oxygen sensor heater control

Answers and questions: oxygen sensor heater control

TOYOTA TACOMA Code P0031 Oxygen sensor heater control circuit low

I have a 2004 Tacoma TRD 4WD with 97000 miles. The engine light comes on very seldom. It came on on Oct. 2 for about 8 miles Nov 15 for about 6 miles (my daily commute to work) and this past Tuesday Jan. 4 for 12 miles. Code P0031 oxygen sensor heater control circuit low came up at Advanced yesterday. Should I not worry about this yet since the light is not constant and is so seldomly on Is the computer

Im having the same issue. What I dont understand is that it would do it after the truck is already warm. Why would you get a sensor heater code when the truck is already hot

httpncttora.comfsm2003Repair_M...ecip00313.pdf The AFR (front O2 sensor) has a heating element in the sensor. The element is probably bad. To correct it you should replace the sensor. Use the OEM sensor brand Denso.

JEEP GRAND CHEROKEE p0141 and p0161 oxygen sensor heater

On my 04 overland 4.7 I am getting the p0141 and p0161 codes which is my heater circuit for the oxygen sensors. I have tried resetting the check engine light 3 times and it comes back after a couple days. I have already replaced the relay and the fuse for the o2 oxygen sensor. I just tested the voltage and Im only get 4volts when the engine is on or off. This has me to believe I have a wiring problem

I unplugged the wiring harness from the oxygen sensor and tested the voltage that should be supplying the o2 sensor and Im getting a reading of 4 volts on both sensors This is with my engine completely cold and the ignition key on Shouldnt I be getting 12 volts to the sensor not 4 This is where Im getting my info httpwww.jeepsunlimited.comforums...d.phpt432903 The O2 sensor has an internal heater coil

JEEP GRAND CHEROKEE Oxygen O2 Sensor Heater Circuit Malfunction on two new O2 sensors

I Just replaced all four O2 sensors and I doubt I got two bad O2 sensors. Could this be indicative of a larger problem

031 - oxygen (AF) sensor heater control Circuit Low (Bank 1 sensor 1)

Quote Originally Posted by reichhartkg Now all thats left are lots of little plastic fasteners make AC work make the air blow anywhere other than the top and make the cruise work. both of those things are controlled by vacuum if you have a hose leak somewhere or just the typical hose fell off the canister under the passenger side headlight you can fix that yourself in very little time. I had both old cracked line and the line off the port. 10 and 20 minutes later i was back in business.

JEEP GRAND CHEROKEE P0051 02 Sensor Heater Control Circuit Low

2003 WJ I6 4.0 California emissions package (4 O2 sensors) Got P0051 the other day Im still trying to figure out whats causing it. I ran some of the tests in the powertrain diagnostic manual so far. The resistance of the heater element on the O2 sensor was within the sepcified range so it appears that the sensor may not be the problem. I have also checked the realys and fuses for the oxygen sensors

FORD F150 Oxygen Sensor Heater Ground Help

I have a 1997 F150 4.6 V8 and i have recently gotten a check engine light and the codes are for the rear oxygen sensor on both sides. I checked a few wire diagrams and it showed that there is 4 wires going the oxygen sensor 1 gray 1 black and 2 whites. Now the whites are for the heater part and 1 white should be a 12volt wire and the other white should be the heater ground. Heres the problem both of

Your heaters arent bad if you get 12 volts on both sides. That shows they are continuous (good) but turned off or disconnected on the control side. The heaters are grounded by the PCM. Looks like you have a bad ground or wire somewhere.

MERCEDES BENZ 124 124 Oxygen sensor heater circuit

Hello Searched through few forums and sites but did not see any solid information on what powers the O2 sensor heater. I am getting code 12 on my 95 E320 on DM and this matches with code 11 on HFM module. Then I tested the O2 sensor heater and it tested ok (ohms no ground). I checked the voltage and there is nothing coming in from the feed side. I have tested and ground is good and hence need to move

Thanks for the links. I checked the continuity between the ECM harness (N34) and the positive lead on the G32 connector and it tested ok. Similarly no short between the supply side connection. Still no power is showing up on the supply side even after letting the car run for several minutes. Does the control module cut out power if the sensor is not connected Reading through the forums on other sites

MERCEDES BENZ SLK R170 Oxygen Sensor Tech

oxygen (O2)sensorS Diagnose and Replace . The link has pix and links to other topics aswell . . . . . oxygen sensor Todays computerized engine control systems rely on inputs from a variety of sensors to regulate engine performance emissions and other important functions. The sensors must provide accurate information otherwise driveability problems increased fuel consumption and emission failures can

minimize exhaust emissions and prolong the life of the converter. Unheated 1 or 2 wire wire O2 sensors on 1976 through early 1990s vehicles can be replaced every 30000 to 50000 miles. Heated 3 and 4-wire O2 sensors on mid-1980s through mid-1990s applications can be changed every 60000 miles. On OBD II equipped vehicles (1996 & up) a replacement interval of 100000 miles can be recommended. oxygen

BMW SERIES 5 E39 odd situation with oxygen sensors

hello all. i am completely stumped. so recently driving around my check engine light came back on and i thought it was probably the cat efficiency code. when i checked with a scan tool there were 8 faults . i dont remmeber the exact codes right now but they were for oxygen sensor bank 1 sensor 1 circuit oxygen sensor bank 2 sensor 1 circuit oxygen sensor bank 1 sensor 1 heater control malfunction (or

JEEP CHEROKEE Emissions test... o2 control sensor module not o2 sensors

I have had my check engine light on for a while and have negletced to renew my registration (had my jeep stolen twice and a few other issues so Im short on cash but those are stories for another time) and i recently got pulled over. I now have a few weeks to pass an emissions test. After I got my car back the last time the collission shop took it to a specialized emissions shop and they told me that

shop my car was at when it got stolen. The collision shop is really good and noticed the light was on and had him take a look at it. Any help now you have some more information Thanks for everything so far Good. I gather by those codes you have a California Emissions exhaust sytem that looks like this (pic below) correct If so it looks like those sensor heater faults are pointing at the oxygen

Quote Originally Posted by CCKen Good. I gather by those codes you have a California Emissions exhaust sytem that looks like this (pic below) correct If so it looks like those sensor heater faults are pointing at the oxygen sensors heaters Fuse as being blown. Theres only one fuse to protect all those heaters. Below is a pic that shows the location of the fuse in the Power Distribution Center (PDC)

Quote Originally Posted by CCKen Good. I gather by those codes you have a California Emissions exhaust sytem that looks like this (pic below) correct If so it looks like those sensor heater faults are pointing at the oxygen sensors heaters Fuse as being blown. Theres only one fuse to protect all those heaters. Below is a pic that shows the location of the fuse in the Power Distribution Center (PDC)

MERCEDES BENZ CLASS M W163 w163430 CEL missfires oxygen sensor limp mode

Hey I bought recently 99 430 (140k miles) and she is a hell of a truck. Thing is CEL gets on constantly and engine went into limp mode (twice so far restarting fixes it). She has an LPG installation and i was told that CEL is an usual symptom that i should not worry about (because LPG system emulates oxygen sensors when on). Im pretty sure limp mode isnt one Did a scanner readout Code P0141 O2 sensor

BMW SERIES 3 E36 ECU for the heater control valves.

Can any one tell me which ECUbrain controls the heater control valves for a 95 325i Sent from my Galaxy Nexus using Bimmer App

and is very sluggish when given gas. The heater no longer produces heat. The control valves arent opening. When I checked the wiringplug at the valves the hot side had 13.5 volts going to each valve but the ground side (I assume its the single yellow wire to the plug) had nothing (registered 0 ohms) my cel when I diagnosed it showed 1215-mass air flow sensor 1224-intake air temp sensor 1221 oxygen

heater valves are controlled by the temperature controller module in your dashboard. There will always be 13.5 volts on the hot side of the valves. The return side goes to the temperature controller module and it switches them to ground or open to control the valves. Quote Originally Posted by jiminix my cel when I diagnosed it showed 1215-mass air flow sensor 1224-intake air temp sensor 1221 oxygen

PONTIAC G6 oxygen sensor- which one do I need

Hi my check engine light came on today and the computer was throwing 2 codes P0030 (O2 heater control circuit bank 1 sensor 1) and P0135 (O2 heater circuit bank 1 sensor 1). I went to the acdelco parts website and it shows my car takes the following two O2 sensors sensorHTD OXY(POSN 2) Part Number 213-1574 Product Notes Heated oxygen sensor (Position 3) Post converter Per Vehicle 1 Years 2006-2007

JEEP GRAND CHEROKEE oxygen sensor

I have an 03 grand cherokee with the 4.7. Engine code P0051 came on the other day. This is the low air fuel ratio in the front oxygen sensor. What steps should I take to fix this put a new sensor in or could it be something else. THANKS for the help

Thats a heater control circuit code for the bank 2 sensor 1 O2 sensor. Its almost definitely the sensor itself. PM me if youd like pricing for a genuine Mopar sensor - JeepForum members get 25% off what youd pay at the dealership. Quote Originally Posted by yj35s I have an 03 grand cherokee with the 4.7. Engine code P0051 came on the other day. This is the low air fuel ratio in the front oxygen sensor.

FORD F150 Oxygen Sensors

I have seen lots of talk about swapping out stock OEM O2 sensors with new ones. In particular sensors builts by Wells are touted as the best. What is the advantage or gain I cant find anything that supports changing them out except in the case of a failure.

lowflyingbird I think I would find another tech. The heaters only job is to heat the O2 sensor up faster. The temp. of the exhaust is more than enough to keep it hot. There was a time when O2 sensors had no heaters and worked just fine. The only reason they have the heaters is to reduce the amount of time the engine spends in open loop. Open loop is when the PCM uses set parameters to control the fuel

Quote Originally Posted by ohboy44 lowflyingbird I think I would find another tech. The heaters only job is to heat the O2 sensor up faster. The temp. of the exhaust is more than enough to keep it hot. There was a time when O2 sensors had no heaters and worked just fine. The only reason they have the heaters is to reduce the amount of time the engine spends in open loop. Open loop is when the PCM uses

BMW SERIES 3 E46 Damaged Oxygen sensor p0036

I think I probable have a damaged oxygen sensor or wire. Does anyone have information on this ie where the sensor is located how to repair I did a web search and came up empty. Maybe someone can point me in the right direction. Thank you.

My SES light is on because of the oxygen sensor code P0036 - heated oxygen sensor heater control circuit bank 1 sensor 2. I found the part on-line and it looks like it plugs into something somewhere -0

Quote Originally Posted by Shoalin My SES light is on because of the oxygen sensor code P0036 - heated oxygen sensor heater control circuit bank 1 sensor 2. I found the part on-line and it looks like it plugs into something somewhere -0 Clearly this is related to your exhaust issue. They probably killed it while torching your exhaust out. This would be your post cat sensor which there are two of located

BMW SERIES 3 E46 Which Oxygen Sensor Theres 2

Ok Im stumpt. I need to replace the 02 sensor for my car a BMW 330i 2003. The 02 sensor that goes to bank 1 cylinder 3. There are 2 different ones made by Bosch 15681 and 15680 one is for the back manifold and one is for the front manifold. I ordered 15680 front manifold but then I realized I might have ordered the wrong one. Did I pick the right one or do I need to return my part

Quote Originally Posted by el Look at your codes again they should indicate pre or post cat o2 sensors. Bank 1 cyl 1-3 Bank 2 cyl 4-6. There are 4 02 sensors total and 2 different part numbers (pre and post). The codes should indicate which bank as well as position relative to the catalitic convertor. Here is what the code says P0036 - Heated oxygen sensor heater control Circuit bank 1 sensor 2 Thats

Need advise on oxygen sensor problem

Car has long tube headers and has the rear sensors unplugged. I had some problems least month with faulty wiring. I finally got it all fixed and running good. I started getting a P0151 code. but it still ran good. It was a nice day today so I took a look. Side note the shop that installed the headers did a hack job on the harness to the sensors when I complained the owner looked at it and fired the

Quote Originally Posted by n8dogg Id recommend locating the shop manual and 02 sensor schematics. If the car ran fine before the shop messed up the harness and ran like crap after I imagine it is due to the wiring not the 02 sensor(s). Do you have the rear 02s crossed If they are not it will run like crap. Simple solution remove the rear 02 sensors all together. Cap the bungs. Youll get a check engine

TOYOTA YARIS DIY changing the Oxygen O2 sensor on Yaris hatch MANY PICS

This is just a pictorial of what you will see and what I used to do the job. Do this at your own risk You can get burned and really screw up your car trying to remove these parts. If you get stuck you may need to hire a mechanic to to fix your mess . I was able to successfully change out both my AF sensor and the lower oxygenO2 sensor. I learned real fast that doing this with cold pipes is futile.

my english is bad. My yaris (TOYOTA YARIS (NCP90L-AGMRK)) have code P0031 HO2S heater control Circuit Low (Bank 1 sensor 1). it has two oxygen sensors which one should I replace according to the diagram below ... httpwww.toyodiy.compartsp_G_200...htmlhl89465A which one is Bank 1 sensor 1... the part number 89465-52370 or 89465-52380 number

MAZDA 6 I GG GY P0057 - Which oxygen sensor is this

Hey guys Ive got a 2004 6S and have the following as a current code P0057 - 02 sensor heater control circuit low (bank 2 sensor) I also have a P0138 and P1410 pending. For each of these I have found information in the service manual. For the P0057 I am having a hard time finding information and cant seem to find it in the factory service manual. Which 02 sensor is this exactly Has anyone else had this

JEEP GRAND CHEROKEE rear Oxygen Sensor Wiring questions

Just purchase another Jeep for my son 98 Grand Cherokee. It looks like the wires got ripped apart on the rear 02 sensor behind converter I am guessing by the rear drive shaft and I do not know which wires go where being the colors do not match. someone worked on this before. It looks like the sensor is relatively new. I was hoping one of you could help out. This is what I have on 02 sensor (behind

Quote Originally Posted by ZeeJay1997 sorry im lost in the post here. so when you drove it and it was stalling was the front o2 connected it will not code for the o2s right away after a pcm reset. have you driven it with the front o2 disconnected what kind of o2 sensor did you install im not sure whats going on with the map voltage and the code you had. the PCM is looking suspect but we need to be

Quote Originally Posted by ZeeJay1997 sorry im lost in the post here. so when you drove it and it was stalling was the front o2 connected it will not code for the o2s right away after a pcm reset. have you driven it with the front o2 disconnected what kind of o2 sensor did you install im not sure whats going on with the map voltage and the code you had. the PCM is looking suspect but we need to be

NISSAN P1148 & P0031 - Possible Bad O2 Oxygen Sensor

Hi Everyone For anyone who is familiar with my tribulations with my failed engine I had a salvage engine put into my 2007 Nissan Versa SL HB. Its been almost 600 miles and after fixingclearing a P0507 by doing an idle relearn process at under 200 miles on the salvage engine Im getting new error codes. P1148 - CLOSED LOOP control P0031 - AF sensor 1 heater Those two are definitely related. Maybe the

KIA SPORTAGE I K00 oxygen sensor

I am installing a hydrogen generator on my 2001 sportage and need to know if the O2 sensor is wide band or narrow band. Also it looks like I have two O2 sensors on engine side before cat Is this correct. The first O2 sensor has four wires two white one gray one black. Is the gray the control wire I think the white wires are heater wires. thanks for any help

BMW SERIES 5 E39 Oxygen Sensors (Wrongly Ordered)

Good Day I ordered the wrong sensors for my 1999 528i. The original sensors presently still in the car have wire leads that are about 990mm long. The Bosch 13477 sensors delivered have leads that are only about 200mm long. What now I live in South Africa and got the parts from America. It will be a lot of unnecessary trouble now to change them. I went on Part numbers supplied when I ordered and and

Truth be known just about any O2 sensor wil work as they all function in such a similar fashion. They all basically fluctuate between about 0-1V as the mixture they see changes. Most BMWs have a choice on O2 sensors anyway. A more expensive sensor that will have plug and play connectors made just for your car and a more generic sensor that will not have a connector to mate with your existing and will

MERCEDES BENZ 190 W201 oxygen sensor indicator lamp

1992 190E 2.3L I just replaced the oxygen sensor and the O2 sensor light is still on. does anyone have any ideas on how to reset the indicator lamp

Quote Originally Posted by chuck1960 Lol well in a way thats great its an expensive part. Car wants to stall upon red light stops especially if a heater or defogger is on. I cleaned everything I could find in the air filter portion with electric components cleaner. (no residue) Just put in a new battery when the stalling started We were looking forward to that smooth care free ride. Thanks for any

Quote Originally Posted by slk230red If it happens when the heaterdefogger is on then it might be a vacuum issue. Have you checked the condition of the vacuum hoses going to and from the Idle control Valve Remove the air cleaner housing....the ICV is behind the fuel distributor. The vacuum hoses need to be in good condition and tightly connected to the ICV. The bottom one goes to the air intake boot.

Quote Originally Posted by chuck1960 Thanks Ill try that one next. The rpm is at 5 just a hair above with the feel of stalling (neutral at lights helps) then back down after its in gear. Sometimes its fine most times not but of course heaterdefogger will trigger it. (lights on seems ok) Ill get at it straight thing tomorrow morning. Wish I could keep going today though its sounding hopeful. Should

BMW SERIES 3 E36 O2 Oxygen Sensor relay

Hi Guys Today I was looking after the relay for the o2 sensors at the fuse box I used this diagram to find out where it is located it says here that its relay number 3 from the top https1004.beta.photobucket.comus...tmlsort3&o1 But if you look at this picture I took of my own fuse box I happen not to have any number 3 relay can some of you guys please identify which one it could be instead because

then i would not suspect an o2 as my first suspect. when the car first starts it is in open loop which is a preset parameter from the pcm knowing the car is cold. the faster it warms up the sooner it can get into closed loop which is why the heaters are on o2 sensors however engine coolant temp also plays a part and will take a bit longer to get to operating temps but reports in when the engine is

Quote Originally Posted by drivinfaster then i would not suspect an o2 as my first suspect. when the car first starts it is in open loop which is a preset parameter from the pcm knowing the car is cold. the faster it warms up the sooner it can get into closed loop which is why the heaters are on o2 sensors however engine coolant temp also plays a part and will take a bit longer to get to operating

AUDI A4 B5 O2 sensor and pinout

Need a new upstream o2 sensor for my 2001 A4 1.8t. - There are several Bosch sensors that claim to be the correct one for my car does anyone have a specific one to recommend - Since Ill need to splice the new sensor onto the current connector does anyone have a pinout Id also like to put an AF ratio gauge on there while Im at it. Am I correct that there should be two heater wires two lambda current wires and one signal wire Thanks

1.8T I found this on AutoHaus AZs website Your Parts Search Returned 4 Part(s) Also on ECS Tunings site OEM Performance Parts for Audi BMW Mercedes Benz Mini Porsche & Volkswagen - ECS Tuning If you input the OEM part number 1K0998262D into Autohaus AZ search you get the Bosch 17351 . Notice its 13 cheaper than ECS Tuning plus free shipping. And its even cheaper on Amazon Amazon.com Bosch 17351 oxygen

MERCEDES BENZ 190 W201 Whats the O2 sensor

What is its specific function or purpose

Gasoline engines run best when the air-fuel mixture is correct. The air-fuel mixture must be controlled to reduce exhaust pollutant emissions. Lowest emissions are achieved with a slightly lean mixture. The catalytic converter an essential part for emission control also likes a controlled lean air-fuel mixture. The oxygen sensor detects the air-fuel mixture of a gasoline engine by measuring the amount

JEEP GRAND CHEROKEE II WJ WJ 4.7L 2001 O2 sensor problems [P0031 P0135 P0155 P0132]

Jeep info 2001 Jeep grand cherokee limited 4.7L V8 engine California emissions (4 O2 sensors) transmission 45RFE Well lets start from the begging. my Jeep was running completely fine until one day I got the dreaded P0700 code. I replaced both speed sensors replaced both transmission filters replaced the solenoid pack put new transmission fluid in and replaced the TCM - this cleared out the P0700 code.

BMW SERIES 5 E39 E39 528i O2 sensor replaced and CEL is still on

Hello BMW community So this is my first time posting after being a long time reader but after reading thread after thread for about half a year I decided its time to post my own so ill provide some background information to star. I have a 1998 BMW 528i (E39). I bought it off of a guy who tried replacing the head gasket and ended up bending all the valves in the cylinder head when he started it. After

Trying to clarify some confusion For the code P0155 55 O2 sensor heater Circuit (Bank 2 sensor 1) Bank 2 are cylinders 4-6 sensor 1 is pre-cat. Since the DTC re-appears the fault continues to exist. The pin outs for the O2 sensor plug are 1 Signal oxygen sensor heater 2 oxygen sensor signal 3 Terminal 87 (fuse 3 in Ebox) 4 oxygen sensor signal So pin 3 should have 12V from the fuse. The DME provides

VOLKSWAGEN PASSAT B5 O2 Sensor Replacement - P0030 P0135

Hello A couple days ago my check engine light (emissions workshop) came on and thanks to some searching of this forum I found out about the free OBD-II scans that Autozone provides so I took it down there last night and the (very friendly) technician pulled two codes - P0030 and P0135. The computer inside printed out a couple receipts with details P0030 Definition Heated oxygen sensor - bank 1 sensor

BMW SERIES 3 E36 1995 325i MAF Sensor Question

Hi Im new here and I really know nothing about cars but I need help. I have a question about my cars Mass Air Flow sensor. Every time I turn my car on it idles for a few seconds and then it runs fine. But my dad took it to a BMW mechanic and he said it was the MAF sensor. My dad bought cleaner and cleaned it but it didnt make that big of a difference. So I bought an aftermarket MAF and it came with

Quote Originally Posted by sugarvenom Okay and what do these codes mean depends on the code. heres a list of what each code means that i copied and pasted from pelican parts ( httpwww.pelicanparts.comBMWtech...nostics%20.htm ) 1211 DME control Unit 1215 Air Mass sensor 1216 Throttle Potentiometer 1218 Output Stage Group 1 1219 Output Stage Group 2 1221 oxygen sensor 1 1212 oxygen sensor 2 1222 Lambda

JEEP WRANGLER Jeep throwing codes 0031 0051 0136- O2 Sensor

Out last night in the snow and ran over some rail road tracks and my engine light came on. I ran the test and it gave me back the codes P0031 - Shorted low condition detected in the oxygen sensor 11 heater elementcontrol feedback sense circuit ( Bank 1 sensor 1) P0051 - Shorted condition detected in the oxygen sensor heater element control feedback sense circuit. (Bank 2 sensor 1) P0136 - An open or

JEEP WRANGLER all 4 o2 sensors throwing codes

all 4 sensors on my 05 TJ were throwing codes so I picked up two new sensors for the top (before the cats). put them in yesterday and had a buddy reset the codes...no dice all 4 are still showing faulty readings could this mean that my cats are out I called a dealership and talked with a service guy and he said that it is strange that theyre all 4 throwing...he said it could be a wiring issue. anyone

P0032 oxygen (AF) sensor heater control Circuit High (Bank 1 sensor 1) - DTC Code P0052 oxygen (AF) sensor heater control Circuit High (Bank 2 sensor 1) - DTC Code

JEEP CHEROKEE O2 sensor codes

I pulled my codes and 2 came up p0141 which is heater condition (heated oxygen sensor-bank 1 sensor 2) and p0138 which is circuit condition (heated ixygen sensor bank 1 sensor 2. I want to pick up a new sensor but am not sure if this is before the cat or after I wanna get it installed this weekend if possible I also have a massive exhaust leak my tailpipe is detached from the muffler I was told this

I got the check engine cleared last night around 4 by 520 it had turned back on I am going to get the codes pulled again today and see what comes up Before I cleared the system my codes were as follows P0138- Circuit condition-heated oxygen sensor bank 1 sensor 2 p0141- heater condition-heated oxygen sensor bank 1 sensor 2 P0705-Not sure the definition P0700-Transaxle control system fault P1682- Charging system voltage always low Deff want to see whats causing the check engine to trip so fast

VOLKSWAGEN PASSAT B5 Help with some codes (o2 sensor) and misfires...

So... My car has been hesitating with acceleration in 2nd and 3rd gear. Just yesterday for the first time my idle was fluctuating between 800 and 1000 rpms and the CEL started blinking. I know my o2 sensor has been on the outs but I have never felt any ill effects from it. But now the other one is failing too. I saw my vacuum lines falling apart so I replaced those yesterday (took 20-30 min and well

KIA SEPHIA II O2 Sensor Wiring Help Please

Hello to all. This is my first post here. I just recently purchased my first Kia and Im trying to pass smog so I can register it in my name not to mention the tags expire in Dec. Its a 2001 Kia Sephia LS with 92k miles. Had 4 new tires and a full tank of gas. I got it for 800 due to it needing a new power steering hp line (quick fix). So heres whats going on... I took it to smog it failed. NO (PPM)

Ok well Ive been looking for those electrical schematics but still no luck. Not much under engine electrical system. I find some under Fuel System Engine control System Heated oxygen sensor I tested the resistance on the sensor itself. Says I should get between 0-4 and im getting 11.7 on the up sensor 10 on the down sensor. The engine was hotter than warm but not burning to the touch when I checked

JEEP CHEROKEE Code P0432 after changing O2 sensors.

OK so I thought to myself hey I can change my 158K mile old O2 sensors out for under 200. I have everything to gain and nothing to lose right So I replaced my upstream ones with bosch units tuesday and the downstream ones with bosch ones today. I went to go buy a motorcycle helmet and on the way there I stopped for some Qdoba. 5 minutes after eating the check engine light came on throwing P0432 Main

system leaks - Loose front or rear HO2Ss - Faulty front heater O2 sensor - O2 sensor wire harness is open or shorted - O2 sensor poor electrical connection Tech notes As the code description implies the P0432 code means that the vehicles control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting). Replacing the oxygen

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