sensor reference voltage fiat

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sensor reference voltage fiat STILO
sensor reference voltage fiat STILO

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FIAT CINQUECENTO 170 1242 8v turbo map sensor issue

Hi aol as you know iv turbo the 1242 8v engine using MF2 Still having a few running issues...now when the engine warms up it cuts out...itll slowly develop a misfire only a slight one then just stall...but I realised if I unplug the MAP sensor wire it looks perfect son as MAP sensor is plugged back in same problem...id of thought that the car wouldnt run without the MAP sensor tbh but it runs perfect

The MAP sensor has a 5v reference voltage supplied to it (IIRC) - check that that is stable.

Originally Posted by arc The MAP sensor has a 5v reference voltage supplied to it (IIRC) - check that that is stable. The 3 bar cosworth sensor has a solid 5v reference voltage but the standard MAP sensor has a 4.75-5v reference...but it always did have even with me old engine and it worked fine on that where does the reference voltage come anyway so i can check that or can i just bypass the wiring from my 3bar cosworth map and use that 5 volt reference for the standard one

Originally Posted by arc From where Be careful youll introduce ground loops and upset everything if youre using a different power source. Is your ECU OBD2 Plug something in and look at what pressure the MAP is reading. 42Kpa on tickover and when it stalls Why is the reference voltage low ECU fked

FIAT BRAVA 182 MAFMAP Sensors

Just out of curiosity what is the difference between a map and a maf sensor or is there any difference

they arent even similar. a MAF sensor is a hot wire sensor. a constant voltage is applied to the wire (often called the film). the wire is positioned in the air flow (usually a sampling channel or chamber in the inlet pipe). the current passing through the wire heats it up. as air flows across it it cools down. the wire is basically just a positive temperature coefficient resistor. its resistance drops

FIAT UNO II Flywheel Sensor Replacement

I need a new Flywheel sensor for the UT. Have been quoted &16350 by the dealers which seems pretty steep any suggestions for a cheaper place Could chance the scrappies but would rather know I was getting a good sensor. Have tried shop4parts and the item has been delisted on their system. Interestingly if the car was the CAT model the sensor is only &16330. Anyone know if this sensor is common to other cars

Well the UT is now running again. New Flywheel sensor installed and she starts on the button. Only cost &16360 inc VAT ouch. Im convinced that this sensor has multiple part numbers some which wouldve been cheaper. My problem was the car wouldnt start car turned over on the starter petrol pump active - could hear it prime - but the car wouldnt fire. checked distibutor was turning and the cap was good.

FIAT STILO P1220 and P0571 - Do they relate

Stilo 1.6 2001 here. Had the engine fault sign on the dashboard yesterday - The car went into Safe mode. Turned it off and on revs OK I managed to get back home (this happened a couple of times on my way back). I checked the car with FES and it showed P1220 and P0571 errors. While in the car I checked if the brake lights function well but they did not turn on when a pressed the brake (just flash randomly).

P0011 A Camshaft Position - Timing Over-Advanced or System Performance (Bank 1) P0012 A Camshaft Position - Timing Over-Retarded (Bank 1) P0013 B Camshaft Position - Actuator Circuit (Bank1) P0014 B Camshaft Position - Timing Over-Advanced or System Performance (Bank 1) P0015 B Camshaft Position - Timing Over-Retarded (Bank 1) P0016 Crankshaft Position Camshaft Position Correlation (Bank 1 sensor

FIAT PUNTO GRANDE PUNTO 57 plate t-jet problem - engine management light

Right guys the other week the engine management light came on (constant) saying check engine. (so topup with oil and check coolant and everythings fine again.) Came on there tonight again (constant) saying same message. Now ive looked at the other old threads posted up but nothing up to date in basically a year. So is it the egr valve or is it something else And please dont tell me to buy a reader of ebay like in other threads either you have an answer or you dont.

P0113Intake Air Temperature Circuit High Input P0114Intake Air Temperature Circuit Intermittent P0115Engine Coolant Temperature Circuit Malfunction P0116Engine Coolant Temperature Circuit RangePerformance Problem P0117Engine Coolant Temperature Circuit Low Input P0118Engine Coolant Temperature Circuit High Input P0119Engine Coolant Temperature Circuit Intermittent P0120ThrottlePedal Position sensorSwitch

FIAT PUNTO GRANDE PUNTO Eobd light (

Hi all my eobd light has come on and after warming the car up I noticed the temp gauge drop suddenly Ive looked but cant find no help is the car safe to drive as Ive got a long drive to work to do tonight. Any help will be much appreciated so thanks in advance P.s I aint a mechanic so please talk basic talk to me

1) P0011 A Camshaft Position - Timing Over-Advanced or System Performance (Bank 1) P0012 A Camshaft Position - Timing Over-Retarded (Bank 1) P0013 B Camshaft Position - Actuator Circuit (Bank 1) P0014 B Camshaft Position - Timing Over-Advanced or System Performance (Bank 1) P0015 B Camshaft Position -Timing Over-Retarded (Bank 1) P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 sensor

FIAT 500 II 500 multijet fault code

Hi guys I have a 500 1.3 multijet that has no guts. The engine management light is up it wont rev above 3200 revs .I have bought a fiatecuscan and on using it have come up with a fault code P0641. Can anybody help me out as it seems to relate to a short circuit on some censor but which 1 I have no idea.I think it might be connected to the exhaust DPF censors but I am only guessing if anybody could help I would be so grateful. Cheers Gary

I dont think this problem will be anything to do with the battery or alternator. Definition I have for P0641 is sensor reference voltage A CircuitOpen The reference voltage for most engine sensors that need one needs to be an accurate 5 volts and is supplied to the sensor by a voltage regulator in the engine management ECU. Unfortunately the definition doesnt say which sensor P0641 relates to but a

FIAT PUNTO II 188 188AX Trying to fix my Punto Mk2

Hi Guys So Long story short. I bought my first car this january. Great deal at first and i managed to get my driving license with it. But then the thing started to fall apart . So now its at a mates garage completely immobilized Specs Punto Mk2 from 12001 1.2 8v petrol 170 000km no central locking or electric windows but air conditioning When i bought my car the break pads and drums were changed by

are firing properly. A P0300 diagnostic code indicates a random or multiple misfire. If the last digit is a number other than zero it corresponds to the cylinder number that is misfiring. A P0302 code for example would tell you cylinder number two is misfiring. Unfortunately a P0300 doesnt tell you specifically which cylinder(s) isare mis-firing nor why. P0130 httpwww.obd-codes.comp0130 The O2 sensor

FIAT BRAVA 182 Brava automatic cold start noise

Hello everybody (my first post) Ive recently bought Brava 97 automatic (with 71K kms) and found a strange problem which could not be detected before purchase as it would only show up during cold start. After the cold start in the morning the engine starts easily and runs smoothly but pressing the accelerator pedal seems to choke it and I have to let it run for some time before the engine will rev up.

when testing the temp sensor you can disconnect the wiring connector and use the contacts with a multimeter to read the resistance. resistance will decrease as temperature increases. at 0 degreesC the resistance should be 10K ohms. at 20degreesC this should have dropped to 5k ohms and by 60degreesC there should be almost no resistance at all. measuring the temp of the coolant so you know what to expect

Finally a full investigation report... Checked coolant temp sensor resistance before starting the engine at 11C (couldnt get lower in the garage) and it measured 4.7K. After warming up the engine at the moment when fan kicked in it measured 200 ohms. The reference voltage was 4.95V. All readings according to Haynes are within limits (resistance to be 180 ohms at 100C 300 ohms at 80C 2.3K at 20C and

FIAT PANDA I 141A 141 Help Think I have an electrical problem

New Times Roman Can anyone please help me with a problem I am having with my fiat Panda (1996 model). Went to start the car and found it was only firing on 2 cylinders. Checked spark plugs they were ok. Checked power supply to one of the coils (its has 2)and there was no power and also brake warning light stays on. Is the warning light staying on because its only firing on 2 and there isnt enough vacuum in it or is it another problem

The idea with twin coils is to do away with the distributor - a mechanical lump prone to wear and variation between one and the next resulting in inaccuracy in ignition timing and more voltage lost across the rotor arm gap than you would through another spark plug. The timing reference on later Pandas is a toothed wheel mounted on the crankshaft in front of the alternator drive belt. There is a sensor

Originally Posted by reddy4bed The CAT can only work properly if the exhaust gasses supplied are in close proximiity to the stoic ratio so first you need to get the stoic correct. Measure the dc voltage op from the lambda sensor if its running rich then the voltage should be 0.8v proving the lambda is ok. If its ok then a sensor reading is out of spec causing ecu to demand open loop. No MAP on this

FIAT PUNTO speedgear problems

hi everyone here goes. I have just got hold of a 1.2 16v mk2 punto speedgear it had engine mangement lights on so i scanned them and they were lambda sensor 2 failure and camshaft sensor failure and a little light pops up on dash next to the handbrake light. it looks like the handbrake symbol but insted of lines down the side its dashes. so i replaced the lambda and camshaft with new parts and started

Hi I think I may have given you a bad steer with 11-14 volts I did think it was a little high from the data I was reading as most sensors use a 5 volt reference. The thing with cam sensors is you wont normally notice any really bad drivability problems even though fuel timing is associated with this sensor. The fact you have a fault code present may well be a red herring because your drivability problem

FIAT PUNTO Four Garages & The AA Cant Tell Me Whats Wrong With My Car Can You

Please could I call on the knowledge on this forum. I have taken my 2000 1.2L Punto to four different garages and also had the AA look at it when it first had a problem. The car just dies when accelerating under load and you go nowhere and the engine wont rev. I did have a faulty injector and a MAP sensor but they have both been replaced and the problem still persists. Today I took it to a garage and

Originally Posted by fingers99 I agree. Lets not forget that 1. Several aftermarket systems run without a knock sensor 2. While the ECUs on several modern cars can take advantage of higher octane fuel theres no evidence whatsoever that peak power is developed a couple of clicks below detonation. Its way more complicated than that. 3. The ECU fitted to MPI FIRE engines is unable to adjust to higher

FIAT DUCATO zolja012

I need wire connection for fiat Ducato 2.3 JTD

CD I have shows the attached circuit (click the preview for larger version) and says the following 2300JTD Engine management control unit M10 controls and governs the entire electronic ignition and injection system. Engine bay control unit B001 houses fuses F02 F11 F17 F18 F20 F21 F22 and relays T19 T09 T10 designed to protect and control the supply to engine management unit M010 and the various sensors

FIAT CINQUECENTO 170 RPM counter

This is not your typical RPM counter question. Im studying electronics here and id love to make a digital rpm counter but i need some more tech details on the seicento ecu . I understood that theres some sort of rpm information on pin 23 of the ecu (violetblack wire). As far as i understood it gives one 5v pulse for every rotation. Am i right If the above is right the best resolution ill have is 60

at uni... Quote 60rpm resolution Wouldnt it be a 1rpm resolution Having said that youll probably want to display no more than 3 digits maybe even just 2. The difference of 1rpm is pretty meaningless. If i choose a sampling time of 1 second then ill have the number of revs in that second. If the engine made 1 rev in that second that is 60160 rpm. Thats why ill probably use the crank shaft sensor

FIAT BRAVA 182 accelleration

hi i have a fiat bravo 1.2 and the problem which i have got with it is when i push down on the accellerator it really hesitates and judders slightly then it will sort of find itself and drive normally for a short while until i give it more gas. i havnt a clue what this could be and any help would be great

certainly related to a fast acting sensor ignore lambda and other map related things like coolant temp air temp map sensor sounds about right try take it out and check its not blocked or fouled with oil if its on the end of a pipe check for splits and again blocage i cant quite remember were mine was there is a feed voltage of 5 volts a reference earth and a signal wire ranging from .5 to 4.5 volts

FIAT STILO No Gears

I have a problem with my Stilo Abarth. Sometimes the car drives fine but then jumps into neutral & wont select 1st or reverse. If i turn the engine off for 10 mins or so it works fine. This also sometimes happens when i stop the car then try using it a few mins later. I was thinking it was something to do with the brake light switch but the brake lights work fine My friend has a Snap-On diagnostic

accelerator pedal released brake not pressed and speed below 4.5 kmh) Errors on CAN network (in the following conditions engine on accelerator pedal released brake not pressed and speed below 4.5 kmh) Engine speed (in the following conditions engine on accelerator pedal released brake not pressed and speed below 4.5 kmh) Electromagnetic brake (Selection solenoid) Clutch solenoid current Clutch sensor

FIAT CINQUECENTO 170 Urgent Help Needed For Trax... Engine Probs

Bit of a long shot but someone on here may have an idea.... Basically ive sorted out my gears (had to remake the whole linkage) and now im left with the last engine problem... The car idles fine no problems and doesnt overfuel idling. When i rev the car it seems to die then pick up with the rev. It does this every time i rev the car. Does anyone have any ideas (persoanally thinking that the fuel pump

either the sensor or its wiring is at fault. Im not sure on how they are wired but like i say - if the fiat one doesnt get its 5v reference voltage then it goes a bit screwy. It is (imo) safe to drive it with no TPS so long as you dont make any massive movements on the throttle. It shouldnt need the TPS to do anything apart from accelerate so as long as that is done gradually - itll be fine to get to trax.

A stuck open EGR valve will create a lack of oxygen in the exhaust since the re-circulating exhaust has all its oxygen already burnt. O2 sensors can detect this and are used to check for proper EGR operation the 8v doesnt have any O2 sensors so its impossible for it to check for proper EGR operation. If a fault code is thrown up it must be coincidence because theres now way an 8v can detect a blanked

FIAT BRAVA 182 Bravo Hgt Problems Pls Help

the story so far....... ... the mrs was driving along in our bravo HGT and it suddenly just died. i went out to car with petrol(thinking it was that) but wouldnt start. it just turned over. not firing or anything. the AA came and thought it may be crank sensor so i got it towed to fiat . next day fiat put it on diagnostics machine and it came back with phase sensor not feasable. they told me they wanted

i was about to suggest key code light but youve beaten me to it so next we need to do continutiy tests on the wiring from crank sensor to ecu . disconnect the crank sensor connector hold it with the push clip at the top and the following is true left pin goes to pin49 on ecu connector centre pin goes to pin48 on ecu connector right pin goes to earth check that the 2 wires going to the cu connector

FIAT PUNTO Help 1.2 16v wont start

Hey guys A friends Punto was taken to a local garage because it was originally misfiring on two cylinders and then wouldnt startrun at all. We wanted it taken to a specialist (Sheldt & Pettet) but the idiot tow truck driver would only take it somewhere local. Anyway these yeehaws reckoned the timing belt skipped and it had bent valves. When i got the car it had all the parts with it but no valves.

Originally Posted by red First of all I know youve sorted the valve timing but I needed to get my head round it for future reference. Heres what I think For SPI the ECU sparks two plugs and injects some fuel every 180 degs of the crankshaft which is every 90 degs of the camshaft(s). The ECU doesnt need any signal from the camshaft(s) it times spark and injection from the TDC sensor on the crankshaft.

as they seem to affect the spark timing. It runs real fine on standard NGKs Try your car without the MAP as i suggested but use contact cleaner on the contacts before you reconnect it again as that may be causing a bad contact problem Its not really obvious but the airconditioning linear pressure switch (at the front low down drivers side) is on the same reference voltage circuit as the MAP sensor

FIAT STILO Multijet 150 16v questions

Hi Guys. I only picked the car up sunday and have already covered over 450 work miles in it with no problems but i have a few questions. Firstly what should the low rpm performance be like i had a 11 year old 206 hdi with 60bhp less at it felt to have more grunt between 1600 and 2300 rom than my stilo the stilo does not feel slow in that area but not much diesel grunt that im used say above 2800rpm

It was tested with a sykes pickavant tester dont know what reference these codes will be 2A00 - lambda voltage above threshold 2626 - Lambda sensor 113 1- lambda 1 singal upstream plausibity

FIAT STILO car will only rev upto around 2000

Hi Have managed to get all the other problems fixed however on its way home from passing MOT my stilo multiwagon decided to break down Engine cut out-when started up again engine runs but when putting foot on accelator pedal nothing happens and revs stay same. Has thrown up fault codes P1220 and P1687. Can anyone please help

get you home mode with limited rpm and a P1220 fault code and sometimes P1687 You need to find out why the throttle valve feedback is bad. Is it the 5v reference being supplied by the ecu Attachment 80459 Is the 5v getting to the throttle valve Is there a poor connection at the throttle valve Attachment 80473 Is something else interfering with the 5v supply eg aircon linear pressure switch MAP sensor

FIAT STILO P1220 Series throttle control malfunction

The car at regular intervals became in emergency operation.There was a languid reaction to a pedal of gas. Properly to go in such mode it is impossible. There was such mistake on scanner P1220 (SERIES THROTTLE CONTROL MALFUNCTION). I have changed a throttle body with Self-adaptation reset Phonic wheel learn reset. Two weeks has spent properly and then again these problems. I from Russia cannot achieve

position then the ECU goes into get you home mode with limited rpm and a P1220 fault code and sometimes P1687 You need to find out why the throttle valve feedback is bad. Is it the 5v reference being supplied by the ecu Is the 5v getting to the throttle valve Is there a poor connection at the throttle valve Is something else interfering with the 5v supply eg aircon linear pressure switch MAP sensor

get you home mode with limited rpm and a P1220 fault code and sometimes P1687 You need to find out why the throttle valve feedback is bad. Is it the 5v reference being supplied by the ecu Attachment 80459 Is the 5v getting to the throttle valve Is there a poor connection at the throttle valve Attachment 80473 Is something else interfering with the 5v supply eg aircon linear pressure switch MAP sensor

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