The fuel pump relay has RedGreen on pin 87 Pink on pin 30.(relay contacts). OrangeBlack on pin 85 Brown on pin86.(relay coil). This is fed from a 20Amp fuse located behind the battery.
Originally Posted by cc1 The fuel pump relay has RedGreen on pin 87 Pink on pin 30.(relay contacts). OrangeBlack on pin 85 Brown on pin86.(relay coil). so i need to connect it to the brown cable. do you know which is the relay the front or the back one as you look at it
so the fuel pump relay is in the engine bay. that will help me locate the wire i need for the rev counter now i guess. obv connected to the wrong wire. oopsy daisy. i was going to try and get the dash off to have a look for the supposed connector that is behind the central vent shaft. but to much hassle i think.
i wish i could check but i kinda crashed my sei. but if thats nt there. i have to connect the light blue wire from the counter to a wire that comes fro the fel pump relay. just i cant find the fuel pump relay. hmmf.
it doesnt have one it has a main injection replay and a fan relay thats it.
Im not sure which pin is 23 on the ECU . I dont want to mess too much with the ECU as I know its pretty easy to kill them if you are not careful. Plus I dont want to mess up the wiring loom. What I was going to do was find the wire in need on the relay then trace it into the vehicle then splice into it inside the dash. I though this would be neater and better protected from the weather.
the fuel pump relay has nothing to do with the fuel guage. IF the fuel pump relay is broke you wouldnt able to start your car. Ming
Clicking noise might be the fuel relay as suggested trace it. fuel gauge might be slightly bent stopping it from floating or it could have a hole in it. Just needs checking and adjusting. Cheers D
fuel pump relay is under the bonnet near the ecu its a little red relay with 3 fuses next to it. theres 2 relays there both redone is the cooling fan and other is the fuel pump
if the relay is clicking then the relay is(should be) fine. as said it has no bearing on the fuel guage. if its clicking alot it may well be an exposed wire or earth issue had that problem on another sei and it turned out it was an exposed wire running to the crank sensor that was making the relays go haywire if the float isnt going up automaticaly but works manualy its lost bouyancy almost certainly a hole.
On top of the ECU . May be better to test by substitution (I think theyre very ordinary relays).
Not sure I understood your question properly Is it spi or mpi On my mpi there was no fuel pump relay just a main injection relay and a fan relay If it is spi then its where fingers said. KRistian
it was an spi engine. do you mean the white relay next to the ecu . i might just run some new wires i have a circuit board and key fob with 3 channels on it. i could use the one channel for the fuel pump one for the ignition on and one for start . adam
Are there not two relays (maybe under a cover) at the back of the ECU I think the white one is the main relay. Dunno what your circuit board is like but they dont use relays for fun Id expect the current to destroy most PCBs very quickly indeed.
Quote As Ive now done head gasket skim re & seat valves as still sputtersmis fires Why Compression test would give a very good indication of whether the issue was there. Try Big Mick at eurocarcare. But if it is an underfuellinglean misfire Id suspect the pump rather than the pump relay. relay after all is nowt but a simple electromagnetic switch. If it fails you should get no fuel not too little.
Originally Posted by Pep0 relays are not that reliable if the control line is good id get a new one is there a factor in the local town It not a standard type of relay you wont get one from motor factor. Best bet scrappy ... think fiat wants silly money for them. Try fluffy. Ming
good but if it reeks of petrol still then you need to check the coolant temperature sensor resistor resistance with a multimeter you may be over fuelling... is the relay still clicking
Originally Posted by Pep0 good but if it reeks of petrol still then you need to check the coolant temperature sensor resistor resistance with a multimeter you may be over fuelling... is the relay still clicking Doesnt seem to kepp clicking now ive got a new coolant temp sensor on its way to me today to try the temp gauge on the dash doesnt move even though can tell engines warm
The sporting left the factory as a 1.1 so if yours is a 1.2 its been modified. The fuel pump relay is top right in the engine bay white box near the ecu . There are two fuses under a black cover there as well. Stick your head near the white box and get someone else to turn the ignition on you should hear it click on then off after 2 seconds
The its the relays under the cover behind the ECU . Why do you need to know Cheers D
Hi On my sporting cinquecento this relay is found just right of the ECU unit under the hood Right hand side of the engine bay on the wing...Hope this helps will take a photo when the sun comes up