Coolant Temperature Sensor

[sifaan]

In view of the previous fuse box fault you need to start and check all the wires. if you can get hold of the pin data this will make it a lot easier for you. Then start testing the wires. Also your other posting says you are thinking of doing a update on the ecu/bsi i would get your car running correctly 1st otherwise you will just be adding to you problems. if you cant get the pin date then each wire has its own number and can be traced that way from the component e.g coolant sensor wire is 123 (not the actual number) then on one of the plugs in the ecu and fuse box will be a wire with 123 written on it test with a multimeter on both ends to se if you have continuity also check resistence

 

should the agents have the pin data (I'm guessing that citroen should provide them with it)?

tracing the wires from the numbers might be tricky because that's probably on the part that was damaged by the fire but I'll talk to the agents about this when I go in for the diagnostics tomorrow... is it still worth to watch the live data and try to correlate with physical temperatures? at least we might discover the engine is not really overheating - and hence I could keep using the car while trying to fix the issues (e.g. locate a harness).

[coastline taxis]

Whats your engine code sifaan and would any parts need posting to sri lanka

[sifaan]

Whats your engine code sifaan and would any parts need posting to sri lanka

engine code is DCRFNF

currently what I try to do with the parts is to get somebody travelling from UK to hand carry it (which means I'm not quite in control of when I can get the parts down); parts by post can result in taxes so generally try to avoid that... did you have some idea in mind?

[coastline taxis]

Ive got a 2001 2 litre hpi that were breaking and it has a good wiring harness on it. the cooling system was fine on it with no probs at all. was thinking of getting the harness to you. How bad was the damage to the fuse box and surrounding area was the ecu wiring damaged. And just a daft one have you checked the earth around were the fire was

[sifaan]

Ive got a 2001 2 litre hpi that were breaking and it has a good wiring harness on it. the cooling system was fine on it with no probs at all. was thinking of getting the harness to you. How bad was the damage to the fuse box and surrounding area was the ecu wiring damaged. And just a daft one have you checked the earth around were the fire was

that would be great... are the harnesses the same for HPI and indirect injection engines? also citroen site lists 3 engine harnesses and I don't know which of those I should be looking for. will try to see if there's a tag number visible on it.

if it would work, I can see if there is someone who can hand carry it (would also depend on weight/size) or otherwise go for the postage option.

 

i haven't specifically checked on the earth but I'll ask the garage; should I be looking for a good connection to the body?

Will also get some pics of the area to show the current status... I'm not sure how badly the fuse box was damaged, only that it was replaced; also I know some wiring was repaired but not sure if it related to the ecu... however as garage things the wiring repairs maybe responsible for the MAP sensor fault then maybe something in the area was affected.

 

thanks

[coastline taxis]

ok then im back at work on saturday so il pm you the vin number of the car and we can take it from there if there compatable

[sifaan]

ok, here's an update after taking the car in today.

 

first off, the "coolant leak check" job was incompetent to say the least. all they had done was bleed the system. today when the regular (i.e. citroen trained, although that's not really relevant; just that he's more competent!) mechanic looked at it he could see evidence of a leak at the radiator top - turned out the connecter where the inlet hose connects is cracked. it's made of plastic; and plastic radiator tops in Sri Lanka give trouble eventually. luckily it won't cost too much to get a replacement copper top made.

 

of course it still doesn't explain why the problem only appeared about a month back, and at least 3 weeks after any work related to the cooling system (replacing water pump). but what may have happened is that some glue or something was used to "fix" the leak and it lasted until now. given how other "maintenance" has been carried out on the vehicle, I wouldn't be too surprised!

 

needless to say didn't bother with any diagnostics, as the overheating may be purely a result of the leak, so I'll get the leak fixed and see if the problem reappears.

 

however, there are still wiring related issues (in addition to those described before, I also found that the front washer switch turns on the offside fog light briefly!). I took some pics:

overview (you can even see one wire that isn't connected)

close up of the "repaired wires"

wiring leading to the ECU (there has been some repair work there as well)

 

if I can get a replacement main harness that would be the preferred choice rather than having to sort these out 1 by 1 :S

coastline, the tag number is 96 111 412 80, does it match what you've got?

(or alternately, I'll look up the part number when you send me the VIN)

edit: according to citroen, the tag for main harness should be 9649020380; not sure what the number 9611141280 was for...

[c.messer1]

Hi coolant temperature warning kept coming on with the STOP light too.Gauge a bit erratic but after a short distance every thing seemed normal. I visited the local Citroen dealer who said it sounds like the sensor �92 fitted or �9 for the part opted for the part. I have located the sensor (green) managed to get the cable connector off but can anyone explain how to get the sensor out I have twisted pulled etc by hand but to no avail am i missing something?

Hi there maybe some one can help me out please. I have had the same problem with my c8 along with anti pollution faults and catalytic converter faults. I have recently changed my catalytic converter and all is fine apart from this coolant temperature and stop light coming on intermittently? I have replaced the thermostat and that hasn't solved the problem so am going to try and replace the temperature sensor, but i can seem to find it? does anybody know where it is on a c8. 

Its the green sensor 1338A7

 

Many thanks Chris

[paul.h]

Welcome to the forum,

 

which engine is on the C8 ?