Hi all, firstly, the most important thing to make clear is my car is a citroen xsara vts phase 1,

secondly, this is gonna be long winded unfortunately.

My car cuts out when the throttle is released and drops back to idle when the engine temperature gets up to about 90 degrees, but only seems to be when the weather is warm. its not cut out all winter, just the revs drop a little bit when the throttle is fully released.

having had my car on several diagnostic machines, a fault that comes up every time is the IAT sensor, I found it was unplugged for some reason, so i looked at the sensor and the housing the housing had fitment for 3 splines
, and the sensor had four splines. so i had to sand the unwanted spline off and it fitted, but no change to the running of the car. here is the sensor

and here is the housing:-

so i bought a new sensor using the reg of my car, and the sensor came back as a four spline item again, i thought nothing of it, so fitted it and still a fault showing. i don't seem to be able to get the right sensor, or the wiring is wrong.

i then took the car to a diagnostic specialist, and he said the voltage supply to the sensor was wrong, that it was supplying 12v and i have no idea what it is supposed to supply. I don't know if the engine has ever been changed, but is there a difference in the sensors between the xsara ph1 vts and ph1 306 gti6? ive attached a couple of really poor images with an explanation on the diagrams to try and help.

Any more info needed just ask.

Thanks.

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My car has 120kg of ballast- Me!

Try uploading them to photobucket then just copy the img tags underneath the photo and paste it in here. Simples

There's a few different plugs that fit that sensor.
But if I'm honest it doesn't make much difference to how it runs, I had
My reverse sensor plug plugged into that sensor and car ran fine and it ran the same after I sorted it.
Only reason I noticed is because I had no reverse lights.
The right plug will fit directly into That sensor, you must have the wrong plug plugged in there if you ask me.

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andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1

I wonder if mine ran better in reverse, as I had reverse switch plug plugged into air temp sensor for 6 months!

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andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1

Yes sorry ICV.

Thats why you can use the code written on the wire and cross check it against the wiring diagram - hence why I mentioned it.

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Nothing to see here

It might not if you reset the ecu...

There were a few different plugs floating about that bit if I remember - its been a few years since I owned a rallye!

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Nothing to see here

Yes there is a few that fit, I think the right one is the same colour as the sensor.
The reverse wire also fits and that's pretty far away but icdid it after changing the clutch.

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andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1

You see we are nice to Xsara owners too

Its probably more pity than being nice though

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Nothing to see here

thermotwat stuck open/missing.

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need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Ok so have an uPdate thermostat replaced temperature is fine, engine now runs at right temp. The car is still cutting out occasionally. Hasnt cut out all winter but now the weather is warming up its cutting out sometimes. Cannot find another plug anywhere to fit the sensor. The photos at the start of this thread are crap but the inside of the plug is purple and the sensor is gray. If this sensor doesnt do much any ideas? Thanks guys. Sorry if spelling is crap on my phone

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My car has 120kg of ballast- Me!