macas32

the air intake temp sensor with the plug missing will be hanging down the front of the engine i would bet as it has a long wire but it could be plugged into the black temp sensor as its the same config plus as mine was but mine were just mixed up so both plugs were there? the wires should be blue and brown/green if its the same as my corrado. by the way it sounds like the airflow meter is dodgy by the idleing prob jiggle the plug on it to see if it makes any difference and take it off and check the connections if all ok its prob knackered.

poll 250 have you checked to see if the pump is getting power to it when you turn the ignition on when its playing up, as if it has got power and earths then its either a bad connection at the pump end or a faulty pump at least yours is giving you an idea what is wrong if the pump isnt priming. prob hard for you simulate this fault at home if its sporadic but you need to establish wether its not getting power or the pump or wiring is at fault.

Fitted a new coolant temp sensor (genuine vw one) and reset the ecu and seems to be running better than ever it was smooth as silk and telling me i was getting 29.9 mpg witch is better than average and waited for the fan to cut in to make sure it was hot enough and it started perfect, so hopefully it is fixed !!! :salute: You had your car back from the garage yet with their diagnosis as keen to see what they came up with.2.8l 24v Climatronic system.pdfCIMG1376.JPG[/attachment:2xuc4rum]

will try that today thanks, just noticed on the live data that the coolant temp the code reader is showing does not match the gauge in the car as its saying 105 degees and the gauge is about 65 and i put my finger in the coolant and would have expected it to be very hot and it was more like 65 so gonna change that for a genuine vw one toady as euro seem to be selling crap parts these days and the dealers didnt have one in stock whitch would suggest its vr6 specific and would not be suprised if euro are supplying a generic :cuckoo: one.

can anybody give any clues as to why my corrado vr6 wont start when it gets to 80 degrees it just turns over but wont fire unless i let it cool a little, it starts ok on (second) attempt when cold and revs and drives fine until it gets to 80 degrees then drives rough and tries to cutout and if you stop and turn it off it will not start until it cools ??? it has no fault codes being flashed up and is getting on my nerves now .its a coilpack engine obd2 its had new plugs leads swapped for original ones coil removed and inspected crank sensor checked aftermarket airflow sensor fitted to cure excessive fuel consumtion and very high emmisions (not sure on this aftermarket sensor though) evap system dissconected new coolant temp sensor fuel filter changed new fuelpump relay on one occassion it would not start and spotted fuel leaking from under the car at the drivers door area but has never done that again !! and checked lines for leaks and all seems ok. any clues would be nice !!! :shrug: