ecu fubared???!!!!

[big_G_622]

ok driving my valver quite hard the other day. (maybe revved it up to the red  ) and i felt something go on it. now it wont idle and is just revving on its own - same as a problem i had about 6mths ago. There is also a strong smell of oil which wasnt there before  I have checked all the usual

1. vacuum/oil breather pipes
2. ecu/fuel pump relays
3. i have a new crank sensor/temp sensor in and had a full service done around a month ago.

any ideas?? also i cannot re-set my mfa readings and it will no longer let me connect to VAGCOM (only ecu)

is my ECU knackered?

[Khare]

Why would you say ECU? It's the LAST thing I'd expect to fail.

Have you checked the ISV? Maybe you somehow managed to break that? Try cleaning the throttle body and all the engine earths. Start with the cheap/free stuff 

[Wayne]

I doubt your ecu has failed.

[N900 MJT]

Why would you say ECU? It's the LAST thing I'd expect to fail.

Have you checked the ISV? Maybe you somehow managed to break that? Try cleaning the throttle body and all the engine earths. Start with the cheap/free stuff 

+1 - i would look in the maintenance thread and go from that

[big_G_622]

ok guys - this is a problem i thought i sorted. i have changed everything in the last 6 months. i have redone all the earths including wires star/split washers etc. they are now far superior to what the car came with!!!

isv i have put a new one in. and have cleaned this week just out of cause.

TB cleaned and new gaskets installed.

throttle position sensor wiring re done.

new lambda probe

new crank sensor

new ecu relay

new fuel pump relay

new coil

new rotor arm/dizzy

all breather pipes renewed.

I have exhausted just about every option. and have been through the maintenance section with a fine toothcombe!!!

the reason i think it is the ecu now is it will no longer connect with vagcom. mfa setting are stuck and wont re-set - this is even after trying to reset the ecu.

any suggestions of anything ive not tried welcome?? chances are i have already tried even if not mentioned above!!!! 

cheers

[dragongreengolfgti]

is it smoking at all ? maybe you've damaged an internal part i.e valves, stem seals or maybe skipped a tooth on the timing belt?

i know its a different car but once i bent one of the cam shafts on my renault 19 16v due to giving it to many beans in the end it snapped the pully off and the crank side ablitterated! wish i had a picture of it most people wouldn't believe it.

[big_G_622]

no smoke - internals all look good. oil/coolant clean. will try and check the timing at the weekend though!!

[Khare]

Does the idle stabilize if you put the inside heaters on max speed?

[big_G_622]

Khare no i tried that - i saw one of your previous threads. i have recently changed my coolant temp sensor so don't think that's the problem??..........unless your were thinking of something else???

[Wayne]

Does it still smell of oil.