hey guys, this is my first post, definatley not the first time ive been on the forum though...been pouring over all the hundreds of posts on G60's not idleing well and stuttering and hesitating....
I bought my first g60 4 weeks ago, a really mint looking one from my boss at work, however its turned out to be a whole host of trouble. so far ive had to replace the clutch master cylinder, fit a jetex exhaust, ive had the front engine mount snapp and the engine hit the bonnet (which has ruined a bonnet that was resprayed 3 weeks ago) quite alot of work for a car ive not had that long.
the main issue ive had is now and then the car will hesitate at low throttle, and then suddenly fly past 2000 RPM. i thought it might have been a fuel pressure regulator issue so i changed that (i didnt suspect a lambda sensor fault as it has just been fitted with a new one)
the problem then started to get really bad, and it felt like that car was loosing 2 cyliners at certan points when returing to idle making it undrivable. because of this i splashed out and purchased a new dizzy, Co pot and knock sensor. fitted them all today and the car was still rough. when trying to set the timing the engine nearly died everytime i unplugged the blue coolant sensor (having read some ware before that the digifant can only compensate for one buggered sensor) this made me believe i still had a fault someware. after lots of poking with a multi meter i found that the signal for the lambda to pin 2 of the ecu plug was very intermittent, some times it was good, most of the time not, which would make sense with the running issues ive had (IE mostly cutting out when the car is being driven (wires moving around) and only when the car is hot).
anyway ive done a repair on the lambda and i can now unplug the blue sensor and the engine is still revable (meaning to morrow during the day i can set the timing.(i hope)
what i wanted to know is the idle is bang on 1000 which is a bit too high, will i have to ajust the co pot to get a certain resistance across pins 1-3? its come straight brand new from VW. i meansured the current resistance which is just over 1000 ohms. should i ajust this?
also calling all digifant gurus does it sound like im on the correct track? (ive checked all vaccum leads and ground points also)
sorry for a HUGE first post. i just needed to vent my fustration and hopefully be told im doing things logically and getting results...my girlfriend doesnt have a clue you see.