Bambang |
06-23-2007 10:42 AM |
Idle/starting issues...1994 100 2.6L V6
G'day, am new here so bear with me......own a 1994 Audi 100, 2.6L V6 (ABC engine) with 140,000km on the clock.Recently had injectors serviced,new seals and replaced idle-control motor (on the throttle body),also had one cracked injector so replaced it with second-hand item( couldn't source a new one here in Australia at the time). The idle-control motor was also non-Audi ( GM Holden item was fitted by local mechanic who said it fitted perfectly). A month later(and with the onset of colder weather) I'm having cold-start problems....takes a few goes before it wants to fire up...but always eventually starts. Secondly, the idle is staying high( like warm-up mode)@1500rpm for a long time and pulsing; even when the idle is at normal about 700rpm there is still a pulsing of 100-200rpm either way. AND... when driving or accelerating then lifting off the gas the revs won't drop for a few seconds then drop abruptly...really noticeable. Anyone got advice....could it be a vac leak? ecu issue? is there a cold-start valve or warm-up-regulator like on my old 100CD 5 cyl? Sorry for my ignorance....haven't had this car very long and have no manual or knowledge about code-reading. Any hints would be much appreciated.
|