Join Date: Mar 2002
Location: Austin, TX, USA
It varies. Basically what they have to do is relearn idle. Sometimes this can happen in one drive cycle. For others it takes two. The engine needs to warm up, it needs to be driven, stopped, parked, driven, AC on...that sort of thing. I don't recall the exact sequence. A friend of mine had a real problem with this. But the reason for him was he had a fresh motor. He'd drive it to the end of his road, think it wasn't acting right and come back and shut it off. Once he took it out and drove it for a few minutes, everything was fine.
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI