Quote:
Originally Posted by TurboBob
it sounds like the ecu is entering lean coast-down mode.
what are your trims (all of them) doing when this happens?
Bob
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Ok - here's what happens:
Car warm, I elevate idle by pedal up to 2000 or whatever....AFR goes to 17-19,
short term trim goes to 79.6% and stays...as does AFR.
Let off pedal, let it idle down, trim goes to 100% for about 3 sec....then plumets to 32.8% (AFR 11's)...stays there for 10 sec....then jumps immediately to 120% (AFR still 11's).... basically stays there.....this is all repeatable if I elevate the idle, just starts all over....including the times at each event.....ideas??