Quote:
Originally Posted by TurboBob
because the airflow is really low at that RPM, the ecu thinks you are decellerating. and leans out the fuel. If it is troublesome, you will have to richen up this spot.
your idle appears too rich, the O2 trim dives to its minimum to try to correct the problem, and since it is still rich after about 10 seconds, it gives up.
Try leaning the idle out some.
what are your regular trims reading? Remember, trims do not read straight percent, they read 4X of the actual fuel correction. So for a trim of 80 the ecu is pulling about 5%
Bob
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My lo and mid are 81.2%......Hi is 98.4....the mid was in the mid 90's recently, then went down for some reason....how do you suggest I lean the idle? By lo load RPM or MAF g/sec? Currently my idle is just running off the -36 mainscale for 560cc injectors....