Thank you and I will have a look and see. It is very odd as it does act as an IAC issue but as I said no oil light and it is not physically dropping as much as the Tach shows. Never had this before, but other than that it is fine in the 98" flavor I am running.
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Originally Posted by nmandic
LAF, I am still tuning this one. My engine doesn't stall any more however after very heavy run the RPMs go down significantly. I have never had oil light on so I don't know whether our problems are of smilar nature.
I have attached my ET and Time Based IAC Start Adder Tables for your comparison (if that helps at all). As indicated in TCFI Idle Tuning Note: "If your table values are too high, excessive time based compensation may educe the IAC value below the nominal idle IAC value. In this case, when the engine returns to idle for the first time, RPM will be below the idle RPM set point. The engine may even stall before the idle RPM control loop has a chance to recover."
You may try to reduce all cells of your Time Based IAC Start Adder Tables for say -10% and see what happens. If the engine starts reving too high when you stop (after a ride) you may wish to go back for +5% and see whether that helps (at least that's what hapened to me. And one you finish then go back to IAC and check that it is still around 35 mark. I don;t know whether this helps and/or works but this is a kind of process I am going through.
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