|
Usually if you bring the rpms up at idle to about 2500-3k (No vacuum in motor) and your o2 readings come down to desired value, that indicates a vacuum leak. Not saying its the case here, just something to test.
IAC position seems high, iirc around 30-40 at idle was desired. Is it an aftermarket throttle body? Intake manifold? Try doing an IAC reset and see if anything improves there.
I'd say clean the MAF for ****s and giggles. Stock cars, the motor displacement roughly equates the grams/second flow rate. Never looked at a modified car and I'd assume it would flow more, just something I noticed.
Smelling rich and having lean codes present doesn't make sense to me. Wonder if you are having ignition issues. The o2's seems to be switching, we want to see the voltages swing from under .5 volts to over .5 volts. They are constantly helping to adjust afr.
|