[jungspike]

Thanks for the help Sal.

I did verify WOT operation with a volt meter, so I saw the resistance change from infinity to zero, but I will crack it open and clean it. Can't hurt.

What you said about the O2 sensor impacting my dead cylinder test makes sense and I should have thought about that. Darn it!

Since my car is only lean at partial throttle and idle, my (current) problem is the lean AFR while the DME is in closed loop. I guess my real question is: Can I use the variable resister on the Autothority MAF (which simulates the intake air temperature signal) to adjust my AFR. This resister can be used to lean/rich mixture. However, I am afraid to adjust it because I do not want to mess up my full throttle AFR which is finally at 13.0. I have read on this site some guys changing the resistance and then getting misfires/detonation at the top end. Should I treat it like the mixture adjustment on the stock flapper box? I have it set at 2200 Ohms, but some have set it to 900 Ohms.

Tim