ID this muffler

[Cooter]

The Buelltooth won't fix it by installing a new fuel map with ECMDroid, but it should be very helpful to diagnose that possible bad fuel pump.

I'd still recommend a pressure testing kit to check the FP directly.

 

[Tbone]

Thanks Cooter. Received the Buelltooth and there are no errors or history. Turned OFF the speed-based fan, so now fan runs normally! AFV front stays pretty much at 100 and the rear changes from ~89 to ~102. I think all is Well! Also saved an EEPROM file. Next payday will get the FP Test kit. Thanks again.