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1999 Chev 1500 PU - 4.8L Died; Runs MAF Unplugged?
Posted: Mon Aug 26, 2013 7:38 am
by Holly
We have a 99 Chevy Silverado 1500 that was towed into shop. Good fuel pressure with volumn & no codes. Unplugged MAF sensor, vehicle starts and runs. Replaced MAF with known good part, still only starts and stalls. Has battery reference and ground at MAF pigtail. Battery positive and 5 volt reference.
Re: 1999 Chev 1500 PU - 4.8L Died; Runs MAF Unplugged?
Posted: Mon Aug 26, 2013 10:03 am
by steven kiser
With MAF plugged in unplug 02 sensors and see how it runs. I've had three do this. For some reason when an 02 sensor shorts on these it shuts down that corresponding bank.
Re: 1999 Chev 1500 PU - 4.8L Died; Runs MAF Unplugged?
Posted: Tue Aug 27, 2013 4:27 am
by Holly
No change....still acting the same way.