1997 GMC C1500 please help

BATMAN13

MEMBER
1997 GMC C1500
6 CYL
2WD
MANUAL
193,000 MILES

I don't think my truck is getting enough fuel or air flow i've been told it could be sensors but I don't really know I have fault codes but I don't know what they mean they are p0171, p0174, p0300, p0420, p0507

Tuesday, August 26th, 2008 AT 2:49 PM

1 Reply

BADBO

MEMBER
35 POSTS

Po300 is a missfire code, 171 & 174 or 02 sensors codes, 420 is Catalyst System Low Efficiency (Bank 1),
507 is Idle Speed Too High. I would fix the 300 code first which is the plugs and wires. Hope this helps.

Badbo