p0172 and p0175
my yukon just started running weird, like a random sporadic miss and came up with the bank 1 and 2 rich codes. i havent checked the fuel pressure yet all i had a chance to do is plug in the torque app. my ft'* are like -30 and most everything else is normal i think. i got a couple things to check from searching like the fpr is in the intake and can leak or the injectors same deal.
also whats the maf at idle supposed to be mine was 0 then went up some when you revved it up?
thanks for any info
1998 Bonneville SSE
2007 Monte Carlo LT-KYB, Clarion, Polk audio, Kicker
1999 Yukon SLE-KYB, Air lift, Reese dual-cam, Tekonsha
1987 Firebird-355/th400-nothing stock