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#1
09-04-2012, 04:40 AM
Hummer Professional
Join Date: Sep 2008
Location: Utah
Posts: 293
Re: P0302 Engine Code
Nope, double checked everything when I did the headers. just to make sure. Must be a damn ghost living in there or something.
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Sweet looking H2 with not enough mods (2003 Pewter H2, 20" Rockstars, 40"x15.5" Toyo MT's, E&G Extended Flares, Full body tube steel exoskeleton, 5" Skyjacker lift, Amp Research steps, Gobi Roofrack and ladders, Smoked LED's, AFe CAI, Dynatech long tubes and cats, Magnaflow exhaust, Stock tune, 4.88 gears, Chrome Grenade Shifter, interior blacked out, rear captains chairs, Solar Power!!)
#2
09-04-2012, 09:23 PM
Hummer Authority
Join Date: Sep 2003
Location: Canada
Posts: 1,251
Re: P0302 Engine Code
Low compression, sunk valve seat, carbon build up on valves, excessive leak down in that cylinder, weak lifter
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1987 Jeep YJ 403hp sbc 653hp on NOS
1998 Chev Z71
2007 Chev Trailblazer SS
#3
09-05-2012, 11:25 AM
Hummer Veteran
Join Date: Aug 2009
Posts: 68
Re: P0302 Engine Code
I had the same issue few years back turned out to be dirty injectors on numbers 2 and 7. I Replaced those 2 injectors cleaned a bunch of sand and debris from the fuel rail and all was well.
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2005 SUT Used and Abused, you name Ive broke it!
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