Hey guys
ac delco iridium at $9 each gap is .44
or
ngk iridium xl at $9 each gap is .43
Question whats a better plug on a 07 hummer h3 with the 3.7 and why are both plugs show for the vehicle but different gaps.?
Next heres a missfire issue
not so perfect idle.Well its fine but if i give it gas then left off the gas the rpms drop and go very low then stumbles then evens out and runs fine but i had shop hook up to computer and there was a couple codes since last time.
P0300
B3152
Also the live data shows cyc 3 missfire and when you press the gas and let go cyc 3 will give 3 or 4 missfires and cyc 2 and 5 show 1 but then dissapears and then all cyclinders show none and then after couple minutes cyc 3 will show again and after 10 minutes of running there was 16 on cyc 3 and 2 on 5.
Could this be cause by dirty throttle body?
I have changed battery terminals and enhuast manifold gasket and welded crack.
spark plugs were changed a couple thousand kms ago due to random missfire. i checked and these are the plugs that were used [h=1]12625058 ACDelco Iridium Spark[/h]
Any ideas?
07 hummer h3 with the 3.7
ac delco iridium at $9 each gap is .44
or
ngk iridium xl at $9 each gap is .43
Question whats a better plug on a 07 hummer h3 with the 3.7 and why are both plugs show for the vehicle but different gaps.?
Next heres a missfire issue
not so perfect idle.Well its fine but if i give it gas then left off the gas the rpms drop and go very low then stumbles then evens out and runs fine but i had shop hook up to computer and there was a couple codes since last time.
P0300
B3152
Also the live data shows cyc 3 missfire and when you press the gas and let go cyc 3 will give 3 or 4 missfires and cyc 2 and 5 show 1 but then dissapears and then all cyclinders show none and then after couple minutes cyc 3 will show again and after 10 minutes of running there was 16 on cyc 3 and 2 on 5.
Could this be cause by dirty throttle body?
I have changed battery terminals and enhuast manifold gasket and welded crack.
spark plugs were changed a couple thousand kms ago due to random missfire. i checked and these are the plugs that were used [h=1]12625058 ACDelco Iridium Spark[/h]
Any ideas?
07 hummer h3 with the 3.7
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