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have 2007 h3 its stalls 7 out of 10 times at stop lights . on 2007 Hummer H3

I just changed plugs and wires , oil change an air filter, any ideas ?

Asked by for the 2007 Hummer H3
is your ck eng light on? if so scan codes and post so we can adv
1 more answer
have it scan tested for codes
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