2006 Chevrolet Trailblazer Mis Idle Load First Giving Po301 Replaced Plugs Now

2006 CHEVROLET TRAILBLAZER
120,000 MILES
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OZARKIE
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Has a mis at idle or load. First it was giving po301 then i replaced the plugs. Now getting po306. Also had an po106 but replaced map sensor and that went away.
Dec 16, 2012 at 1:02 AM
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ASEMASTER6371
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did you gap the plugs??

Roy
Dec 16, 2012 at 1:03 AM
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OZARKIE
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Was told by store iridium plugs were factory gapped
Dec 16, 2012 at 1:05 AM
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ASEMASTER6371
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could be a coil failure as well. have them checked.

Roy
Dec 16, 2012 at 1:07 AM
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OZARKIE
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Bought 1 new coil and tried it on all cylinders but responded the same on all 6.
Dec 16, 2012 at 1:09 AM
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OZARKIE
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Any other ideas.
Dec 16, 2012 at 1:17 AM
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OZARKIE
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Any other ideas??
Dec 16, 2012 at 2:26 AM
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RASMATAZ
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Check no.6 cylinder compression, injector and no.6 wire resistances
Dec 16, 2012 at 3:36 AM
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