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**richard2717** · 12-11-2020, 12:10 PM

I put plugs and wires on and that seemed to get rid of the miss at idle while in gear but on the test run the check engine light started flashing like crazy, which it has never done, it was always steady burn on. Got back to shop checked codes and 300 was in there multiple times as well as the 171 &174 codes. Found I did not get one of the plug wires seated good enough on the #2 coil and it popped off which I am guessing caused the 300 and flashing light. Going to go check that here in a few. I also found this vacuum hose that comes off the passenger side of the intake. It is hooked up at the intake but is cut at a 45* angle a couple feet away and just hanging. Any idea where it "should" go? hoping maybe that might be my lean issue?

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12-11-2020, 12:10 PM	#10
richard2717 Equal opportunity joke ofender Join Date: Oct 2011 Location: Eastern Shore of MD Posts: 9,912	Re: 2006 chevy express 6.0 codes I put plugs and wires on and that seemed to get rid of the miss at idle while in gear but on the test run the check engine light started flashing like crazy, which it has never done, it was always steady burn on. Got back to shop checked codes and 300 was in there multiple times as well as the 171 &174 codes. Found I did not get one of the plug wires seated good enough on the #2 coil and it popped off which I am guessing caused the 300 and flashing light. Going to go check that here in a few. I also found this vacuum hose that comes off the passenger side of the intake. It is hooked up at the intake but is cut at a 45* angle a couple feet away and just hanging. Any idea where it "should" go? hoping maybe that might be my lean issue? . Attached Images __________________ Members I have met. Dually Jams, OlBlue60, ScottH, Tommyboy24, Dujobo, Warbucket, 2003 Silverado, Notsolo, my90k5, 6t727t2, Special-K ,Jack_71C10, tabarcus,72blazer_mud_bogger,pwdcougar,RSavage,EricSean,1Rippen6,invicta455,tennaragtop71,arks, Kendal,Bennett68C10, Perpendicular, Chainsawman, McGeesCustomMinis,ShortbedClayton,longblue72,6768chevylover,Tim71,Travisarmenta,Ol' Drippy,fleetmitch,georgieb51,Dave,bcnya2,Dadsburb https://paypal.me/6772GMtruckparts Most women like the strong, silent type… Fortunately for me, my wife prefers the out-of-shape, mouthy type.