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#1 |
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CODE P0307
I intalled my headers and I have had them on with no tune for about 5 months I am now going to get a tune. Before the tune I went to see all the codes and I got P0307 which is my 7th cylinder misfiring any clue on how to fix the car is basically new has 28k miles and is 2012.
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#2 |
![]() Drives: 2014 white z28 Join Date: Apr 2019
Location: Washington
Posts: 177
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New coil ??
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DGK’s Z’s
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#3 |
![]() Drives: 2012 IOM SS/RS Join Date: Sep 2017
Location: Georgia
Posts: 92
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Since you’ve been in there installing headers, first thing I’d check is the spark plug wires to make sure they’re all seated properly.
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#4 |
![]() Drives: 2011 SS (Sparrow Spearer???) Join Date: Aug 2013
Location: South of OKC, OK
Posts: 707
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so have you been running with a flashing check engine light all this time or did it just come in? a misfire condition makes the check engine flash. also, since you installed headers, check to see if your plugs are not cracked
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Black magic woman, don't turn your back on me baby!
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#5 |
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I have been running a check engine this whole time.
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#6 |
![]() Drives: 2010SS Join Date: Mar 2021
Location: Motor City
Posts: 56
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I'll register my guess... #7 plug wire melted and arcing to the header.
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2010SS 6 speed - Hennessey HPE650 Serial #14
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#7 |
![]() Drives: 2012 camaro 2ss rs L99 Join Date: Feb 2017
Location: North Sioux city SD
Posts: 447
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That's where my money is too.
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2012 2SS/RS, L99, no cats/mufflers, Ported intake manifold, fuel rail upgrade, ID1050x injectors, Vmax throttle body, 25% UDP, GPI DOD delete, GPI SS3, GPI cnc heads, GPI – 5/16″ Hardened Pushrods, BTR trunion upgrade, BTR .660 springs, pcv revamp w/dual catch cans, Circle D 3800, full BMR suspension & bushings. ZL1 fuel pump, HPT programmed fpcm. JMS bap, Snow VC-50 methanol setup. custom 4gal methonal tank, vs7875 turbo, FMIC, precision 46mm WG, 50mm BOV, 3bar map, SJM line lock, Innovate SCG-1, Hurst shifter with tap shift mod, ×2 Holley 14" fans Diy E85, Diy auxiliary pump
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