C7 Headers Ported Int/Manfold Lean?
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Burning Brakes
Joined: Jun 2012
Posts: 1,029
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From: NJ
C7 Headers Ported Int/Manfold Lean?
I installed Mid length headers with hi-flow cats, Titanium Akrapovic X-pipe without cats, ported Intake manifold & throttle body and a AFE air filter. I put 50 miles on the car without a tune and so far no check engine light. I do have a HP MPVI2 tuner and plan to tune it.
My question is, will it run lean without throwing a code?
My question is, will it run lean without throwing a code?
Last edited by phantom1; Oct 2, 2018 at 10:52 PM.
How are you going to tune without knowing the AFR?
Thread Starter
Burning Brakes
Joined: Jun 2012
Posts: 1,029
Likes: 88
From: NJ
Thread Starter
Burning Brakes
Joined: Jun 2012
Posts: 1,029
Likes: 88
From: NJ
From what I understand, it would have to run over 6%-25% leaner to throw a check engine code.
Last edited by phantom1; Oct 5, 2018 at 08:33 PM.
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