Header package install. Need advice.
Thread Starter
Safety Car
Joined: Jun 2004
Posts: 4,968
Likes: 529
From: Witness Protection Program Somewhere, USA
2026 Restomod of the Year Finalist
Header package install. Need advice.
Installed LT's, free flow cats, x-pipe on my 04 MN6 three weeks ago. Nice power and sound gains. Now 350 miles later I get a check engine light. Checked codes and only active one, I think, is P0430 H C which is "TWC System Low Efficiency Bank 2". Anyone know what that means and would it trigger the light?
What's the best action, other than taking it to a dealer? Can a tuner eliminate this condition and will it prevent it from happening again?
All experienced advice will be greatly appreciated.
What's the best action, other than taking it to a dealer? Can a tuner eliminate this condition and will it prevent it from happening again?
All experienced advice will be greatly appreciated.
Team Owner
Joined: May 2005
Posts: 23,682
Likes: 9
From: Flagstaff Az.
Header question
Just had the entire exhaust system changed. Drove about 200 mi. before taking car to tunor. Even tho the car had thrown no codes he said it would exentualy so he deleted the two after cat sensors.
