choate
Well-Known Member
- Joined
- May 22, 2015
- Threads
- 22
- Messages
- 394
- Reaction score
- 161
- Location
- Fort Worth TX
- Vehicle(s)
- 2018 GT A10 401A with Active Exhaust
Been through this before. Do you have a mid pipe that's larger than normal or a cat back? you may not believe it but that right there is enough to cause your problems. been through it. the ONLY thing that worked is go back to complete stock. even with the stock tune the car would not set ready the heated and 02 sensors therefore it would not pass. shop kept telling me the mid pipe you have shouldn't matter (i had an after cat 3" mid pipe) but I said can you swap it out and see for the stock H pipe. This was on a 2012 5.0. I'd say within 20 miles they were all green and "ready".Same issue and Lund isn't much help. All my monitors are fine except O2 and HO2. My exhaust is stock. This is frustrating beyond belief and can't get my car to pass emissions.
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