EFIDynoTuning Forum

Looking for a custom tune for my 2012 F150 need to turn off rear 02s. Have the pre-configured 87 octane tune from SCT X4 installed.

I keep getting a P0103C CEL. Had my independent mechanic look. We replaced 02 sensor twice (both motorcraft, 2nd time under warranty). Took to Ford they suggested a new PCM (but wanted $1200 installed). Installed and KAM reset myself (was really easy with pre-configured VIN number PCM). Checked and cleaned all grounds including the notorious body to frame ground(s).

I have tried everything. PCM replacement (per Ford's diagonoses), New post cat O2s, tested and retested new 02, changed back over to chevron gas, cleaned grounds, etc. I guess my cat maybe not perfect but at this point with Texas no longer requiring emissions testing unless in the major city counties I just need to buy a custom tune and tune the rear 02s out if someone on the forum can tell me how much for an SCT X4 email tune.

Thank you.