Looking for custom tune SCT X4 tune for 2012 F150 5.0

[2012FX4]

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.

[decipha]

http://www.efidynotuning.com/remote.htm

[red5.0fogger]

isn't the p0103 for the mass air sensor?

[decipha]

yes

you need to get the mass air code gone before you can tune it

[BOOSTEDEVERYTHING]

Most likely a wiring issue or just a bad or very dirty Mass Air sensor. try this test....