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.
Looking for custom tune SCT X4 tune for 2012 F150 5.0
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Re: Looking for custom tune SCT X4 tune for 2012 F150 5.0
isn't the p0103 for the mass air sensor?
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'19 F-150 3.3L
Re: Looking for custom tune SCT X4 tune for 2012 F150 5.0
yes
you need to get the mass air code gone before you can tune it
you need to get the mass air code gone before you can tune it
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- Vehicle Information: 1999 Ford Ranger with 2000 Explorer v8 swap, FLN0
2003 Ford F150 Harley Davidson, Built 5.4L SOHC with 3.4L Whipple and Built 4R100
Re: Looking for custom tune SCT X4 tune for 2012 F150 5.0
Most likely a wiring issue or just a bad or very dirty Mass Air sensor. try this test....
- Attachments
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- Pinpoint test DC_Mass air flow.pdf
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