Compression Ignition Addict
Join Date: Jun 2011
Location: Colorado Springs
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I had an IAT related code. Did all of the troubleshooting and it pointed to replacing the IAT. New IAT did not solve the problem...
I went back to re-do the troubleshooting procedure, and I finally noticed that there was a mostly broken wire right at the IAT plug. This connection gets a pretty hard kink - may want to look there. Otherwise you will need to ohm out the wires from IAT to PCM to see if there is another wiring issue.
2005 F-250 6.0L, crew cab, long bed 4x4
completed in 2011: STC update, new IPR, BPD EGR cooler, oil cooler rebuild, 6.4 banjo bolts, blue spring update, SCT X3, Insight CTS, 58V FICM, CCV Mod, DIY coolant filter (now gone), refinished turbo
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2012: ARP headstuds, OEM gaskets, standpipes and dummy plugs
2015: XDP coolant filter