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
2012: ARP headstuds, OEM gaskets, standpipes and dummy plugs
2015: XDP coolant filter