Update.
Thanks for replies.

Got the Boost and EGT gauges in.
Boost and EGT is ok.
Fuel and Oil filters changed.
No oil leaking.
ICP is on valve cover not under turbo.
No engine check light.


I bought the AE program to scan codes.

I got a P2285 for the ICP Sensor Circuit Low volt.
Cleared the codes.

I moved the wires and plugs to see if bad connection for the Banks and computer plugs.
The P2285 did not show again.

My son made a 250 mile trip, NOT TOWING Trailer, and he said he did not feel the miss at all. But I checked for codes when he returned and it has a P1378 for FICM low voltage and B1352 for Ignition Key-in Circuit Failure.

Does this mean to replace the FICM or ICP sensor or another underlying problem to cause this?
If replaced, how do you program the FICM, Dealer only?

And the B1352 problem?

Thanks,
Walt