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Old 08-13-2019, 08:21 AM   #3 (permalink)
Rvn4me
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Join Date: Jun 2016
Posts: 2,148

Your signature says 04 so are you posting in the wrong generation? Do you have a LB7 or LLY
It is very rare for a FICM to go bad on a LLY engine LB7 yes -- shorted wires on the FICM bracket-very common.
When a fuel injector circuit condition is detected by the FICM, all of the fuel injectors on the affected ignition voltage circuit will be disabled.
If a circuit condition is detected on a fuel injector circuit for cylinders 1, 4, 6, or 7, DTCs P0201, P0204, P0206, or P0207 will set, along with DTC P2146.

https://www.dieselplace.com/forum/63...-problems.html
https://www.dieselplace.com/forum/63...r-problem.html

Proper way to check balance rates
https://www.dieselplace.com/forum/63...nce-rates.html

Bad injector won’t cause limp mode but P2146 will

Last edited by Rvn4me; 08-13-2019 at 08:40 AM.
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