I got a P1350 P code so I replaced the coils and the ICM but the code came back again. Any suggestions?

Question

I got a P1350 P code on my Buick. Replaced all coils and ICM but code came back. What next.

Answer 1

HI there

I would check the wiring to the ICM it's possible there is a problem with the wiring harness to the computer causing the issue. I might also try a different ICM as you might have gotten a bad one, especially if you went aftermarket with the part.

P1350 BUICK - Ignition Control System

Read more: https://www.autocodes.com/p1350_buick.html