My 07 hummer ran and drove great, I pulled both pcm1 and pcm-b fuses out and left them out for 15 minutes, after putting them back in , my hummer will not start, it cranks but will not fire. Any help?

 

Welcome to HF.

I moved this to the H3 section, which is where questions about H3s go. Crazy like that.

It would appear that you created the problem, so review what you did again very carefully. Have you made sure the fuses are good, in the correct location and properly in place?? You pulled #21 and #25, the spot for #26 is an empty (spare) .... could you have moved it over one spot by accident?

The fuse block diagram in the lid is upside down, but you probably knew that.



What would be the reason to pull those fuses to begin with?

 

Probably need to do security relearn(pass-lock).