#ficm

I've got a good one so the silverado 05 2500hd duromax won't run with the ficm bolts connected to bracket however when I remove the bolts it runs but it's in limp home mode where it won't go over 40 or 50 miles an hour and cuts out under acceleration. When I push on the ficm unit while the truck...

Okay I got a good one ,when my ficm module is bolted down in the bracket truck will not run. When I unbolted the three bolts and remove them it runs but it will only go 40-50 miles an hour and it cuts out under acceleration and load,Also when I press on the ficm with engine running it dies...