big problems

[HellOnWheels]

If the coil pack bracket is not making a good ground will cause an intermittent miss. I ran a wire from one of the coil mounting plate studs over to the ground connection on the firewall and miss went away.

HellOnWheels

 

[v8etr]

it doesn't have a check engine light, I have traced almost all of the wires in the engine comp. I will finish those and then check by the computer. and I will run a wire from the module bracket to the other grounds.

keep the ideas coming