I'm roush intercooled and it threw a check engine light not long after I got it back. Codes are po 351-358; dealer says its showing primary circuit coil failrure. They are stumped. Can't be all coils or the thing would not be running and missing like it is. Wiring loom problem? PCM? I 'd appreciate any input from someone with knowledge. Thanks

 

Was the roush installed by the dealer? Or did you do it by yourself?

 

Had it done at a well known tuner 3 hours away in Jackson, MI, Paul's High Perfromance.

 

I would take the truck back to Paul's High Performance And let them deal with the issue If FORD cant solve your issue Paul's should Iam 53 years old I had and owned a lot of MUSCLE CARS in the 70s I did a lot a things to a lot of motors that i cannot do to the newer motors In the 70s it was plug & play NOW in the late 90s & 00 Its Plug & Pay Iam sorry i cant help you But i can give you some advice