tech support

I changed my pcm and now I get a new set of codes thrown by the pcm would you guys be able to help me fix this?

my speedometer doesn’t work but every other gauge does on my 99gt cluster my car was a 2004 v6 swapped with a 99gt everything I don’t know how to fix this speedometer problem my obd2 read the car is going 17 kph max even when we are on the highway

Hey all! Installing my new pacesetter longtube headers on my 2004 3.9 manual trans. I have the drivers side installed. The passenger side states to unbolt the trans mounting bolts and slide it left, but the header still hits the frame and the trans. I pulled the starter out of the way and its...