So here is the scoop, i have a '92 SC the motor had a bad bearign in the bottom end, i got a good deal on an 89 SC with rebuilt motor but a bunch of other problems with the car, I swapped the 89 engine into the 92 using the 92's exhaust manifolds, wiring, and other bits from the 92' to make the engine work fine in the car.
So the engine more or less runs great except it randomly makes these popping noises that feel like they are coming from the mufflers!?
Under WOT at high RPM the engine bucks and i can visibly see the boost gauge bucking with it to some degree, this only happens at high rpms, i can give it good throttle lower rpms and it boosts and goes fine happens at about 4300-4500rpms+
I'm suspecting possible bad injectors or a DIS module!? The car has brand new; cam sensor, idle air control valve, throttle position sensor, plugs, wires and an accel coil pack.
Whats going on and any thoughts on direction to resolve these issues!? Many thanks in advance for the help.
So the engine more or less runs great except it randomly makes these popping noises that feel like they are coming from the mufflers!?
Under WOT at high RPM the engine bucks and i can visibly see the boost gauge bucking with it to some degree, this only happens at high rpms, i can give it good throttle lower rpms and it boosts and goes fine happens at about 4300-4500rpms+
I'm suspecting possible bad injectors or a DIS module!? The car has brand new; cam sensor, idle air control valve, throttle position sensor, plugs, wires and an accel coil pack.
Whats going on and any thoughts on direction to resolve these issues!? Many thanks in advance for the help.