I had the O rings and copper seals replaced on my IP. The engine was running perfectly prior to this maintenance; now the engine has a rough idle, but only after it warms up. The rough idle goes away if I turn on the A/C or place the car in drive. Someone suggested it might be a sticking idle air by-pass valve. (I don’t know where that is)

Also, does anyone know where to find schematics, technical and training information for the Injector Pump

Any help would be appreciated.