tech ideas
hey there,
if check engine light comes on when running rough, check this:
you said you had changed plug wires then it ran well for a minute, the problem is in your ignition. Just mentioned some advice to another member as to checking the crankshaft damper and clearance on crank position sensor (PIP) if either are out of sync, timing may be delayed or prefired, depending where the problem is. Just redid the engine on my stock '90 (right then the motor mounts were easy). Recently had crank damper problems, now it's somewhere in the coil, but at least it's running quite well now.
They're right, only parts from FORD, matched to the car, or your on board computer will not read the right pickup signals, then it's back to square one.