Whats up HT. got a buddy with a 99civic si all stock except intake and exhaust. has around 50k miles on it. car has been taken care of. He's having a problem with it misfiring. its throwing 5 cec. 4 of them for cylinder 1, 2, 3, 4, misfire and a 5th code for multiple misfire. spark plugs have been changed as well as plug wires and rotor. kinda stumped on this. i'm thinking its something in the distributor maybe going bad. any input would be greatly appreciated. thanks

 

Resistance test the coil. If it's fine, have an auto parts store test the ICM.

 

MAKE SURE YOU HAVE THE FIRING ORDER RIGHT.

 

Firing order is good. Thanks for the input.

 

Resistance test is good. Gonna have to get the icm tested.

 

What were your readings. Did you subtract the background resistance of the meter for the primary winding measurement?