[combsp]

Hey I'm new to this forum. Hope I can resolution to this problem.

My 4 cyl on the primary coil has 2 dead towers. I switched the front to the back and the problem follows which tell me the problem is the ICM or beyond. I bought this car from a guy who was well meaning but knew nothing about DIS systems.

Can you check the ICM. He apparently replaced the timming belt so could he have messed something up like the CPS and its following it all the way through to the plug. Need help.Thank you.

[b_chandler]

You can have it tested at the local auto parts store. If it tests good the first time, have them run the test several times to build some heat in the module. They tend to fail more when they're hot and that doesn't always show up during one short test.

[1979CobraStang]

have the same prm no fire rr coils put 3 new molders and the crant sensor rr the computer cant get it 2 fire i dont now what 2 chang 2 new coils 3 new molds 2 cran sensor 2 new computer i need help the car was ruing but would stard missing half power ,then it would run on all 4, then it stoped.firing man i need help ,about 2 shot it lol if some one can help thank and a new fule pump thax

[turboeeyore]

^check your wiring. it's quite possible a wire has been corrodid and fell out or mice chewing on it. after that check for power at all your fuses and fusable links. have you tried changing the mass air flow sensor or barrometric pressure sensor?

[turboeeyore]

as for COMBSP it sounds like a module. the module sends a signal to the coils when to fire, if it's doing it on the same bank with 2 different coils it's just not getting the signal to fire. like CHANDLER said, a good parts store can test it.