My 91 loyale (ea82) isn’t getting spark from the coil. It’s a new coil, new disty, I’ve replaced the ignitor and the bracket it’s attached to, checked my grounds. I have Frayed wires in my harness tho that I wrapped awhile back could this be the reason for no spark? If so could someone please tell me where this wire goes and if I could just re run 4 new wires in its place ? 

For the wires I would just repair them.

 

You mentioned that you have a new distributor.  Are you sure you installed it correctly?

 

Good luck,

Sam

@somick I believe I installed it correctly, if you mean marking the button where it’s pointing and marking the ears so it’s in time.  And as far as the wires I’ll be replacing it with four new wires tomorrow and seeing if that’s the problem. Thank you for the reply

Carb or SPFI? Cam belts installed correctly?

There could be more at play here depending on what you have. 

Cheers 

Bennie

@el_freddo Spfi , and yes timing belts are fine no teeth stripped, button in the disty spins fine. And it’s getting plenty of fuel pressure and fuel to the injector. It’s not getting spark from the coil. Thank you for the quick replies ! 

That is a shielded cable, it cab be replaced by a shielded cable of similar design & size.  Not individual wires.

Are you getting 12V on the + side of the coil?

 

@somick @DaveT

had a buddy come over who knows wiring a little better. Traced it back to a bad ecu. There wasn’t power getting to the ignitor or coil from the ecu. Also noticed that the check engine light wasn’t coming on at all when I turned the key on. Took the ecu apart and found 3-4 diodes burn up, run a jump wire between one of the bigger diodes near pin 27 and the check engine light flashed on. I will be ordering a replacement soon and posting the (hopefully successful) update. Thank you guys!  

@somick @DaveT @el_freddo  
 
Hey guys, I’m having trouble finding the exact ecu for my car? It’s probably my ignorance, but does it have to match serial numbers exactly? Or can I get one off eBay for the same year but with a slightly different serial number? Thank you for the help 

If the case looks the same as yours, it should work....  I did discover that there are at least 2 versions - but I don't know what years they were from.  Most of the ones I have look the same, 2 have a different metal case, slightly different wiring.

@91loyaleman - we didn’t get the SPFI over here. 

Any that are here are imported setups from the states. 

Cheers 

Bennie

Red, white, black shielded on a SPFI is the air flow meter. It should be throwing a code related to that. Possible it fed 12V back though the signal wire and fried the input on the ECU or the sensor. I would check the voltages at the sensor. With the key on you should have 12V on red, 0V on black, and half a volt on the white wire. Blowing some air though the sensor should make the voltage rise.

Edited December 7, 20205 yr by Ionstorm66