I having problem getting the trailing plug to work. Then were working before. I had to remove engine from blow coolant seal and when Put everything back in trailing was all messed up. I had to unhooked because it was causing major spark knock. I gave up on it for awhile. I do want to use so I tried to hook it up again, now I get nothing. There is power at the coils, grounded good all wires seem to be hooked up right. Led are on but don,t seem to be blinking when car is running. I have tried putting in different coil and using another ms ecu and nothing worked. Only thing no changed were plug wires.

 

Please send an MSQ...

Also, check to make sure that the transistors that turn the LEDs on and off are not burnt out. If the LEDs aren't blinking (but they're on) the only likely causes are bad settings or a wiring issue fried something in the MS (the transistors are the only thing I can think of that would cause this, but it could be something else).

This could cause no trailing, or if the trailing coil select signal (middle LED) wasn't blinking, but the trailing IGt signal was working, you could get knock.

Ken