oldie eye
NAXJA Forum User
- Location
- sancherito
What besides the CPS is needed to provide spark in an '87 4.0? I have primary coil voltage, and the most maddening intermittent spark. After some major work, I had no spark. I wiggled stuff for about an hour, then wiggled the 4 block grounds for the umpteenth time and got momentary spark. I rewired them, and now have good grounds, but no spark. 2 hours of checking and wiggling and no spark, I wiggled them again and got spark. Now steady ground at the wires (before ringlets) but no spark. 1 hour of wiggling later I got a little spark when I wiggled the head temp sensor wire, now no spark. I have primary voltage, and a new CPS (never even driven on it). I need CPS, ECU grounds, & anything else to trigger the secondary ignition?