Quote:
Originally Posted by benzborg
Long day w/o much luck lads. I have no spark. Lots of gas.
No spark at all from a removed spark plug, held to the block - nothing....
Very much a let down after a lot of work. Will a car start if the voltage regulator is shot? What else could it possibly be ruling out the CPS for the sake of argument....
|
Don't rule out the CPS. As slk230 says, the CPS will give you the precise no-spark symptom you're experiencing. That's because the CPS tells the ignition system when to spark for proper fuel ignition. No signal, no spark. That seems particularly likely, in view of the fact that you've already swapped known good ECU and coil with no change in symptoms.
As for the voltage reg, I don't think that plays any role, because it isn't operating until the motor is running. You're starting the motor on battery power, not on alternator/vr power.
EDIT: Sorry, the alphabet soup got me until I just re-read the post. I was thinking EZL when I referred to ECU above. My point there was that the CPS works in tandem with the EZL (ignition control unit), so if CPS and coil are both known good but still no spark, the EZL may be on the fritz. There, I think I'm writing what I'm thinking.
