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.
Even held in my hand finally, with care - nothing at all.
Swapped coil and coil wire. My old coil wire works fine in my other car.
Turned into a big waste of time but I don't know any other way to test a coil. Re-checked all my sensors plug-ins and wires carefully.

My meyter shows there is power flowing to the round unit for testing duty cycle at pin numbers 2 and 3 - key in on position reads 3.6V like yesterday. Not sure this tells me anything since I'm sure no diagnostic person.

Swapped FPR, OVP and finally the ECU with battery disconnected. All tne units from the no-start car work fine in the other 300E that starts. None of the units from the working car had any effect on the no-start.

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. I can look at that last. The "rebuilt" a year ago 70A alternator in the no-start car is suspect - if the answer to my question "will it start if the VR is shot" is no - that's where I'll pick up again tomorrow.


I don't know how to test to see if anything is even getting as far as the coil - thus my swapping it out. The two terminals on top - can I use a meter to see if there's anything making it to the coil from the battery/alternator?

If so how? Keep in mind I'm pretty green on diagnostics.

tia