[Solved]Spark Issue possibly ECU?

[MySupra]

So today I bought a multimeter to test out the harness and I found that it was not reaching the CPS but everything it had around 11-12+ so I tracked down all the 3/4 wires that go from the CPS to the ECU. I tested the 3 spots in the ECU and both gave me the results 0.01 in other words 0. So that has brought and simplified the problem, I believe it's something of the following.

- Bad ECU
- Bad CPS
- Bad Coils
- Bad Ignitor

Not sure what to do next any ideas before I start buying these parts?

By the way, I checked all the fuses and all are fine they light up my tester.

1989 Supra Turbo - 7M-GTE

Update: It was the CPS.

 

[jetjock]

I don't understand how problem has been simplified. In fact I don't understand the problem at all. More information is needed. At this point I would not be buying any of those parts.

 

[MySupra]

Car has no spark, was tested the harness with a delimiter. What's not to understand? Ignitor had current, CPS did not due to the harness that I traced all the way back to the ecu and the current for those 4 wires were 0.01

 

[mkiiichip]

I know I am going to regret posting in here......but,

The CPS creates its own voltage signal, once it begins to spin.

 

[jetjock]

...What's not to understand?...

Of course. Silly me. Instead of the delimiter try using a time domain reflectometer. If it shows the wiring is good then buy all the parts you mentioned.

 

[MySupra]

@jetlock
Did not mean to sound offensive, sorry if I did.

But would the CPS not have current though if the harness is not delivering the voltage to it?

 

[3p141592654]

V = ir

 

[MySupra]

This problem has been fixed, it was the CPS.

 

[mkiiichip]

So the blind squirrel sometimes does find a nut.