Pcm ground

[Darrenmb]

Yes, you already posted that, everything looked good, I have been back through all the wiring and everything looks to be ok, no open wires, everything grounded as it should be. My current line of thinking is the pcm or opti. I put opti back on and tested again at icm and get 0.02 as the highest spike, however although i hear the injectors pulsing when spun by hand, when opti installed I obviously cant hear them due to starter cranking (i have no helper, wife wont even go in garage) but scan 9495 says I have no injector pulse width..
I will be sending opti back to the ebay guy as he will check it all out. Its currently my only option that doesnt involves throwing money at it...

[Darrenmb]

Ok small update, this time I hooked up laptop before anything else, and when cranking for first time I do have injector pulse width, but only for about 5 seconds then it goes away, inwould assume that's about when pcm sees a no start and cuts fuel.. but that's just an assumption..
Any feedback on that??

[Injuneer]

You keep mentioning the “pulse” and “spike” on the white wire. Have you ever actually measured the AC voltage with the engine cranking, as recommended several times?

[Darrenmb]

Yes, as mentioned in above post, ac volts while cranking are 0.02

[Darrenmb]

Sorry, hit send too soon.. 0.02 volts is as high as it goes which is why I said spike.

[Z28pr0jekt]

I didn't go back and read the whole thread but to confirm, the car isn't activating the security is it? I had an issue where the chip in my key was loose and sometimes when I went to start the car, the security light would activate and lock the ignition from activating for about 10-15 minutes.

[Darrenmb]

Vats is disabled in pcm, this is an engine swap into 83 jaguar.

[Injuneer]

At this point, it's beyond my ability to resolve. If you want to run a Scan9495 log showing the startup attempt, in .csv format, I'll see if there is anything in there that points to the problem.

[Darrenmb]

Thanks,, getting ready for a wedding now, will have to create the log tomorrow.

[Darrenmb]

I have emailed the file to you, assuming of course your listed email.here is still current