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Forum: C4 ZR-1 Technical Postings 12-07-2024
Replies: 18
Views: 14,802
Posted By BaggyToaster
Re: Crank No-Start/Idle 91 ZR-1

Howdy everyone, I would like to post the fix and round out this thread. We received the ECM back from rebuilder on 12/4 and installed it on 12/5. Vehicle started and ran like a top! Rebuilder said...
Forum: C4 ZR-1 Technical Postings 10-22-2024
Replies: 18
Views: 14,802
Posted By BaggyToaster
Re: Crank No-Start/Idle 91 ZR-1

I read your thread right after I posted my latest update. I was skeptical that it would work mainly due to not having any injector pulse. I still ran out and tried it immediately. Unfortunately no...
Forum: C4 ZR-1 Technical Postings 10-22-2024
Replies: 18
Views: 14,802
Posted By BaggyToaster
Re: Crank No-Start/Idle 91 ZR-1

I have finished performing the more advanced testing, continuity and resistance testing of all fuel injection related wiring. All results point towards a faulty ECM. I did notice that the engine bay...
Forum: C4 ZR-1 Technical Postings 10-02-2024
Replies: 18
Views: 14,802
Posted By BaggyToaster
Re: Crank No-Start/Idle 91 ZR-1

I wouldn't label them shady quite yet. We have been in communication with them and so far they have tried to help resolve the issue. The rebuild did come with a warranty. All we can do is give them a...
Forum: C4 ZR-1 Technical Postings 10-01-2024
Replies: 18
Views: 14,802
Posted By BaggyToaster
Re: Crank No-Start/Idle 91 ZR-1

ZR1ecm.com. Sorry I was away for a few days.
Forum: C4 ZR-1 Technical Postings 09-23-2024
Replies: 18
Views: 14,802
Posted By BaggyToaster
Re: Crank No-Start/Idle 91 ZR-1

I will give that a shot. Don't know of any other C4 LT5s in the area but I will be on the lookout. We had the ECM rebuilt so it has a warranty. Thank you very much for the help.
Forum: C4 ZR-1 Technical Postings 09-22-2024
Replies: 18
Views: 14,802
Posted By BaggyToaster
Re: Crank No-Start/Idle 91 ZR-1

Security light flashes normally. Key in and ignition on, security light goes out. Starter cranks normally but engine will not continue to run. Fuel pressure is good and does not fluctuate while...
Forum: C4 ZR-1 Technical Postings 09-20-2024
Replies: 18
Views: 14,802
Posted By BaggyToaster
Crank No-Start/Idle 91 ZR-1

Hello everyone, I have been a long time reader of these forums and the information has been quite helpful. I have a 91 ZR-1 that has been plaguing my existence. I first diagnosed a crank no start as...
Showing results 1 to 8 of 8

 
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