COP swap NO start

[Branden Brooks]

I have a 98 cobra and I bought the harness from Red Monster, cop valve covers, some used cops. Got everything installed and I try and start it and nothing. The starter cranks and cranks and that's all I get. if I switch back to the normal plugs and wires setup it starts right up. I checked the resistance on all the cops and they all seem to test within the same range. I've also checked all my fuses. What am I or could I be missing? Any advice besides trash this idea would be great.

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[ViciousBlack97]

I have a 98 cobra and I bought the harness from Red Monster, cop valve covers, some used cops. Got everything installed and I try and start it and nothing. The starter cranks and cranks and that's all I get. if I switch back to the normal plugs and wires setup it starts right up. I checked the resistance on all the cops and they all seem to test within the same range. I've also checked all my fuses. What am I or could I be missing? Any advice besides trash this idea would be great.View attachment 1637266

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I hate to be a negative voice, but I was in the exact same scenario as you, and went through the original harness as well as a replacement harness before I was fed up to the point of reinstalling the factory ignition system. Best of luck to you, but I could never get it to work.

 

[jgt58]

Are you sure that the connectors are on the right coils? They may be outta sequence

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[ViciousBlack97]

Are you sure that the connectors are on the right coils? They may be outta sequence

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If it's anything like my scenario, I was getting zero spark. I even used a spark tester to verify, and there was nothing.

 

[LaserRed_Snake]

Try holding the gas pedal all the way down while cranking over. I also recently bought a harness from him, and dealing with the same issue. Car would only turn on with gas pedal all the way down.also sent mine in, as the car was misfiring like crazy after the install.


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[Branden Brooks]

I removed the #5 plug and turned it over inside the cop so I know it sparks. I might get a spark tester tomorrow and check every one.

If it's anything like my scenario, I was getting zero spark. I even used a spark tester to verify, and there was nothing.

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[Branden Brooks]

I bought a new set of cops today. There is a difference between 2v and 4v cops and I know the ones I have came from a GT. So I'll see if that makes a difference come Friday as well.

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[Branden Brooks]

With the help of Red Monster, we fixed it. The pins were backwards on the connectors. Swapped the wires around on each of the 8 connectors, put the cop covers back on and it fired up on the first turn. Runs smooth. No miss fires as of now. The cops I am using came from a Navigator engine.

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[mysteed]

Thanks for following up with your findings. I had a similar issue with a friends harness and it turned out to be the same issue as yours. Glad you got your issue figured out.

 

[jgt58]

Good ole mysteed. You have been around for ages

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[mysteed]

Good ole mysteed. You have been around for ages

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Yes sir. I'll be around for ages more.

 

[Wiseguy302]

With the help of Red Monster, we fixed it. The pins were backwards on the connectors. Swapped the wires around on each of the 8 connectors, put the cop covers back on and it fired up on the first turn. Runs smooth. No miss fires as of now. The cops I am using came from a Navigator engine.

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Hey Branden, how did you end up figuring this was the case? Did you end up testing the wires with a diagram or anything?

 

[Branden Brooks]

I contacted Red Monster and told him everything that I had done and what was happening. He asked for some pictures of the harness and connectors and was able to diagnose the problem. Just did what he told me to do and it worked.

Hey Branden, how did you end up figuring this was the case? Did you end up testing the wires with a diagram or anything?

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