2000 454 vortec constant problems what to do?

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65nightmare

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Glad you got it back to running - at least where you were before. Sounds like you are ready for a full fuel tune up to me.

Thanks and yeah I am. I'm probably going to have the heads gone through right away too and stick a cam in it.
 

Mangonesailor

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Ok so I had the icm tested and it was bad so I got a new one, changed it still no start but the only code I am getting now is
ignition control circuit high voltage?
Last update I put a new coil on and found a bent pin in the new icm so I straightened the pin and it fired right up and runs just as before (not great but not bad) so thanks to all for the info!

Good deal. Glad we could lend a hand.

If you do throw a cam in, let us know how that goes for ya. I plan on putting one in at some point before the kids start showing up.
 

DerekTheGreat

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Congrats on getting over that. Now you'll be able to help others or yourself if that same problem or similar pops up in the future.
 

dannymcd

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I'll put that in the back of my head, I had the ICM off when i did the injector swap and didn't replace it, I hope it doesn't come up to bite me later.
 

65nightmare

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I'll put that in the back of my head, I had the ICM off when i did the injector swap and didn't replace it, I hope it doesn't come up to bite me later.

I had mine in and out 3 times yesterday so it doesn't seem to bad to me now lol
 
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