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L99 swap - no cranking at all

 
Old 08-04-2018, 04:54 PM
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Default L99 swap - no cranking at all

I have purchased salvaged Camaro 2010. My plan is moving L99 engine and auto transmission 6L80 to Nova 1973. In addition, All wiring harness, ECM, and BCM are from Camaro.


After I installed the engine, did all the wiring connection, and deleted VATS from ECM, I tried to start the car. However, the engine is not cranking at all.


What are the possibilities that leads to that issue?
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Old 08-04-2018, 05:59 PM
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Not cranking? Not turning over? Or not firing up?

Did you swap the gear selector? You need to be able to tell the comp you are in neutral/ park.

Fuel system? This is a returnless style

wiring and fuses? Coils, injectors, starter should be getting power. If it was a wrecked car double check your wiring and fuses.

​​​​​​​Any codes store in the pcm?
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Old 08-05-2018, 07:45 AM
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Originally Posted by Mymonte666 View Post
Not cranking? Not turning over? Or not firing up?

Did you swap the gear selector? You need to be able to tell the comp you are in neutral/ park.

Fuel system? This is a returnless style

wiring and fuses? Coils, injectors, starter should be getting power. If it was a wrecked car double check your wiring and fuses.

Any codes store in the pcm?
The car not cranking at all. The pcm has startup tune so no vats. I did not check it for any code. I used everything out of the camaro and put into my car shifting stick, wiring, fuses, dash, bcm and everything. But not the doors panel, I must try to connect the doors panels just to check because I heard that it has something to do with vats or bcm
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Old 08-06-2018, 09:51 AM
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Any support please
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Old 08-07-2018, 02:08 PM
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Zap the starter directly with the car in neutral to see if the starter will turn.
Check the clutch switch also.
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Old 08-07-2018, 05:49 PM
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Originally Posted by Eyad.alherz View Post


The car not cranking at all. The pcm has startup tune so no vats. I did not check it for any code. I used everything out of the camaro and put into my car shifting stick, wiring, fuses, dash, bcm and everything. But not the doors panel, I must try to connect the doors panels just to check because I heard that it has something to do with vats or bcm

If you used everything from donor car you dont need to delete vats.
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Old 08-07-2018, 05:54 PM
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Originally Posted by Eyad.alherz View Post
Any support please
Really? Only god knows how you did the wiring. The PCM shouldn’t even be a part of this equation, so it shouldn’t matter one bit what kind of programming you’ve done to it.
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Old 08-07-2018, 06:00 PM
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Originally Posted by 8.Lug View Post

Really? Only god knows how you did the wiring. The PCM shouldn’t even be a part of this equation, so it shouldn’t matter one bit what kind of programming you’ve done to it.
And this helps him HOW?? Being a bit more constructive would add to this thread. Nothing you said here does that.
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