View Poll Results: Can I use a 07 z71 pcm on 04 ls motor for a ls swap
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1
33.33%
Maybe so
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0%
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Can I use a 07 pcm on 04 ls motor
07-03-2022, 08:51 PM
#1
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Can I use a 07 pcm on 04 ls motor My question is can I use a 07 z71 pcm and stand alone harness on a 04 ls 5.3 ls swap.I’ve seen a couple plugs are different will it work if I use the 07 alternator which is a 2 pin and not four like the 04.And I got to swap out the DBC for DBW.Will it work? What are things to look out for?
07-03-2022, 09:02 PM
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Most likely no, because the 07 Ecu is almost certainly a 58x reluctor and the 04 motor a 24x reluctor.
You could change the reluctor by removing the crank. But you cannot make a 58x Ecu interpret a 24x signal
You could change the reluctor by removing the crank. But you cannot make a 58x Ecu interpret a 24x signal
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07-06-2022, 01:56 AM
#4
Both of the above replies are correct. It depends on the specific PCM.
07-06-2022, 09:27 AM
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06 z71 So I lied it was an 06 z71 4x4 Chevy.Another question I have is I think the motor was a 6.0 and I have a 5.3 will I have any trouble with the motor running right.thanks for the help.
07-06-2022, 11:45 AM
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You'd need to make a few tuning changes - such as the displacement, but if they are compatible - i.e. both 24x - you can make the motor run fine.
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07-09-2022, 01:25 PM
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Lingenfelter used to sell a 58x to 24x signal conversion box. I had one for a long time.
My computer was a 24x 98 PCM. You can make a 24x computer read a 58x signal but I’m not sure you can do it the other way around.
I actually highly doubt it because you would need to multiply the signal instead of just filtering it. I just don’t know for sure. Maybe someone out there has tried it.
My computer was a 24x 98 PCM. You can make a 24x computer read a 58x signal but I’m not sure you can do it the other way around.
I actually highly doubt it because you would need to multiply the signal instead of just filtering it. I just don’t know for sure. Maybe someone out there has tried it.