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Vt ecotec to LS1 conversion problem

Discussion in 'VT - VX Holden Commodore (1997 - 2002)' started by skinnypedal, Mar 1, 2014.

  1. Mar 1, 2014 #1
    skinnypedal

    skinnypedal New Member

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    Hi, I've recently swapped my v6 auto vt to a ls1 manual.
    I had a wreck and just swapped everything I needed over but I'm still having trouble with it.
    It runs and operates fine but i have no air con or cruise control, I have an engine light on and when I plug a scan tool in I can't connect to the engine to even get a reading of the code.
    Has anyone done this conversion before that could help me out?

    Cheers
     
    skinnypedal, Mar 1, 2014
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  2. Mar 1, 2014 #2
    enroh

    enroh Member

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    Did you swap wiring loom and bcm?

    ----500rwhp corn juiced & boosted ls1----
     
    enroh, Mar 1, 2014
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  3. Mar 1, 2014 #3
    skinnypedal

    skinnypedal New Member

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    Yeah i did. Swapped all that
     
    skinnypedal, Mar 1, 2014
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  4. Mar 1, 2014 #4
    enroh

    enroh Member

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    Was it the same bcm as the ls1 car or another one? If its hooked up and running but won't connect I'd be going through all your wiring looking for dodgy connectors or a **** earth.

    ----500rwhp corn juiced & boosted ls1----
     
    enroh, Mar 1, 2014
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  5. Mar 2, 2014 #5
    skinnypedal

    skinnypedal New Member

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    The bcm was the same as the one from the ls1.
    Yeah I've had a look at the connectors, they all look fine
     
    skinnypedal, Mar 2, 2014
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  6. Mar 4, 2014 #6
    Not_An_Abba_Fan

    Not_An_Abba_Fan Exhaust Guru

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    The fact that it is running shouldn't be a security issue, but did you swap key heads as well?
     
    Not_An_Abba_Fan, Mar 4, 2014
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  7. Mar 4, 2014 #7
    nathanVY

    nathanVY such boost

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    Is it a VT S1 or S2? If it's S1 you'll need to swap the wiring behind the dash over from an S2 VT or VX.

    I didn't need to swap the BCM for my LS1 conversion, what errors is the tech2 getting? or can't connect to PCM?
     
    nathanVY, Mar 4, 2014
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  8. Mar 4, 2014 #8
    _R_J_K_

    _R_J_K_ Well-Known Member

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    Did you let the gas out? Which compressor are you using?
     
    _R_J_K_, Mar 4, 2014
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  9. May 1, 2020 #9
    michaelvts1

    michaelvts1 New Member

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    How come you need to change the s1 loom to s2 ? what’s the difference
     
    michaelvts1, May 1, 2020
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