Recent content by bluecheby

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    Ls swap using only P0411 ECM, no black box

    I have contacted Lextech and got a pinout diagram but I didn't tell him I was doing a LS and 4l80 swap at that time. As far as I can tell though it's the same deal. I just need to change out my harness from what feedback I've gotten so far. My big question is, when I put the van tune on the...
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    Ls swap using only P0411 ECM, no black box

    So I am going to swap a built 5.3 into my 1997 extended cab and Would like to swap the P0411 as well. I know this has been done plenty of times but what I find everywhere is leaving the black box installed and piggy backing a P0411 ecm to run the LS engine while the Blackbox runs the truck side...
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