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Thread: Buick lucerne v6 ...is it tuneable?

  1. #1
    Potential Tuner
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    Buick lucerne v6 ...is it tuneable?

    I have a 2006 buick lucerne 3.8l v6 engine,drive by wire. I am considering to buy hp tuners. I was told the pcm in those cars are not able to be tuned. On the supported vehicles list it shows the 4.6 northstar but not the v6.

  2. #2
    looks like a standard E40 pcm so it should be tuneable

  3. #3
    Tuning Addict 5FDP's Avatar
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    I searched on the topic too but found nothing on be able to read/tune those. The 2004+ computers in the grand prix, lacrosse, lucerne all kinda look alike and do look like the E40 but the computer is different. The pontiac computer is a P05 controller.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.