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2006 gmc envoy_slt
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1,006 Posts
Discussion Starter #1
My old Envoy was a 2005 XL 4x4 with the I6 and my new Envoy is a 2006 standard length 4x2 but I still have the I6. Could I use my pcm that I purchased for my old Envoy in my new Envoy? I purchased my tune from pcmforless and they are closed for the holidays. Also, do you know if they offer free upgrades on the tunes so if I do need a new tune will they tunes the pcm for free? I thought I remember them sayingthey would when I purchased it originally.
 

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2003 gmc envoy_slt
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331 Posts
PCMs are not plug & play. They have the VIN of your vehicle coded in so at a minimum you'd have to have your old one updated with the VIN of your current vehicle. Beyond that I seemed to recall pcmforless's website has info on what model years are compatible.
 

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2005 chevy trailblazer_ls_ext
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2,667 Posts
Yeah I didn't think the 2002 - 2005 PCMs were compatible with the 2006+

I looked at their web site and the photos they have show the same picture, but they do have the 2006 separate from the others!
 

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2003 chevy trailblazer_lt
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6,568 Posts
02-05 are the same with s light difference between 02-03 and 04-05
06-07 totally different type..
08 totally different again...

once scarib or how ever u spell his name gets on here he can tell ya everything ya need to know..
 
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