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2003 gmc envoy_slt
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14 Posts
Discussion Starter #1
Can I assume that a PCM Tune is the same as a PCM update.

If so, do I need to spend dealer money or are they done the same from my local mechanic?
 

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Registered
2004 gmc envoy_slt
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2,246 Posts
They are not the same, an update is just what the factory may have "improved" in the software. But a "tune" is a change to the operating parameters to make the engine and transmission work better. Check with PCMofNC.com for info on a tune.
 

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2008 chevy trailblazer_lt
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16 Posts
tune

I got the pcm tune about 6 months back and love it! Way worth the money if your thinking about it, and easy enough no mechanic is needed!
 
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