Question about Intense PCMs - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 05-06-2007, 11:21 PM   #1
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Default Question about Intense PCMs

Does it affect gas mileage? It'* not like I'm gonna be buying one anytime soon (S1 ), but I think it would be cool to know
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Old 05-06-2007, 11:28 PM   #2
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I used to have an I-PCM. No noticeable changes. Same goes for my DHP.
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Old 05-07-2007, 01:19 AM   #3
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Some people have seen a good increase in mileage, and some don't. I my GTPs I noticed about 2mpg gain....now my G/Fs GT lost about 1mpg.

Either way its a good mod. Just make sure you have the supporting mods for it, and you'll have a better chance seeing some MPG gains.
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Old 05-07-2007, 07:25 AM   #4
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Agreed, it all comes down to having mods to support and as with anything else. If you keep the pedal on the floor, how can you expect MPG'* to appear increased.
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