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Tuning chip

4518 Views 9 Replies 9 Participants Last post by  officer woo
I saw a link to this on coloradofans.......has anybody ever herd of/used one of these before?? seems good to me and for $20

Best Performance Chip for GMC Canyon 2004 2012 Gain MPG | eBay
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The general consensus on the chips seems to be that are they arnt worth it. A tune can had for $99 and on up


Edit at $20 with a money back guaranty give it a try who knows



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Agreed with the don't do it. You are more likely to screw something up or what small change it does make will eventually be corrected for by the computer.
We cajoled a member here who made the mistake of buying one of these into cutting it apart.
What we found was a resister between the power and ground of the MAF power lines.

Here's how the MAF works: The sensor sends an electric current over a wire that is exposed to the air intake. The incoming air cools the wire. The sensor can tell based on how cool the wire is how much air is coming into the engine. This information is encoded into a frequency based signal and sent back to the engine computer.

This "Chip" taps into the power and ground lines that supply the MAF. It doesn't even touch the MAF signal wire. It is -literally- the equivalent to sticking your fingers in a light socket and hoping that your furnace runs better.
It is -literally- the equivalent to sticking your fingers in a light socket and hoping that your furnace runs better.[/QUOTE]

lol thanks for saving me!!
Lol
We cajoled a member here who made the mistake of buying one of these into cutting it apart.
What we found was a resister between the power and ground of the MAF power lines.

Here's how the MAF works: The sensor sends an electric current over a wire that is exposed to the air intake. The incoming air cools the wire. The sensor can tell based on how cool the wire is how much air is coming into the engine. This information is encoded into a frequency based signal and sent back to the engine computer.

This "Chip" taps into the power and ground lines that supply the MAF. It doesn't even touch the MAF signal wire. It is -literally- the equivalent to sticking your fingers in a light socket and hoping that your furnace runs better.
certainly explains why some fried their pcm's. I could imagine that power socket getting pretty hot on the board with an extra resistor thrown in.
good call wh1pple. that episode of MCM was my first thought when seeing this post.
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