Installed Stage 2 Comp Cams Yesterday
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Joined: 01-05-08
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From: Vancouver, B.C.
In the 2006 and 2005 all the computer tuning is uncharted territory. there is a crustal map table that needs to be there but is not (base running airflow: which tells the throttle body to be open this much when at idle). In 2007 Gm switched back to the same ECU that they used in LS1's and trucks in our cars. that's why you see other company's tuning those year vehicles instead of ours. Vince is working very hard, and closely with me still trying to get it "perfect." My car is running great but i want it perfect and so does he. there is nothing wrong with the tune it makes the car run outstanding. but is a little shaky at idle do to the fact that, there is not base running airflow table in the ECU like there is in the 2007's
looks like im next to get cam'd, read thru the thread again, lol...i wonder if elevaton affect the tune from vince...im located in TX, so idk how much that will affect things, i actually spoke to my buddy who is helping me, seeing how i was told the car dies from not idling correctly, we're gunna try a few things out, first being unplugg frst o2 to run the car in open loop all the time, meaning what i beleive will run off the MAF sensor until the 02 is warm, but since it wont be plugged in, it will stay open loop as i drive it, cons=gas mileage, mine sucks to begin with 26mpg highway, pros=driveable, lol
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Joined: 10-27-07
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From: Columbia, MO
I tried that. Cause vince wanted to see if my MAF was bad or dirty. it works and vince changes that in the tune. your right about gas mileage going to ****. but the car sputters a lot.
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Joined: 06-01-07
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From: Jackson, Wisconsin
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Joined: 10-27-07
Posts: 826
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From: Columbia, MO
actually it was about 25 MPG believe it or not
vince is going on dyno tuning tour here is the thread
https://www.cobaltss.net/forums/show...09#post2832009
invite as many people as possible
vince is going on dyno tuning tour here is the thread
https://www.cobaltss.net/forums/show...09#post2832009
invite as many people as possible
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