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I went through the Maf freq vs output table. I double it from the original and it is getting a little better. Now the trims are pulling fuel instead of adding it.


It is actually drivable now....

What is the standard procedure for adjusting for a bigger MAF housing? I switched to a blow through setup and a 3.5 in housing and the car is surging @ idle. The car goes lean then rich then runs...

The Bates 252's? I was offered a set of those for a reasonable price but I didn't know anyone who used them.

I've been having problems with my turbo swap since I've finished it. Finnally I am ready to start troubleshooting myself. I think part of my problem has to do witht hat fact that I'm still using a...

It seems that I am already registered for the customer login. But, I didn't register it. None of my email addresses work when I try to log in. And, when I try to make an account it sais there is an...

I have been using hptuners about6 months now. The laptop I was using it on just died. I decided to purchase a min laptop too keep in my car and run the program with. My problem is that their is no...

you may want to check ecotecforums or cobaltss.net

Your always gonna get some knock hitting the throttle. THe intense tune will have tons of timming and be lean. To make it more safe you may want to just pull timing down to about 18 total advance and...

Yeah I'm not running rich. I just wanted to know how to turn the code off. I think I found out how.

I'm trying to pass inspection. I have one code p0172 bank 1 system rich. I admit I am very new with the program. So hear me out.

The car has a complete custom turbo kit. I have no cat but I have...

The solstice, sky, cobalt 2.0t tune available in this thread.

I cant seem to load the attached files. Specifically the 2.0t tune. It sais "unable to parse log" Any ideas?

So about a week and a half ago my car started to idle lean.

First it was in the 15's
then the 16's and so on now its leaner than 18.

WOT is still perfect. I re flashed it and it didn't do...

Thank you.

I've been getting no knock readings at all. @ first I thought it was a good thing but I'm beginning to think that my knock sensor is not working. But I've been informed that I need to set it up to...

IDK why. Everytime I shift gears I get richer.

I would lower your AFR. From what I understand 11.2-4 is much safer and not a significant power loss.

Yeah, well I was running a tune From Tag race craft, I knew it was shit. So I tried to get it tuned at a local tune shop. He is new to the program but not new to tuning. I don't have my wideband...

I just started tuning with HP tuners. I drive a 2006 cobalt with a 2.8 and 60#

I'm finding that @ wot in second gear as the revs climb I don't richen up with stays in the 12's and sometimes 13's....