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I have an HPTuner to use on my Cobalt 2.0 SS, but the farthest I got was hooking it up and paying for 2 credits to get the car unlocked. I never even tuned it and ended up selling the car. I have an...

schaid, are you saying the other types of sensors will read different AFR depending on what octane fuel? If so that's a pretty important factoid that I haven't heard before. I'm pretty sure the AEM...

I've just gotten my HPT Pro unit and bought some credits and backed up the stock tune file. I have a check engine light on right now, says bank1 is lean and it's always doing that because I added an...

OK thanks for the reply, will give this a try tonight.

I'll admit I have a ton to learn as I just got my HPT unit hooked up today. But just browsing through the stock tune I noticed the speed limiter was turned up very high on mine. I am about 99% sure...

If you didn't get an answer elsewhere, I just did this on my 8.1 64-bit system. There is a download here on the forum, just do a search. It was kinda annoying to get Win8.1 to recognize the driver....

I could guess what brand that is, and it's laughably horrible. But that's awesome that you took the time to dig into that and find out just how terrible of a tune that was. I can't believe it...

Thanks for the help. I'll give that a try! Good luck with your L67

I purchased an HPT Pro setup used from someone with the same year, make and model car as me. I probably should have asked this question before I bought it, but the license is transferable right?? I...

I am about to jump into HP Tuners and put a few mods on my 06 SS/SC Cobalt. My concern is about tuning around the o2 sensors. The car is totally stock except for a K&N and airbox mod, which has...

This hasn't been touched much lately, but I'm curious year later now if it's worth trying to use the 60# siemens dekas or just use a different injector altogether?? I know there are other similar...