Chevy_enthusiast23

I recently bought a 2009 cobalt ss/tc, and i know all the stock specs for boost and hp. However my boost gauge is reading 22psi of boost, and a max output power of 280-300hp sometimes. Now im suspisious of just a glitched boost reading or maybe a computer glitch, or if my car is actually making that power and boost.. Possibly the first owner had the stage 1 gm tune.
So my question was, if anyone else has seen these types off issues with the digital gauge? Or is it certain that my car has a tune..

The overall performence of the car is hard to seperate that of a completely stock cobalt ss, seeing as im not sure if mine is stock or not..

If anybody has any idea it would be much appreciated, i plan to get a daily driver ghost tune through trifecta eventually..

Shanedude

You are not stock boosting 22psi. Possibly GMS1. Maybe ask GM if they have any history of your car being flashed.

Be careful of Trifecta. I've been waiting 2+ weeks for an update on my tune...I do not think Vince(master tuner) cares about us anymore he just wants the easy $$.

I regret going Trifecta and will be switching over to HPT later. Besides the lack of care Trifecta was a funn time. But without being able to get ahold of Trifecta for updates/re-tunes there is no point in investing money into a company that does not care.

Chevy_enthusiast23

Thanks for the advice, ill keep my options open. I knew i wouldnt be running 22psi stock but i just assumed bc it being a digital gauge that it may be glitching and showing a higher reading, basically i was questioning the accuracy and reliability of the digital gauge, compared to that of the manuel or analog gauge.

thatzthastuff

iTrader: (1)

You at least have gms1, but as far as the hp I don't know how accurate that was. With cai, exhaust, and catless downpipe I'd get like 290ish on stock tune which is technically impossible since the computer limits power to 260 lol

thatzthastuff

iTrader: (1)

What's your AFR at wot? If you see 13+ then it's gonna be gsm1 as the gm tunes seem to run lean but if your 12s or lower then you're gonna be trifecta/hp. Best way to tell in my opinion

KMO43

If your manifold MAP sensor only has 1 bolt you have a tune