Search:

is that what this is on the rail?

idk if its going to upload the picture but basically its a round metal thing on the rail before it goes into injectors

I have a 2009 cobalt 2.2 lap that I supercharged. used all of the stock cobalt ss parts(pulley, injectors). Right now im having an issue just converting my current tune to match injector data from a...

I noticed my wideband goes lean if i pump the brake. Anyone ever experience this before?

09 cobalt 2.2 lap

mods: k&n cai, zzp mid length header, 2.5" catless downpipe, 2.5" zzp exhaust.

New to tuning so I had a guy off the hptuners facebook page look at my tune and see what he...

coudlnt find the log but will upload one soon

88054

so being a noob I had the "view" in basic mode which really limited what I could do. I have since changed that was able to adjust the pe and is now commanding 12.2 at wot. my next concern is power...

Very new to hptuners. Basically I'm trying to get the throttle up to 100% instead of 80% from factory. Also my afr commands 14.7 regardless of TPS or rpm. I can send my noob tune to anyone that could...

I have a 2009 cobalt lt xfe. I have added a k&n cold air intake, zzp midlength header, catless 2.5" downpipe and a 2.5" catback exhaust (all zzp). I would like to tune it myself because ive always...