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Well the GMS1 kit is better than factory connected. I cut the original connectors off and crimped and soldered the new bosch connectors on. I am certain connections are not to blame here. (mainly...

Anyone know what sensors are involved in detecting cylinder misfires in the LNF. I always assumed it was the O2 sensors, I was under the impression that if they caught an extremely rich spot in the...

I have never gotten a reading on either traction control pids. Always log them, but they do nothing.
And I will look into the etc and timing and cams, but I was going for something more concrete. ...

OK, as i am sure most of you 4cyl tuners know, FWD is a PITA to get and keep power to the ground.
So i am trying to tune for traction and power.... but it isnt so easy to tune around it when it...

Good grief!!!! i somehow skipped over 238.... it was still set to "3-mil-on (x-cycles)"

Well i am hoping that was my problem.... dang it... 11 passes on a perfect day... all...

Did i say any of this is "new news" Someone asked what was to gain over just "copy and pasting the data from the stage kit" so i explained. It wasnt a news flash. it was an answer to...

I heard from a few people recently that HPT is now able to tune the 2.2L and 2.4L ecotec....

Last I checked that was not true, but just wanted to hear it officially.

i am guessing it is...

fairly certain i disabled everything as described in your pill mod write up...
I will double check in a minute....
but one thing i do know... I get no CEL, and even HPT shows no engine codes... ...

I just had a huge debate with one of the engineers from GM who supposedly worked on the stage kit. And he claims that the stage tune is completely re-written OS. It is like a new "version" of...

ok well i got my car to the track for the first time today....
was sooo excited.... and yeah... i hit 90mph and the turbo just cuts out... like 0psi...
it pegs 30psi and shoots me like a rocket...

check your PM's...

but thank you for the info.... that helps alot....
what year was your buddy's cobalt? did he buy the full stage kit from gm and have it flashed at the dealer?
where...

ok but now what if you had the stage 1 kit on one car... and you used HPT to do a read entire... and then you licensed the stage 1 car... could you then upload the entire stage tune onto...

bump... i would like to know the same things....

Wondering if anyone could help me (and maybe some others) in understanding the Timing tables here a little more... Most cars i have worked with before only had one timing table... and that made...

ok... so it isnt like nudging one a bit totally screws the other.... but a change to the freq should be followed by a tweak of the correction...

Sounds like the frequency table is like...

No, i still have my Torque management inj disable stock... should i Zero it out? I didnt know what all used this table, and didnt want to disable traction or stability control if they used these...

oh yeah... and just curious if there is something i overlooked... I turned off all overboost controls and the cel's to prevent limp mode.... but i still find that i am thrown into a semi-limp...

just curious here..... I see how the scalling of the timing tables helps us get some more control over the high load areas timing... But curious as to why there is no talk of scalling the maf...

Ok... but should we step back to the freq table, trim over it, and then trim over the modified calibration chart too? Or will going back to the freq require nuking of our calibration mods?

just to make sure i got this right.... and maybe to help others understand a lil better....

We want to do all our actual tuning on the frequency table.... get that dialed in as close as...

Just curious.... I had done all the tuning as explained here with great results... everything worked exactly as it was explained, with results better than i expected...
Well then i got to the...

I am having the same exact thing here..... I installed my catless 3" downpipe, (and at the same time hahn charge pipes and a short ram intake with K&N filter)... after the install i was...

I was just curious if you ever got your histograms to work.... I am having the same problems the other fellow pm'ed you about. all the data is piling up in the first and last cell of each...

I have read in MANY places that the LLY is the EXACT same engine as the LBZ, except for a beefier tune.
So i am curious as to why an LBZ tune would not load onto a LLY or visa versa.

I have tuned turbo-charged chevy gasoline engines with hpt.... And I am mildly familiar with HPT and tuning in general.

If no one has a tune they are willing to hand out, perhaps we can put our...