GM LNF Stage Kit PCM Read

[Baldturbofreak.com]

The logs posted appear to flatline at 255kpa

[rommer]

But it is now a 3 bar sensor if I'm not mistaken. Doesn't that change the definition of the 255kpa apparent reading or am I off on that? Still learning this stuff.

[shabby]

The logs posted appear to flatline at 255kpa

It almost flatlines in the previous gear too but at a lower reading, so i think 22.5psi is what its set at. Im sure once we see a scan from a 5spd solstice we'll see higher readings since it makes more torque than the hhr.

[Baldturbofreak.com]

I wonder if it's beign interpreted correctly since the op system has been changed

[shabby]

If the op system was changed that drastically i doubt you'd be able to read it and manipulate it, its almost like it wasn't changed to read those sensors properly. Maybe all gm did was change the desired air load and that's it?
The new sensors just report a lower boost reading to the ecm, i doubt it would freak out since the maf tells it exactly how much air its ingesting.
Anyway we'll find out soon enough.

[Baldturbofreak.com]

If the op system was changed that drastically i doubt you'd be able to read it and manipulate it, its almost like it wasn't changed to read those sensors properly. Maybe all gm did was change the desired air load and that's it?
.

hahahha man that would be so messed up.

[SEGA]

The Maf tables are scaled lower than the stock tables.The long term fuel terms are also positive 10-14 percent as well after seeing some street datalogs.

It will be interesting to see what others have datalogged.

[dont_blink]

I bet the fuel trims are at 0, but our scanner won't read the new OS correctly. That wouldn't make sense that the PCM has to add that much fuel in to compensate for programming. Unless GM REALLY screwed something up lol.

[Baldturbofreak.com]

Or those logs came from a car with an intake.

[davytudope]

sent a couple logs and the file to support@hptuners


ps i have the gmpp upgrade, 2007 sol, 5sp

[shabby]

Post some logs here too

[405HP_Z06]

.….and the tune file

[Bill@HPTuners]

The one that was sent to us is actually already a supported definition so maybe we got one an just didn't know

[davytudope]

The one that was sent to us is actually already a supported definition so maybe we got one an just didn't know

i'll call the people that did the tune tommrow to see if the file that i have is with or without a tune. i dont have my computer on me so i cant see what it is. i'm on vacation visiting family. i got the gmpp turbo upgrade and a good tune done. christmas gift for the car.

[black06g85]

hmm I"m interested in seeing what PCM changes gm did here.

[shabby]

With the "learn down" code disabled and "no lift to shift" code added i'm sure Chris will be able to see those differences between the stock file and the gm tuned file. And hopefully these feature will get into our hands soon enough

[Baldturbofreak.com]

I wonder how much the BCM plays a role in the no lift shift.

[davytudope]

i uploaded it to the repository. awaiting approval.
it was a stock gmpp lnf turbo upgrade file. no tuning.

[SEGA]

Or those logs came from a car with an intake.

NOPE-ALL STOCK AIR BOX....THE VEHICLE IN MENTION NEVER HAD FUEL TRIM ISSUES.

Like I said,in time we will see a trend here I imagine

[PSYKOSTEVO]

There's one that says he will hook it up to HPT today on the Solstice forum, but no one else has spent the money on one yet. Most of the people with HPT to check, don't want to spend the money until they know for sure that HPT works.

Post 184

I have unlimited credits for the LNFs, someone should let me know because I can read for free. Any car any year.