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My cable crapped out. I need to purchase a new one. I have sent multiple emails to support and sales and I cant get anyone to respond.

Can somebody help me out?

Is it possible to make Hp Tuners read only the TCM and then write only the TCM?:pray:

I have an 81 camaro with a LS3 and 6l80e. The kicker is the MAST motorsports harness and computer the engine...

No vacuum leak, LTFT and STFT are sitting at -2/+2. What causes the surging in gear?
How do I fix it?

Just installed a new motor in a C-5 A4.
Spec: LS3- 417
Trick Flow heads
240/248 112 LSA
92mm Fast
LS2 throttlebody
LG LTS no CATS

I have had to...

Here is the file

I flashed the computer back to stock, reread the computer made my adjustments, Then
did write calibration only and it gave me a timed out message at loc:AEE0

So I just change the final drive section to 4.56.

Then go into manual scale 4.56/3.42= 1.333 scale it to this?

Then how do I manually scale the tire size.

Im trying to change the gear ratio in hptuners for 98 tahoe.

Put in 4.56 as new gear ratio and type in the new tire size but it wont let me commit only undo. What am I missing?

1998 Chevrolet Tahoe

I just spoke with the customer and he said that he uses a hypertech for his different tire sizes.

I can flash the truck back to stock with a tech 2 if thats what I need to...

No the pcm has not been previously tuned.

And the battery is fully charged.

I was in the middle of write calibration only when it came up and said VCM timed out at loc: 1000.

So I tried a write entire got the same thing this time at loc: 8000

Tried pulling the radio...

I have a 2002 C-5 road race car. The car has no 02 sensors stock MAF, stock MAP sensor. I was wondering if there are any stickys on how to tune the car this way. WOT is all I'm worried about. The car...

The car is a 2001.

The info log said the pcm serial #yyyyyyyyyyy
Im guessing this is what you are talking about.

Do I have to license the entire year to be able to tune it or get a new PCM?

I purchased 2 credits to do a single vehicle lisence on a vette. Updated my application key. It says I have 2 GM credits, but when I try to lisence the vehicle it only gives me options to do an...

I have downloaded your tune driven the car a few miles and so far it has seem to fix it. I will let you know here in abit Im going to go put some miles on it to make a 100% sure. Thanks for the...

Yeah I turned M6 smoothing off. I went into the timing tables and made them all pretty close to the same around cruising and take off; Idle base, coast down, high octane, low octane. Even adjsuted...

07 Z06 stumbles just after you take off about 22mph you can see it in the scan at around frame 23025 the timing does a wierd dip. let me know if anyone has any ideas.


The car has a 238/254...

yeah my .0120 was too much and the car wouldnt even idle so I just put it right back where it was.

ETC area Scalar is what I thought it was. I knew it wasnt going to make a big difference if any. Just wanted to give it a shot. The stock # was .0255
and for a 90mm it should be about .0120. for...

I have 2003 C-5 that I have put a LS2 90mm throttlebody on, is there somewhere in hp tuners to reporgram the computer so it knows it has a 90mm instead of 78mm. That way when I start adding air...