04 Comp G 1-2 shift issues

[GTPpower]

Not sure if there is something I'm overlooking in the tune that is different than on the 97-03 cars, or if the trans has issues.

At WOT, there is a delay on the 1-2 shift. It looks to me like it's torque management, because the car pulls boost back for a split second at the shift.

I turned off the torque management and abuse with HPT, and raised shift points. When I do that, the car doesn't want to shift from 1-2, until I let off.

Did you 04+ guys need to make some changes with DHP/TT to get yours to shift without the delay and at a higher RPM? I looked quickly at the .bin file, and didn't see anything that I noticed would help out.

Click to read more...

 

[10sec]

Did you set the shift too high? Usually you want to set it ~500rpm lower than what you actually want as it does take a while. Even with a built trans that shifted immediately, it was still 300rpm over the commanded shift point.

 

[GTPpower]

Yeah, it shouldn't be too high. I set fuel cut at 7k, and the same with timing. Adjusted shift from 5200ish to about 6k, iirc. It's not hitting the rev limiter, it just doesn't want to shift.

 

[cacicgtp7]

I know tuning is different with the 04+ than the 97-03, but can't explain your problem. Never had that in my 05 CompG, but also had it tuned from overkill motorsports.

 

[02BlueGT]

Does the 6k match your mph? The computer looks at mph and rpm when deciding to shift,. Also, did you adjust the "Hot" tables to ensure that it still shifts if you hit them.

 

[GTPpower]

I'm pretty sure that at WOT, it only looks at RPM. I don't think I've ever touched the MPH side on my 01.

But, I did try adjusting the MPH and the HOT tables as well, and it made no difference.

 

[AjL227]

I had this same exact issue and tried to combat it as much as I could until the trans finally bit the dust. Snapped the input shaft.

 

[1quick]

did the car just start doing this one day or how did this come about

 

[AjL227]

For me...it just started happening one day. No recent reflashes.
As if the trans wore.. shifted slower, thus not completing/actuating it in time and hitting limiter/cutoff. Tried to combat by altering the trans tables to no avail.

 

[GTPpower]

I had this same exact issue and tried to combat it as much as I could until the trans finally bit the dust. Snapped the input shaft.

Did you find anything wrong with it (besides the input) when it was rebuilt?

 

[GTPpower]

did the car just start doing this one day or how did this come about

It has always done it for me. But, I've had the car running for about 6ish months. Before that, the car sat in storage for 2 years without moving, which I'm sure wasn't good for it.

 

[1quick]

I would say its probably more of a mechanical problem, next week when i get back from vacation i can look at my trans stuff on the power tuner that i barrowed from phatride, he has some of my old files saved from my 06 with 05gtp pcm swap

 

[SaturdaysGS]

Since it was brought up in this thread, what do I need to change to get rid of the abuse settings? I'm not sure what James adjusted on my BIN besides no error reporting codes. I believe something to do with torque management between shifts. Maybe James will chime in as he has a copy of the bin he put on my car.. I'm looking for something like a DHP 1.0 with some extra tweaks. Just a standard intake headers exhaust 3.6 pulley car.

 

[GTPpower]

I would say its probably more of a mechanical problem, next week when i get back from vacation i can look at my trans stuff on the power tuner that i barrowed from phatride, he has some of my old files saved from my 06 with 05gtp pcm swap

Thanks.

I took a video tonight, just to show how it cuts boost at the shift. That's why I thought it was torque management, until I went to raise the shift points.

http://youtu.be/PUS2_X_8N9U

 

[GTPpower]

Would it be a waste of time and money to change the trans fluid?

 

[GTPpower]

Son of a bitch. Evidently this car is too technologically advanced for me. I changed the normal fuel cutoff, but not the one that will decrease TPS.



It was set at 5800RPMs. Now, it shifts like it's supposed to.

 

[Turbocharged400sbc]

Just curious but what osid is that bin?

 

[GTPpower]

Here is what I'm showing: