Maybe I'm missing the boat, but isn't it possible all this KR is really torque management? That's how it was in my '97 Pontiac. The TM would pull timing via KR... it would even show knock sensor...
Type: Posts; User: big_news_1
Maybe I'm missing the boat, but isn't it possible all this KR is really torque management? That's how it was in my '97 Pontiac. The TM would pull timing via KR... it would even show knock sensor...
We're starting to think about electrical again.
My battery (new within the last year) consistently tests low voltage. The alternator is known to have a shoddy positive connecting stud, though it...
The transmission shop said everything "seems alright" with my car. I even flashed tune revision "J" to the PCM so they could experience the slow WOT shifts. I don't get how they couldn't see the...
The car was dropped off at the tranny shop about 1 hour ago. By the end of the day I should have a report of the line pressure, electrical connections, and general functionality of the tranny. ...
So if I understand correctly, the only reason the shift is firm with the current tune is because it is occurring at a lower RPM? Am I correct in assuming you suspect there is a line pressure issue...
Mods currently installed:
Cam (roughly equivalent to a ZZP GT1, with a bit less lift)
Ported and milled (.040) heads
LS6 springs
Ported exhaust manifolds
2.5" straight pipe exhaust...
Results for revision "K":
Russ, we're almost there! This one was most definitely better in all aspects! I'm totally pumped right now!
The 1-2 was relatively quick this time. It could still...
Interesting! There are definitely a number of highly knowledgeable folks around here, and I'm constantly impressed by the level of knowledge tossed back and forth in every post. I was specifically...
Of the three transmissions I've had, the first was rebuilt from one core and the next two were built from an entirely different core. There were no common parts between the first trans and the next...
This is what has been baffling me the entire time. Have you ever seen this before?
I feel like we're missing something. What could cause such a large discrepancy?
Just like the title says...
I'm curious how Russ K got so good at using HPT and has developed tuning methods that all of us use as guides. Seriously, what's the story? I can hardly read through...
Scans for revision "J":
The 1-2 shift was noticeably more immediate than previous tunes. You can see how quickly the RPM changes when the shift is performed compared to other scans.
The 2-3...
Yes, I have the adjustment screw tightened as far as it will go. It is my understanding that with the Transgo Shiftkit Jr. I shouldn't need to max out my modulator, so it baffles me why the shifts...
Scans for tune revision "I":
We might be getting closer! First and foremost I tightened down the adjustment screw in the vac modulator to give higher line pressure. This seemed to give more...
Still need to check the line pressure with a mechanical gauge. We'll see what happens in the next few scan/tune cycles. I'm heading out now to try the latest tune you posted. I'll report back ASAP.
Yes, what he said :D
I'm still waiting to scan. I came down with a cold and have been inside all day. I might get to it tonight. At the very least I'll get it done by tomorrow night.
Russ, I also wanted to specifically ask if you think this is a tuning issue, mechanical issue, or combination of both based on what we've seen so far. Thank you sir!
Scans for tune revision "H":
First of all, I noticed this tune is almost identical to the tune entitled "Bonnie Mod 8-5-08" I posted on page 2. The only differences I could find were a few shift...
Well crap, I could've told you that! ;)
Oddly enough, no matter how you save the tune, every time you reopen it in the Editor the FWD/Transaxle button is reset. Does this have any bearing on our...
Yes, the modulator I have is adjustable. The problem thus far is that the shifts are slow and sluggish even when the modulator is adjusted for maximum line pressure! Normally I would be concerned...
Got some scans with revision "G":
The 1-2 does not bounce off the limiter now. The shift seems to be commanded at 5100-5200rpm but does not complete until 5800-5900rpm. The shift is also...
Finally got some scanning done!
First of all, tune revision "E" set a P1870 Transmission Component Slipping code after extensive freeway driving. We ran into the same problem after the first...
My parents have been town and we haven't had time to try the tune. They leave tomorrow morning, after which time I'll be able to report back about the results. I'm definitely still trying to get...
If the P0730 code was set that way in the factory tune I posted then I would assume it was a stock setting. I have never touched that error code in HP Tuners. Based on everything I read on this...
This one was different, but I don't think it was any better. The 1-2 bounced off the limiter, though the 2-3 shows promise. I believe the 2-3 was completed by about 5500-5600rpm, but it was a...