PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

WOT shift point changes in tune not responding

Old Apr 15, 2018 | 10:38 AM
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Default WOT shift point changes in tune not responding

01 camaro cam bolt on car with 4l60E circle d 4c converter 4.10 gears 28" tires
which were entered in the tire/gear wizard
The mph tables in both part and full throttle are 1-2 at 36 and 2-3 at 68 which are lower than the actual mph its shifting at 44 and 79. The WOT rpm was set at 6000 for 1-2 and 2-3 .It actually shifts at 6400-6500 1-2 and 6700+ 2-3. I've stepped the 2-3 rpm down to 5500 with zero change in the actual shift rpm .Scratching my head....
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Old Apr 15, 2018 | 11:17 AM
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you will have to sync the wot shift tables. google up the bluecat trans tuning program. makes quick work of all that stuff.
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Old Apr 15, 2018 | 11:25 AM
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Originally Posted by truckdoug
you will have to sync the wot shift tables. google up the bluecat trans tuning program. makes quick work of all that stuff.
he said he syncd the part and full throttle tables.

OP is the car tuned for air and fuel correctly? The car looks at engine torque for shift pressures etc. If the tune is off it can mess with your shift pressurea which can delay shifting. Also, have you confirmed via gps and logs that your speed is accurate?
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Old Apr 15, 2018 | 03:15 PM
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I did check it with a gps app and its off 1mph .It has been dynotuned and seems at Least close. Needing to get a wideband in the car but logging the last runs narrowbands were in the 920-940 range
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Old Apr 15, 2018 | 03:24 PM
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Originally Posted by Dwalt79
I did check it with a gps app and its off 1mph .It has been dynotuned and seems at Least close. Needing to get a wideband in the car but logging the last runs narrowbands were in the 920-940 range
Do not trust a narrowband reading. But like you said it was Dyno tuned so hopefully they did the maf and ve. Otherwise I would check the trans pressure tables.
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Old Apr 15, 2018 | 03:41 PM
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What should I look at with the MAF and VE?
was Hopin to log the trans pressure
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Old Apr 15, 2018 | 04:19 PM
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Whoops reading fail on my part.

Might also try a write entire too. I had trans wot shift speed problems last year and doing a write entire sussed it.
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Old Apr 15, 2018 | 04:25 PM
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Originally Posted by Dwalt79
What should I look at with the MAF and VE?
was Hopin to log the trans pressure
Log engine torque and trans pressure and see if engine torque looks reasonable and if trans pressure at wot looks reasonable.
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Old Apr 16, 2018 | 09:39 AM
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I always had to set the shift rpm lower than i wanted for a 60e to shift at what i wanted. If tht makes sense. Like if i wanted a 6400 1-2 shift i would need it around 5800 shift rpm. The 60e are really sloppy when making a shift, if they are not built. Ive tuned alot of them and always have those issues. U also have to have the speed well below what u want as u stated in your first post. Trans will see speed thin rpm for a shift. Best to let it see speed sooner. Easier to control via rpm than speed.

A 80e will always shift at what u tell it to!
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Old Apr 16, 2018 | 09:57 AM
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Originally Posted by ddnspider
Log engine torque and trans pressure and see if engine torque looks reasonable and if trans pressure at wot looks reasonable.
Are these channels I can add that are already in the scanner? The exact name what I'm look in for? So far I'm not having luck being able to read trans pressure
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Old Apr 16, 2018 | 10:00 AM
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Originally Posted by ddnspider
Log engine torque and trans pressure and see if engine torque looks reasonable and if trans pressure at wot looks reasonable.
Originally Posted by brandon6.0
I always had to set the shift rpm lower than i wanted for a 60e to shift at what i wanted. If tht makes sense. Like if i wanted a 6400 1-2 shift i would need it around 5800 shift rpm. The 60e are really sloppy when making a shift, if they are not built. Ive tuned alot of them and always have those issues. U also have to have the speed well below what u want as u stated in your first post. Trans will see speed thin rpm for a shift. Best to let it see speed sooner. Easier to control via rpm than speed.

A 80e will always shift at what u tell it to!
I get the lead time, that doesn't bother me .What bothers me is I've decreased the rpm value 3 times for a total of 500 rpm and it has had zero effect on the actual shift point. The speed parameter should have already been satisfied
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Old Apr 16, 2018 | 10:58 AM
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Originally Posted by Dwalt79
Are these channels I can add that are already in the scanner? The exact name what I'm look in for? So far I'm not having luck being able to read trans pressure
EFI Live or HPT? I'm an EFI Live guy.
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Old Apr 16, 2018 | 11:22 AM
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Using HPT
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Old Apr 16, 2018 | 11:26 AM
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trans pressure is GM.TFMPRS is what the PID is in EFI. GM.TRQENG is engine torque.
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Old Apr 16, 2018 | 11:31 AM
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Hmm don't have those in hpt that I'm seeing . I've inserted 2 pid s stating pressure but neither will read or log
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Old Apr 17, 2018 | 05:17 PM
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Anybody have this issue???
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Old Apr 17, 2018 | 09:15 PM
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where are you looking the drill down menu in the channels?
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Old Apr 18, 2018 | 07:59 AM
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Originally Posted by truckdoug
where are you looking the drill down menu in the channels?
sorry, not understanding you....
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Old Apr 18, 2018 | 09:19 AM
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in the channels area of the scanner, when you click the little green gear to add a channel it opens a menu with a bunch of different areas engine, transmission yadda yadda each one of those can be opened and there are sometimes more parameter choices under each one. in computer nerd speak thats a drill down menu.

i'd think you wanna to log trans line pressure, actual force motor current, commanded force motor current and maybe even a torque value to see if your changes are doing something.

i had your same exact problem last year. except in an 80e. i found that you cannot simply sync the two wot shift tables by hand. you have to manipulate all of it, thats the beauty of the bluecat program. each change you make in the BC trans tool you can watch the values change everywhere on the export data. then copy that over to HP tuners. unify all the hot/cold/performance tables and do a write entire.

if it's still not shifting where you want, log pressures, shift times and slip. you might have a mechanical issue
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