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TCC SOL CTRL or the TCC PWM CTRL

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Old Jan 19, 2012 | 12:57 AM
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Default TCC SOL CTRL or the TCC PWM CTRL
I'm going to hook up a simple rocker switch to my 4L80e torque converter. I'm sick of it never locking on the freeway. What wire would I run the switch to? TCC SOL CTRL or the TCC PWM CTRL?

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Old Jan 21, 2012 | 02:13 AM
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Originally Posted by oakley6575
I'm going to hook up a simple rocker switch to my 4L80e torque converter. I'm sick of it never locking on the freeway. What wire would I run the switch to? TCC SOL CTRL or the TCC PWM CTRL?

Thanks guys!
Not that simple with Chevy and the 80E. If you want it to lock on the freeway, then get it tuned to stay locked at anything under 30% throttle. I just set all my pid's in Cruise from 0 to 30% to 256mph and you have a constant lock up with no heat issue's. Normal Drive mode I set them to anything under 20% throttle.

Gm
uses PWM.
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Old Jan 21, 2012 | 03:32 AM
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I have tuned the TCC for countless hours and it doesn't respond to anything but extra load. It will lock when going up a hill, but once I reach the crest, it unlocks and stays unlocked until load is added again. It doesn't make any sense to me.
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Old Jan 21, 2012 | 03:35 AM
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I think I will cut the PWM wire from the computer and add the rocker switch to it. I will delete all the DTC's so it doesn't lock out fourth gear and see how the computer handles it.
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Old Jan 21, 2012 | 12:49 PM
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4L80Es don't have a control solenoid, only PWM.
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Old Jan 21, 2012 | 01:04 PM
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Thanks Slow
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Old Jan 22, 2012 | 09:53 PM
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Originally Posted by oakley6575
Thanks Slow
If you use HPT. I can send you my tune..
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Old Jan 22, 2012 | 09:57 PM
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Originally Posted by midevil1
If you use HPT. I can send you my tune..
Yea that would be great. You can just post it up right here if you want. I don't have my HPT software with me right now. But I can check it out when I get my tuning computer back. Or you can post some screen shots of the tcc tables. Up to you. THanks
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Old Jan 22, 2012 | 11:33 PM
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Originally Posted by oakley6575
Yea that would be great. You can just post it up right here if you want. I don't have my HPT software with me right now. But I can check it out when I get my tuning computer back. Or you can post some screen shots of the tcc tables. Up to you. THanks
Ok, I will get something to you on Monday.
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Old Jan 22, 2012 | 11:42 PM
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Old Jan 23, 2012 | 10:34 AM
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I attached my current tune. I am a builder so try it with confidence...
Attached Files
File Type: txt
TableData.txt (1.0 KB, 118 views)
File Type: txt
TableData2.txt (1.0 KB, 108 views)
Last edited by midevil1; Jan 23, 2012 at 05:13 PM.
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