Hidden shift mode in the PCM?
Thread Starter
On The Tree
Joined: Dec 2001
Posts: 125
Likes: 0
From: USA
Hidden shift mode in the PCM? I tried posting this on LS1.com with no helpful replies. Just one guy who said it won't work. He didn't say why.
We have OBD-II and this works. I did it on my old Z28. And my new Yukon has a tow/haual mode, so is this a feature that is built into the PCM?
See link for mod-
http://www.b-body.net/Technical/Driv...60ESwitch.html
We have OBD-II and this works. I did it on my old Z28. And my new Yukon has a tow/haual mode, so is this a feature that is built into the PCM?
See link for mod-
http://www.b-body.net/Technical/Driv...60ESwitch.html
Thread Starter
On The Tree
Joined: Dec 2001
Posts: 125
Likes: 0
From: USA
Re: Hidden shift mode in the PCM? Someone finaly came up with a good reply over on LS1.com-
I work at a Chevy dealership and asked some of the service guys if they thought this would work. The general consinsus is that the A4's PCM as hooked up to the LS1 does NOT have the nessisary performance shifting sub routine to simply add the switch. You would have to have the PCM reprogramed and then add the factory switch. I think you would be better off to spend your time and money on an aftermarket kit like the B & M, HPP3 or TransGo
I work at a Chevy dealership and asked some of the service guys if they thought this would work. The general consinsus is that the A4's PCM as hooked up to the LS1 does NOT have the nessisary performance shifting sub routine to simply add the switch. You would have to have the PCM reprogramed and then add the factory switch. I think you would be better off to spend your time and money on an aftermarket kit like the B & M, HPP3 or TransGo
Staging Lane
Joined: Jan 2002
Posts: 75
Likes: 0
Re: Hidden shift mode in the PCM? The Australian PCM's have two different shift modes in the PCM. One in Power, the other in Economy. Both also have different TCC lockup points as well.
Being a Beta tester of LS1 Edit in Australia has allowed me to totally change shift parameters for both modes. I can therefore setup my power mode for track work and economy mode for street use.
This mode is switchable via a console mounted switch fitted to all A4 cars as a standard feature.
Being a Beta tester of LS1 Edit in Australia has allowed me to totally change shift parameters for both modes. I can therefore setup my power mode for track work and economy mode for street use.
This mode is switchable via a console mounted switch fitted to all A4 cars as a standard feature.
TECH Junkie
Joined: Nov 2001
Posts: 3,029
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From: Chi-Town
Re: Hidden shift mode in the PCM? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by VT2 EXEC LS1:
<strong>The Australian PCM's have two different shift modes in the PCM. One in Power, the other in Economy. Both also have different TCC lockup points as well.
Being a Beta tester of LS1 Edit in Australia has allowed me to totally change shift parameters for both modes. I can therefore setup my power mode for track work and economy mode for street use.
This mode is switchable via a console mounted switch fitted to all A4 cars as a standard feature.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">that is really cool. do you notice a huge difference around town with the economy on?
<strong>The Australian PCM's have two different shift modes in the PCM. One in Power, the other in Economy. Both also have different TCC lockup points as well.
Being a Beta tester of LS1 Edit in Australia has allowed me to totally change shift parameters for both modes. I can therefore setup my power mode for track work and economy mode for street use.
This mode is switchable via a console mounted switch fitted to all A4 cars as a standard feature.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">that is really cool. do you notice a huge difference around town with the economy on?
