c5 flex fuel questions
01-11-2017, 04:49 PM
#81
Truck Doug there is a switch in the tune that enables the tps and iac. Just disable the Dbw. It's called etc. Change the 1 to a zero so the etc/Dbw is disabled and that enables the tps and iac. I am gathering knowledge on this to try and implement flex fuel on my setups.
01-12-2017, 04:38 PM
#86
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No sir....you keep yapping. I have a FF 3bar 1998 F-body currently rolling the streets looking for victims from your knowledge. Its people like you and bigmandengo that go the extra mile making this info available to the rest of us heathens. Thank you for what you do.
01-12-2017, 05:11 PM
#87
Open the file, then go to System - General - System and change the 1 under the ETC column to a 0. After that, you will need to make sure all the idle airflow tables/data are properly filled out for a cable throttle. but not all of the later PCM's have the hardware to drive the IAC stepper motor. If you wire it as a cable throttle, you will see no feedback from the TPS in the scanner software when there is a 1 in the ETC column. Once you change that to a 0 and reflash you should see TPS feedback
01-13-2017, 01:48 PM
#88
No sir....you keep yapping. I have a FF 3bar 1998 F-body currently rolling the streets looking for victims from your knowledge. Its people like you and bigmandengo that go the extra mile making this info available to the rest of us heathens. Thank you for what you do.
01-14-2017, 11:43 AM
#89
Open the file, then go to System - General - System and change the 1 under the ETC column to a 0. After that, you will need to make sure all the idle airflow tables/data are properly filled out for a cable throttle. but not all of the later PCM's have the hardware to drive the IAC stepper motor. If you wire it as a cable throttle, you will see no feedback from the TPS in the scanner software when there is a 1 in the ETC column. Once you change that to a 0 and reflash you should see TPS feedback
i'll give it a try when i get the truck back together. i wrecked it slightly and then decided i needed a six liter and a bigger turbo lol
01-16-2017, 09:05 PM
#92
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https://ls1tech.com/forums/conversio...-6-0l-lq9.html
02-06-2017, 08:57 PM
#93
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So i went to the junk yard this weekend and ran across a 04 tahoe with a p59 pcm so i snatched it up with the green and blue pieces. PCM service # 12586242, hardware # 12583660. I got my buddy to pull the PCM wiring diagrams for my 99 vette and the 04 tahoe and they seem to be mostly the same except some grounds for the 02s which i would like to make work. I am a manual car so the trans stuff im not worried about and i dont need 3 bar. Biggest things im worried about is the vette uses pin 42 on the C1 connector is used for fan relay 1 and i dont see a fan control on the p59. I guess worst case i could just plug the thing in and see what happens.
I would like to get this up and running before i pull the motor for a rebuild or a different motor so im not trying to mess with it while im trying to break in my new motor.
I would like to get this up and running before i pull the motor for a rebuild or a different motor so im not trying to mess with it while im trying to break in my new motor.
03-20-2017, 07:55 PM
#96
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I emailed the guy at lt1swap about doing this swap and he was saying the tac modules may not be compatible. Has anybody swapped this in a C5 and kept the DBW to confirm this?
03-21-2017, 07:59 PM
#98
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Cant confirm it, but my avalanche OS has all the DBW tables in it. Im using a P59 from ebay. It would be pretty sweet if you can pull that off.
