Using the GM flex fuel sensor on an Fbody
Yes I was running AC and it still functioned as if it were stock.
No I never looked into the traction control because I had a bad harness on the rearend that was mainly killing it for me plus I'm running mismatched front/rear wheel/tire sizes. I'm fairly confident that it would still work however had everything still been hooked up and wheels/tires been the correct size. The TCS spark retard wire was unhooked as well because I was using that as a manual kill switch for traction on the street (yanking 10-15deg will really help kill power to hook up). Once I get the car back up and running from the turbo swap I'll see if I can't dig around and make the traction/abs work as it did from the factory.
No I never looked into the traction control because I had a bad harness on the rearend that was mainly killing it for me plus I'm running mismatched front/rear wheel/tire sizes. I'm fairly confident that it would still work however had everything still been hooked up and wheels/tires been the correct size. The TCS spark retard wire was unhooked as well because I was using that as a manual kill switch for traction on the street (yanking 10-15deg will really help kill power to hook up). Once I get the car back up and running from the turbo swap I'll see if I can't dig around and make the traction/abs work as it did from the factory.
So if I take a 04 GTO OS, and segment swap a known working flex fuel engine calibration to it, then flash it to me 01 F-Body, am I now on the right track to getting the flex fuel sensor, etc.. working?
TECH Regular
Joined: Jun 2012
Posts: 414
Likes: 5
From: SV, AZ
I was referring to LSxPwrDZ. It seems he had 3 bar map, flex fuel, and AC working. Did I miss something. He explained he was using a 04 GTO OS, with a segment swap. Am I missing something there?
TECH Regular
Joined: Jun 2012
Posts: 414
Likes: 5
From: SV, AZ
He's not running a segment swapped 04 GTO OS. He's also not running a stock PCM. All the information needed is in this thread, you just aren't getting it.
If you happen across a situation where the VIN is incorrect for the PCM (some other software applications can write ANY vin to the PCM) you can license it with HP Tuners. HP Tuners will not allow you to create a mismatched VIN and will throw an error when you try to save it.
Since reading / licensing and creating are two separate functions, you won't have to worry about reading or licensing it (with the current version of HP Tuners), only creation of what HP Tuners deems an invalid match. This isn't broken, it is how HP Tuners chose to structure their PCM recognition and licensing. Their competitor EFI Live uses a different method to lock the PCM's which is why they allow VIN overwrites to "non legal" for the PCM / operating system character combinations.
I'm actually running a 2004 C5 OS with a few segment swaps for whatever it is. In my case I'm running the C5 OS with a 2004 6.0L HD Truck transmission (4L80E) along with a 2004 Silverado Flex Engine segment. This configuration has been running in my car for well over a year and on a few other customers cars for over 2yrs.
Prior to HPTuners offering segment swapping I had to use EFILive along with HPTuners to figure all this out. Now HPTuners has made it easy and you can simply segment swap within the tune itself.
Now as for the VIN/OS mismatch license issue there is a way around that... When editing the file in HPTuners it must have the VIN/OS matching. So keep the editable file in it's native VIN/OS format for HPTuners. Once you are finished tuning/adjusting open up EFILive Scanner and change the VIN using it's built in tool. Now the VIN matches for those that need that function to pass emissions.
The only problem I have run into is some scan tools will freak out with something like a 2000 Fbody VIN in a 2004 PCM/OS.
Prior to HPTuners offering segment swapping I had to use EFILive along with HPTuners to figure all this out. Now HPTuners has made it easy and you can simply segment swap within the tune itself.
Now as for the VIN/OS mismatch license issue there is a way around that... When editing the file in HPTuners it must have the VIN/OS matching. So keep the editable file in it's native VIN/OS format for HPTuners. Once you are finished tuning/adjusting open up EFILive Scanner and change the VIN using it's built in tool. Now the VIN matches for those that need that function to pass emissions.
The only problem I have run into is some scan tools will freak out with something like a 2000 Fbody VIN in a 2004 PCM/OS.
I'm actually running a 2004 C5 OS with a few segment swaps for whatever it is. In my case I'm running the C5 OS with a 2004 6.0L HD Truck transmission (4L80E) along with a 2004 Silverado Flex Engine segment. This configuration has been running in my car for well over a year and on a few other customers cars for over 2yrs.
Prior to HPTuners offering segment swapping I had to use EFILive along with HPTuners to figure all this out. Now HPTuners has made it easy and you can simply segment swap within the tune itself.
Now as for the VIN/OS mismatch license issue there is a way around that... When editing the file in HPTuners it must have the VIN/OS matching. So keep the editable file in it's native VIN/OS format for HPTuners. Once you are finished tuning/adjusting open up EFILive Scanner and change the VIN using it's built in tool. Now the VIN matches for those that need that function to pass emissions.
The only problem I have run into is some scan tools will freak out with something like a 2000 Fbody VIN in a 2004 PCM/OS.
Prior to HPTuners offering segment swapping I had to use EFILive along with HPTuners to figure all this out. Now HPTuners has made it easy and you can simply segment swap within the tune itself.
Now as for the VIN/OS mismatch license issue there is a way around that... When editing the file in HPTuners it must have the VIN/OS matching. So keep the editable file in it's native VIN/OS format for HPTuners. Once you are finished tuning/adjusting open up EFILive Scanner and change the VIN using it's built in tool. Now the VIN matches for those that need that function to pass emissions.
The only problem I have run into is some scan tools will freak out with something like a 2000 Fbody VIN in a 2004 PCM/OS.
As far as using efilive, I don't have it (used to have v1).
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Verdad Gallardo They are correct. The base OS has to be the same within the other tunes you are trying to pull the segment from. Meaning you can't pull up a 2004 C5 12587603 OS tune and swap in a 2006 Silverado 12606807 OS engine segment. It must be the same OS.
Is there a list anywhere that shows what OS's are in what? In my S10, I just changed to the 02 Suburban ECM so I can have the Flex Fuel. As you know, its only 2 bar. I would like to have the Blue/Red, flex fuel, 3 bar, setup, that I can eventually segment swap to a 4L80E as well. I have not done any segment swaps so far, but getting my feet wet in HPT.
Is there a list anywhere that shows what OS's are in what? In my S10, I just changed to the 02 Suburban ECM so I can have the Flex Fuel. As you know, its only 2 bar. I would like to have the Blue/Red, flex fuel, 3 bar, setup, that I can eventually segment swap to a 4L80E as well. I have not done any segment swaps so far, but getting my feet wet in HPT.
I got my hands on a 2005 Express 2500 6.0 ecm just for this goal. I think the hardware at least will get the job done, but with a different application OS. I need to go back and retread this thread to double check my facts.
On The Tree
Joined: Jul 2007
Posts: 113
Likes: 0
From: Largo, Fl
After 11 pages, Im about as clear minded as Ozzy Osbourne right now. I have a 1998 F-body:
I want to go 3bar SD, Flex fuel
Let me ask a few questions, and forgive my ignorance
Parts:
P59 PCM (12586243)?
Fuel sensor
wire harness for sensor
Repin:
I guess I will have to go to the 99+ setup, and maybe some other changes in order to accommodate the P59 PCM
Tune:
This is where Im confused...I plan on running HP Tuners. I see that the 04 GTO OS with the 05 Avalanche engine segment swap....or ??
I want to go 3bar SD, Flex fuel
Let me ask a few questions, and forgive my ignorance
Parts:
P59 PCM (12586243)?
Fuel sensor
wire harness for sensor
Repin:
I guess I will have to go to the 99+ setup, and maybe some other changes in order to accommodate the P59 PCM
Tune:
This is where Im confused...I plan on running HP Tuners. I see that the 04 GTO OS with the 05 Avalanche engine segment swap....or ??
Here's a good read for you:
https://ls1tech.com/forums/conversio...-6-0l-lq9.html
Make sure the P59 PCM has the correct drives for DBC. Find a enabled Flex file with the same OS that you want to run then use the Segment Swapper to load the Engine segments from the Flex file to your file. Wire in the Flex sensor (P56 blue) along with the ground and +12 volts. From my understanding the P01 and P59 share most of the same pinouts. I may be missing something cause I'm still learning how to hook this up too. This is info I found for a 2002 DBC vehicle.
https://ls1tech.com/forums/conversio...-6-0l-lq9.html
Make sure the P59 PCM has the correct drives for DBC. Find a enabled Flex file with the same OS that you want to run then use the Segment Swapper to load the Engine segments from the Flex file to your file. Wire in the Flex sensor (P56 blue) along with the ground and +12 volts. From my understanding the P01 and P59 share most of the same pinouts. I may be missing something cause I'm still learning how to hook this up too. This is info I found for a 2002 DBC vehicle.
Last edited by Monte4ever; Nov 17, 2016 at 07:25 PM.
Teching In
Joined: Jan 2014
Posts: 30
Likes: 0
After 11 pages, Im about as clear minded as Ozzy Osbourne right now. I have a 1998 F-body:
I want to go 3bar SD, Flex fuel
Let me ask a few questions, and forgive my ignorance
Parts:
P59 PCM (12586243)?
Fuel sensor
wire harness for sensor
Repin:
I guess I will have to go to the 99+ setup, and maybe some other changes in order to accommodate the P59 PCM
Tune:
This is where Im confused...I plan on running HP Tuners. I see that the 04 GTO OS with the 05 Avalanche engine segment swap....or ??
I want to go 3bar SD, Flex fuel
Let me ask a few questions, and forgive my ignorance
Parts:
P59 PCM (12586243)?
Fuel sensor
wire harness for sensor
Repin:
I guess I will have to go to the 99+ setup, and maybe some other changes in order to accommodate the P59 PCM
Tune:
This is where Im confused...I plan on running HP Tuners. I see that the 04 GTO OS with the 05 Avalanche engine segment swap....or ??
Same here bro! Seems like things were getting pretty clear and even got into pin out changes and went off track...
I am doing the same swap from 0411 pcm to the p59. I have the 6243 pcm part number from an 04 express van. Looks like it doesn't have 3 bar sd tune. So like I read elsewhere I'm thinking that I should put an 05 avalanche tune in it to go 3 bar for my LSA supercharger. I'm needing this pcm essentially for flex fuel which looks like it will be easy to add the sensor after the pcm is functional.
My question is regarding pinout changes fro red/blue to blue/green. From what I can tell it looks like there are some differences in O2 sensor wiring. Does anyone have a link, document, or something easy to follow for the pcm pin out changes? I bought a green pcm interface off eBay to move the wiring into. I've been reading this link and seems I need to do the reverse of this?
http://lt1swap.com/cable_conversion.htm
Also there's a lot of confusion on the OS... I currently have a 60e and will later go to an 80e so I guess I am concerned about later swapping segments for that.
Anyone made progress?
Is your 04 Express van a 5.3 flex fuel take out? I think from what I have seen/read, the only flex fuel in the van was a 5.3, and it was a option at that. If you have a different take out pcm than that, it may be totally different, not showing the correct HP Tuner options.
I may be wrong, I am just throwing out a idea. I still think we are all in the same boat, looking for a factory flex fuel with 3 bar and 80E control, spelled out. I just haven't made it far enough to be of any help with this so far, other than reading.
I may be wrong, I am just throwing out a idea. I still think we are all in the same boat, looking for a factory flex fuel with 3 bar and 80E control, spelled out. I just haven't made it far enough to be of any help with this so far, other than reading.
On The Tree
Joined: Jul 2007
Posts: 113
Likes: 0
From: Largo, Fl
Is your 04 Express van a 5.3 flex fuel take out? I think from what I have seen/read, the only flex fuel in the van was a 5.3, and it was a option at that. If you have a different take out pcm than that, it may be totally different, not showing the correct HP Tuner options.
I may be wrong, I am just throwing out a idea. I still think we are all in the same boat, looking for a factory flex fuel with 3 bar and 80E control, spelled out. I just haven't made it far enough to be of any help with this so far, other than reading.
I may be wrong, I am just throwing out a idea. I still think we are all in the same boat, looking for a factory flex fuel with 3 bar and 80E control, spelled out. I just haven't made it far enough to be of any help with this so far, other than reading.
https://ls1tech.com/forums/pcm-diagn...questions.html
https://ls1tech.com/forums/pcm-diagn...-write-up.html
https://ls1tech.com/forums/conversio...-6-0l-lq9.html
I got my. P59 flex fuel up and running in my T56 24x 94 z28 LT1. Everything is working including tach AC reverse lockout and pcm controlled shift light. using a 2003 Suburban flex fuel file and a manual trans segment swap. The oem flex fuel timing table has alot of spark retard in the lower half, should I use some spark retard in the lower cells or change it?
Last edited by i420tom; Mar 13, 2017 at 09:28 AM.