PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

c5 flex fuel questions

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Old Nov 7, 2016 | 11:09 PM
  #61  
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Originally Posted by subeone
And yeah the table has less resolution, you can normalize the KPA values to gain more resolution down low, and less up in higher kpa values. If you arent sure on how to normalize i can show you, i do it all the time on e38s

ok i def need better resolution down in the idle and cruise cells. can you enlighten me?

thanks for all your help on this. been playing with this idea for a couple years and pretty excited to see it happening.
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Old Nov 10, 2016 | 08:40 PM
  #62  
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hey can you send me that tune so I can add that segment to my N/A truck?
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Old Nov 11, 2016 | 02:44 PM
  #63  
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Originally Posted by truckdoug
hey can you send me that tune so I can add that segment to my N/A truck?
I screwed something up and can't access the damn table SMH. I'll try when I get off work to see if I can.
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Old Nov 11, 2016 | 06:25 PM
  #64  
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Originally Posted by truckdoug
hey can you send me that tune so I can add that segment to my N/A truck?
I sent you a PM. To add to that - I think the next Beta upgrade will show that table in 125 OS. Right now you would need the 3.3 Beta version to view it.

Last edited by Monte4ever; Nov 11, 2016 at 06:39 PM.
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Old Nov 11, 2016 | 10:04 PM
  #65  
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word, got your pm. I'll wait for the newest revision to come out
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Old Nov 14, 2016 | 06:01 PM
  #66  
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HP has a new version out, got a email today. Thanks for all of this helpful info guys! If anyone can post a tune up for a 3bar that has the timing setup for boost with the FF I would appreciate it. I will be doing mine soon, and am a little unsure of all of these settings, and will be tuning it myself.
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Old Nov 15, 2016 | 02:59 PM
  #67  
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Originally Posted by truckdoug
word, got your pm. I'll wait for the newest revision to come out
Didn't you upgrade to the 3.4 version? The table has been added.
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Old Nov 16, 2016 | 08:35 AM
  #68  
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Great Info... Subscribed... FF is on my winter mod list.
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Old Nov 17, 2016 | 07:05 PM
  #69  
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Originally Posted by ryanleiker
Great Info... Subscribed... FF is on my winter mod list.
Same here. Gathering parts now.
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Old Nov 17, 2016 | 08:50 PM
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Winter Mod list....I love that. This is our racing season! (At least the un-sanctioned kind). Weather is in the mid 70's during the day, low 60's at night. In the dead of winter, we will see bone chilling cold of low 40's, just terrible.
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Old Nov 18, 2016 | 12:07 AM
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been receiving TONS of PM's over this. All the info is in here theres nothing im keeping from anyone.
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Old Dec 29, 2016 | 06:15 PM
  #72  
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Originally Posted by subeone
been receiving TONS of PM's over this. All the info is in here theres nothing im keeping from anyone.
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 going to 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
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Old Dec 30, 2016 | 12:14 AM
  #73  
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Originally Posted by bryanwood74
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 going to 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
all the info is in that link.

you need to swap the "plastic tab" on the connector since the green and blue plastic tab has a different slot so it can slide in the pcm, you can easily remove it with a small eyeglass screwdriver, flathead preferred.

As for as o2 wiring, yes, you have to do small changes to the wiring for the OPS, and the o2 sensors work if i remember correctly. I dont really care about the o2s or the OPS since i got rid of them and run OL all the time, and have a mechanical gauge to replace the OPS.

but all of the info you need to know is in that link.

Your car will run, start up and drive fine without doing ANY changes to your harness tbh. You just need to tune some stuff out, but thats for your tuner to handle.
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Old Dec 30, 2016 | 10:25 AM
  #74  
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May I humbly request a MOD create a sticky thread for flex fuel and put this thread and the F-body flex fuel thread in there? I can only imagine the number of times people will search for these things, and there is so much good info in here.

And maybe reduce Subeone's PM load a smidge?
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Old Dec 30, 2016 | 06:40 PM
  #75  
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haha bryanwood47 sent me a pm after posting here, so yea lets sticky this once and for all so i dont have to constantly be checking my pm's. lol.
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Old Dec 30, 2016 | 10:13 PM
  #76  
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Got my vote too. Really good info in this and the 4th gen thread. I'm almost done with mine. Can't wait
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Old Dec 30, 2016 | 10:20 PM
  #77  
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+1 vote for sticky

excellent thread.
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Old Dec 31, 2016 | 05:37 PM
  #78  
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Absolutely! Sticky sticky sticky!
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Old Jan 1, 2017 | 12:22 AM
  #79  
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Also, should link the other scatteted threads relating to this topic.
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Old Jan 11, 2017 | 12:31 PM
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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.
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