THE OBD1.5 to OBD1 Conversion Thread

[ForcedFirebird]

'93 F-body...check.

I talked to someone recently that converted his 4l60e to non-e by changing the valve body. Need to get more info

[robertisaar]

thats awesome. so now the 94-95 auto have a way of getting tuned. or does that mean just the shift solenoids?

[robertisaar]

a little something to help the community...

RTFM!

it's a readme, but still.

i have it split into 3 archives since the forum will only allow up to 97.7KB ZIPs...

[IsaacHayes]

I just opened the first zip there. Theres some nice stuff that Robert has been working on in there that makes tuning reeeealy easy. I'm putting together a guide for the L bodies that has the pinout info, what tools for OBD1 you need, and what to change in the DF bin to get started as well as how to tune. Sort of an all in one, but can be applied to W/N bodies too since the pinout table has that info and I show how to calculate the values needed for VSS/etc.

[robertisaar]

planning on posting in here, or a new thread? if new, post the link, that way the 3400+ people that have viewed this thread can find it easier. i'm sure a lot of them are L/N cars... i'm sure all the F-car fanatics are following john's thread.

[IsaacHayes]

I can post it here. And I'll post it on bstuff/bnet... It will be posted once the car is running on OBDI... The damn rain here has put a halt to any work on the car. Really making me mad. There is stuff I HAVE to get done and in a certain order before winter.

[SappySE107]

I am removing the filesize limitation on all uploads. If this becomes a problem we will set limits to whatever is best.

[robertisaar]

AWESOME, i only have 3.4 Terabytes of (car) porn to upload...

i did find a flaw in my ADX though. when importing from ADS, the lookup tables have an issue. fixed in this version, removing the old one.

tired out the autotuning on the GP tonight. i am pleased with the results. note: i would use the following settings for the histogram.

10 sample history
EDIT: History average. running average ignores the 10 sample limit.

that combo seemed to provide the best results. be sure to clear out the BLM and INT tables from when it's warming up.

i got about 126-130 BLMs going from a stock VE table with just two logs...

[IsaacHayes]

Is the one I have outdated then? I'll just download it all later to be sure. A good idea is not to data log until it's warmed up anyway. Less stuff to weed through in the log anyway. Two logs, wow that's pimp!

So don't use the latest value instead use history average? Hmmm.

[robertisaar]

Is the one I have outdated then? I'll just download it all later to be sure. A good idea is not to data log until it's warmed up anyway. Less stuff to weed through in the log anyway. Two logs, wow that's pimp!

So don't use the latest value instead use history average? Hmmm.

not sure which version i've sent you, i make LOTS of little changes without documentation. yeah, waiting for full operating temp will make things simpler. eventually you'll want to log from a cold start up to op temp, but thats after you have everything dialed in normally.

yes, use the 10 sample average. latest value can always be a little off due to how the INT operates. making a long sample average has its own issues, mostly with it taking time for the BLM to react due to INT changes. you could always shorten the BLM reaction time to .05 seconds or something, but that could cause issues if you have a sensor go bad.

so. i've determined for my intent and purposes, the last 10 samples(which is about 1 second of logging) per cell is working great.

[IsaacHayes]

That makes sense. I'm excited I just need time, space, and no rain!!!!!!!!!

[robertisaar]

ok, just added the witchhunter injector calc, a NB O2 to Actual AFR table and the actual conversion guide to the archive. deleting old version, posting new version here.

also: i'm posting a link to all of the ADS/ADX/XDF and BINs i have used, made or found. you'll also find the starter guide there as well, but in 7Z format instead of ZIP.

http://www.teradepot.com/robertisaar/2747/TunerPro%20Stuff

EDIT: deleted the old starter pack from here, put a new one in post#1.

[ForcedFirebird]

these are from a 92 lumina 3.1, which unless i'm wrong, is A1...

saw some of the J-bodies with the 7730 and A1... almost sent those

i certainly am a productive member of this community...

Unless I missed it, I never did see the '7730 pinouts. I have them from another source, but like the ones you have. Makes them easier to cross reference

And yes, we bow to you Robert

[robertisaar]

did i never post the 7730 A1 pinout? sorry, thought i did at some time...

[ForcedFirebird]

I was searching for them when I stumbled across that post. You almost posted the $a1 '7730 instead of the $a1 '7727.

I have the pinouts from a long time ago, but like the alldata much better. It's more uniform for what we are doing here.