PE & OLFA (pid)
there is not pid you can tell the car is in open loop when you see FTC 22. when you see this the car is pulling from the OLFA table and if the computer needs pe it will pick the richer of the two values
You'll need to log commanded AFR, and make sure the two tables are set to different values. As stated above, the PCM picks from the richer of the two. When mine goes into PE mode, the commanded changes from ~14.7 to ~12.8 on the computer screen.
I've never heard of one that will tell you which
one is the source, but the Fuel Air Multiplier is
the result of all the juggling and by also logging
RPM, MAP and ECT you can tell which one it was,
by which one's axes point to the FAM value seen.
Unless you have the adders / multipliers chiming
in, then it gets to be messy.
one is the source, but the Fuel Air Multiplier is
the result of all the juggling and by also logging
RPM, MAP and ECT you can tell which one it was,
by which one's axes point to the FAM value seen.
Unless you have the adders / multipliers chiming
in, then it gets to be messy.
Thread Starter
Joined: Nov 2001
Posts: 3,066
Likes: 0
From: Sunny San Diego
Then I am confused. My AFR is still in the 10's. So I scaled down my PE. That help a bit. But then it wouldn't lean out anymore. Ok, lets start scaling down the olfa. Nope, I can't get the AFR out of the 10's.
What else would be keeping it that rich?
What else would be keeping it that rich?
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
TECH Addict
Joined: Jul 2002
Posts: 2,261
Likes: 0
Originally Posted by Ed Blown Vert
What is the name of the pid that tells you which table it is using when in open loop?
SAE.FUELSYS
This will show you what the PCM is commanding. There is a nice explanation in EFILive 7 Scan.
I stand corrected bink is da man. I forgot about that pid because i needed to make room for other stuff. That pid in efilive will tell you that status eg Open Loop drive, open loop fault and a few other statuses
Thread Starter
Joined: Nov 2001
Posts: 3,066
Likes: 0
From: Sunny San Diego
Originally Posted by HumpinSS
I stand corrected bink is da man. I forgot about that pid because i needed to make room for other stuff. That pid in efilive will tell you that status eg Open Loop drive, open loop fault and a few other statuses
Thread Starter
Joined: Nov 2001
Posts: 3,066
Likes: 0
From: Sunny San Diego
Originally Posted by SSpdDmon
Your problem may not be with either the PE or OLFA table. Cat. Converter Protection will command a really rich AFR if it's still enabled.
Ed, is the problem you can't get the actual afr to go leaner or you can't get the commanded afr to go leaner then 10's? If you want you can send the file this way and maybe I can take a look at it. Two sets of eyes are better then one on some things.
Originally Posted by Black02SS
Ed, is the problem you can't get the actual afr to go leaner or you can't get the commanded afr to go leaner then 10's? If you want you can send the file this way and maybe I can take a look at it. Two sets of eyes are better then one on some things.
Thread Starter
Joined: Nov 2001
Posts: 3,066
Likes: 0
From: Sunny San Diego
Originally Posted by Black02SS
Ed, is the problem you can't get the actual afr to go leaner or you can't get the commanded afr to go leaner then 10's? If you want you can send the file this way and maybe I can take a look at it. Two sets of eyes are better then one on some things.
So far everything is working well, except for this last item.
Originally Posted by Ed Blown Vert
I can't get the actual afr to go leaner. I have a wideband on the car. The problem may be I tune the old fashion way when LS1edit was the only thing out there. So I scale the IFR to get my LTFT's negative.
So far everything is working well, except for this last item.
So far everything is working well, except for this last item.
