WOT/PE Mode using Datamaster
Thread Starter
Pro
Joined: Aug 2000
Posts: 700
Likes: 1
From: Florida
WOT/PE Mode using Datamaster
Hello all
How can I tell at what point Datamaster is displaying results in PE/WOT mode? While viewing one of my runs, I was expecting the field to change from Closed loop to Open loop at least at a point when my TPS was at 89 percent and the MAP was in the 93 range. Even the o2 sensors were not static. I know I'm missing something just not sure what it is.
Thank you
How can I tell at what point Datamaster is displaying results in PE/WOT mode? While viewing one of my runs, I was expecting the field to change from Closed loop to Open loop at least at a point when my TPS was at 89 percent and the MAP was in the 93 range. Even the o2 sensors were not static. I know I'm missing something just not sure what it is.
Thank you
Race Director
Joined: Sep 2003
Posts: 16,838
Likes: 341
From: Database Error Indiana
I use Datamaster on my 87. The O2 sensors dont go static. It doesnt just go to open loop. If you look at the A/F ratio #s you will see when its in PE. At least thats what I do. It should be programmed for richer A/F in PE mode.
Pro
Joined: Sep 2001
Posts: 542
Likes: 1
From: Stuck in the 80's
IIRC the ECM does not really go "open loop", it just ignores the O2 sensor feedback. I don't use Datamaster but the way I tell is when my scan tool shows the BLM and INT locked on 128. Your labels may be different but the same should apply. My O2's are typically high 800's to low 900's at WOT. 
Thread Starter
Pro
Joined: Aug 2000
Posts: 700
Likes: 1
From: Florida
I gotta say.. that Datamaster program is great. I was using Diacom, but
this Datamaster is soooooooooo much better in every way.
I'm trying to determine if there's a relationship to specific cells while in PE mode. So far it's cell 15.
Thanks again
this Datamaster is soooooooooo much better in every way.
I'm trying to determine if there's a relationship to specific cells while in PE mode. So far it's cell 15.
Thanks again
Drifting
Joined: Mar 2005
Posts: 1,923
Likes: 0
From: GA
Originally Posted by 93LT1
I gotta say.. that Datamaster program is great. I was using Diacom, but
this Datamaster is soooooooooo much better in every way.
I'm trying to determine if there's a relationship to specific cells while in PE mode. So far it's cell 15.
Thanks again
this Datamaster is soooooooooo much better in every way.
I'm trying to determine if there's a relationship to specific cells while in PE mode. So far it's cell 15.
Thanks again
Drifting
Joined: May 2003
Posts: 1,730
Likes: 1
From: Charlotte NC
St. Jude Donor '05
Originally Posted by 93LT1
Hello all
How can I tell at what point Datamaster is displaying results in PE/WOT mode? While viewing one of my runs, I was expecting the field to change from Closed loop to Open loop at least at a point when my TPS was at 89 percent and the MAP was in the 93 range. Even the o2 sensors were not static. I know I'm missing something just not sure what it is.
Thank you
How can I tell at what point Datamaster is displaying results in PE/WOT mode? While viewing one of my runs, I was expecting the field to change from Closed loop to Open loop at least at a point when my TPS was at 89 percent and the MAP was in the 93 range. Even the o2 sensors were not static. I know I'm missing something just not sure what it is.
Thank you
A way to tell your in PE is to watch the INT values. If they shoot to 128 than your there. BLM's can be something other than 128 in PE.
Pro
Joined: Jan 2005
Posts: 686
Likes: 62
From: San Jose Ca
Also, at least with the version that I have (EE) there is a PE Enabled parameter in the upper right portion of the screen where the other on/off parameters are displayed. Additionally, you can assign them to just about any on/off function. BTW, my closed loop status does not change when entering PE mode.
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