Wayne H.
'91 Dodge Spirit ES 2.5L turbo 5spd
'05 PT GT 2.4T HO autostick (RIP)
'89 Plymouth Acclaim 2.5L turbo auto, "Slugmobile" yes, THE Slugmobile!
'89 Dodge Caravan SE 2.5L turbo auto, "Mean Mini" yes, Gus' Mean Mini! (Current best 11.699 @ 114.43 mph! - Oct 15th, 2022 Cecil County Dragway, MD)
MeanMini dragracing videos: https://www.youtube.com/playlist?lis...URZLB1RxGYF6vw
and other cars, trucks and motorcycles
https://www.youtube.com/user/SlugmobileMeanMini
Never thought of the during warmup output of the wideband. On the TechEdge it is set to default to a 14.7 output during warmup so I have never had an issue.
Ian Adams Function>Form 1990 shadow scrapped, too rusty:( 1991 Spirit R/T Scrapped, parts sold:( 1989 Turbo Caravan Daily beater with built-[I]ish [/I]engine slowly evolving into weekend turbo beater.
Wayne H.
'91 Dodge Spirit ES 2.5L turbo 5spd
'05 PT GT 2.4T HO autostick (RIP)
'89 Plymouth Acclaim 2.5L turbo auto, "Slugmobile" yes, THE Slugmobile!
'89 Dodge Caravan SE 2.5L turbo auto, "Mean Mini" yes, Gus' Mean Mini! (Current best 11.699 @ 114.43 mph! - Oct 15th, 2022 Cecil County Dragway, MD)
MeanMini dragracing videos: https://www.youtube.com/playlist?lis...URZLB1RxGYF6vw
and other cars, trucks and motorcycles
https://www.youtube.com/user/SlugmobileMeanMini
ok, so to sum up: ( this is how I understand it from this thread, please correct me if I've got something wrong )
NarrowBandOffsetValue -- Only needs to be changed to make part throttle leaner or richer if during closed loop operation ( couldn't I just use the standard fuel tables to accomplish the same goal? )
WidebandAFRToO2TransferFunction -- Needs to be left alone. This uses measured AFR from the WB and converts to NB signal for the rest of the cal to use ( This will work as long as your WidebandAFRTransferFunction is setup to match your brand of WB output 0-1v or 0-5v )
WidebandAFRTransferFunction -- Needs to be setup to match the output from the WB. This can be 0-1v or 0-5v as long as it matches your WB input v with AFR
All correct.
To answer your question (couldn't I just use the fuel tables...); No. Even if you lean out the fuel tables, the O2 controller will try to get the AFR closer to the controllers limits (very near stoich).
The offset value I added will make the O2 controller think that its running near stoich, when in reality its richer or leaner.
Note: By default the offset value is set at -2.5v, this needs moved to zero for correct operation.
Ian Adams Function>Form 1990 shadow scrapped, too rusty:( 1991 Spirit R/T Scrapped, parts sold:( 1989 Turbo Caravan Daily beater with built-[I]ish [/I]engine slowly evolving into weekend turbo beater.
Wayne H.
'91 Dodge Spirit ES 2.5L turbo 5spd
'05 PT GT 2.4T HO autostick (RIP)
'89 Plymouth Acclaim 2.5L turbo auto, "Slugmobile" yes, THE Slugmobile!
'89 Dodge Caravan SE 2.5L turbo auto, "Mean Mini" yes, Gus' Mean Mini! (Current best 11.699 @ 114.43 mph! - Oct 15th, 2022 Cecil County Dragway, MD)
MeanMini dragracing videos: https://www.youtube.com/playlist?lis...URZLB1RxGYF6vw
and other cars, trucks and motorcycles
https://www.youtube.com/user/SlugmobileMeanMini
Thanks guys.
I noticed that I can't change it to 0 in the table, I have to use the slider to set it -0.010 or 0.010 I assume that's close enough but when I tried to type 0 in the table it told me that's an invalid point...is this because 0 on the table isn't 0 on the slider/scale.
Also, once I tried to type something in the table it wont let me save and no value is valid..just keeps throwing the error..says it saves, but value is the old value when i reopen the template.
I'm just mentioning this in case someone runs into it.
definitely a problem in mpt2. i'll need to look at it this weekend. i'm able to get some other weird errors also. it's using a table type that has not been really tested before so i need to figure out what's happening. sorry.
***edit****
just posted version 2.0.4.3. start mptune, give it 10 - 15 seconds, exit and it should update. then get back in, make sure its version 2.0.4.3 and you should be good to go.
Last edited by wowzer; 04-24-2015 at 02:38 PM.
89 Voyager LE, 2.5T2 - rest in peace
87 Charger Shelby T2 (2.4 conversion in process)
ok, cool. I'll try to get it wired up this weekend and give it a try.
ok, wiring is done, new cal is on the ecu. Started but not driven yet.
MPScan still shows 20.0:1 for AFR.
Is there anything that needs to be changed on the settings for the gauge?
I have it mapped to AFR ( 206 )
Last edited by player1up; 04-24-2015 at 08:44 PM.
Huh?
I know the AFR yellow line in MPTune is a visual representation of how it's manually configured for the cal in the "AFR Settings"
The tune is configured to match the WB output and seems to be running fine, but I can't log actual AFR in MPScan. I suppose I should try o2v
I've got no problem setting up logging with hyperterm from the AEM, but thought I could log with MPScan so I could have all of my tuning info in the same place at the same time
***UPDATED****
Not sure what I did but AFR (afr) is working now, but it's off by 4-5 points and O2v shows correctly...meaning .9v matches the afr on the AEM gauge but AFR ( 206 ) in MPscan shows 15ish
The AFR settings in MPScan wont let me make any changes
Last edited by player1up; 04-25-2015 at 07:38 PM.