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-   -   Datalogging AFR doesn't work, everything else does (https://www.homemadeturbo.com/engine-management-10/datalogging-afr-doesnt-work-everything-else-does-42119/)

HMTguy 07-03-2005 12:51 PM

Datalogging AFR doesn't work, everything else does
 
I'm running uberdata 1.7 on a P28 ecu. I can datalog everything great, except for my AFR that I am feeding into the ecu via LM-1. I get junk numbers usually between 8-10 and it just jumps all around so I know it's crap. I am running about 15.1:1 at idle. Any ideas why this is happening? The chip was burned with closed loop disabled, I have it tapped into D14 on the ecu.

SpankedYA! 07-03-2005 01:44 PM

Re: Datalogging AFR doesn't work, everything else does
 
Did you tap D14 or cut it and then connect?

HMTguy 07-03-2005 02:21 PM

Re: Datalogging AFR doesn't work, everything else does
 

Originally Posted by CSaddict
Did you tap D14 or cut it and then connect?

Cut it completely and connected to the LM-1. I was told the red wire is for Aux ouput 2 (wideband). Could this perhaps be the narrowband output?

pa2play 07-04-2005 09:49 AM

Re: Datalogging AFR doesn't work, everything else does
 
i never got my LM-1 to datalog right either. I tried EVERYTHING that ANYONE told me and nothing ever worked. You do have to program the analog outputs on the LM-1. I was told to program them to
0v 7.39 a/f
5v 22.09 a/f
You can try that, heres a link to a post I put up on Uberdata forum, info that other gave me http://uberdata.pgmfi.org/forum/index.php?board=5;action=display;threadid=3373


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