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1G Can't escape open loop, ecmlink v3

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vt03gts

Probationary Member
8
0
May 3, 2010
sb, Vermont
Hey guys, I'm having some issues with my 92 eclipse gsx. I can't get the car to go into closed loop mode anymore and it runs so rich it fowls plugs. Can't drive the car at all.

MODS:
ECMLink v3
AEM EUGO Wideband as front o2 sensor
GM 3" MAF
880cc injectors
Aeromative FPR

1. I found that when logging in ECMlink that the front o2 was reading 0 volts. So I bought a brand new Wideband sensor to fix it. This made absolutely no difference.

2. I researched and found that the UEGO gauge has built in narrowband simulation, and set the gauge to the proper setting (P04). I also tested all grounds and verified everything was connected properly. Somewhere in doing this I ended up getting real readings, however the car still runs at 10.6 on the gauge.

3. I attempted to run narrowband simulation in ECMLink (I'm still learning) and this resulted in the gauge maxing out at 1v

I'm sort of at a loss of what to do now so I hope someone can help me find something in the logs I provide

First Log is from when I first got the car and it was running good

Second Log is from today with Narrowband Simulation through LINK (AEM UEGO at P00)

Third Log is from today with Narrowband Simulation through UEGO gauge (p04)
 

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Last edited:
you have your front o2 to be a map sensor.. make that undefined and try again. Also in your DA tables, make the LTFT Select table, make the "high off" be like 1500.

And your MAF comp table needs a lot of work.
 
Thanks you for the response, I will give that a try tomorrow morning. As far as the MAP sensor setting that's probably something I just messed up today when trying to set it to simulate narrowband. I'm just confused as to why any of this would be different from when the car was running good. I didn't mess with anything in link up until now

**also forgot to mention that I'm running a GM 3" MAF***
 
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