MS3x Ran fine on Brain's Basemap, now it barely idles or just dies
#1
MS3x Ran fine on Brain's Basemap, now it barely idles or just dies
Car is a 1996 NA. I just finished installing my MS3x into the car, did the IAT GM sensor wiring, Map sensor, and wideband, base timing. I loaded up the tune file and it started and ran great. AFRs looked to be in order and they did not go lean. But, I had one problem the AC was on all the time, so I checked out my wiring harness to see that it was a bad solder joint. so I resoldered it, and now the a/c works with the switch. Installed the harness back into the car, and now the car does not want to idle, and whenever I give the car gas it goes very lean. When I keep the gas at a constant of around 10-12% the car hunts between 2200 rpm all the way down to 800, this fluctuates and the AFRs go between 13-14 to 18-19 respectively. I tried to drive it around the block but the car ended up bucking uncontrollably. Sometimes when I start the car it will idle to 850ish and then just drop out and die. I noticed my IAC valve was humming very loud, louder than usual, don't know if the IAC will just go bad like that? I would like some help with this as I have been trying to figure it out for the past few hours and couldn't find any writeups that had my same issue.
Tune file and Log file are below
Tune file and Log file are below
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Gary Bagley
MEGAsquirt
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11-07-2018 01:33 AM