Turbotweak 5.6 closed loop low o2's

the wrath

Active Member
Joined
Sep 29, 2002
When car goes into closed loop the o2's say a in the 000-045 range at idle until you blip the throttle. The when it goes back to idle it still stays in the low 000 range.

O2 sensor has been replaced with new denso. No difference.
 
Version 5.6, so it's an old chip.

Was the chip made specifically for the car and injectors?

What is the BLM at idle?
 
140. And it's a 5.7 chip I made a mistake.

And the chip was for this car. I pulled the computer and it had corrosion on the ecm pins.

Car runs butter but runs very rich at idle now.
 
The BLM of 140 means the computer saw a lean condition and added fuel to fix it.
What is it that's telling you its rich?
 
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