MitsuStyle - View Single Post - 02 gauge not reading after removal of rear 02

**1ViciousGSX** · 06-23-2006

Are you feeding the wide-band into the stock ECU? If not, just plug the rear O2 sensor back in. A stock ECU will not look at a wide-band the same as it would a narrow-band sensor. A narrow-band sensor is more of an on-off signal where the wide-band is in real-time.

What this means is that the ECU is looking to calibrate it's low & mid LTFT fuel tables so the O2 sensor bounces over and under .5v while in closed-loop operation. A wide-band sends a signal of 1-5v based on the actual fuel mixture with no on-off.

06-23-2006	#5
1ViciousGSX Admin Join Date: Oct 2003 Location: Sportsman's Paradise, LA. Posts: 5,382	Re: 02 gauge not reading after removal of rear 02 Are you feeding the wide-band into the stock ECU? If not, just plug the rear O2 sensor back in. A stock ECU will not look at a wide-band the same as it would a narrow-band sensor. A narrow-band sensor is more of an on-off signal where the wide-band is in real-time. What this means is that the ECU is looking to calibrate it's low & mid LTFT fuel tables so the O2 sensor bounces over and under .5v while in closed-loop operation. A wide-band sends a signal of 1-5v based on the actual fuel mixture with no on-off. __________________ My new band: Fall of August Click Me --> "V" <-- Click Me "You don't have a clue. You couldn't get a clue during the clue mating season in a field full of horny clues if you smeared your body with clue musk and did the clue mating dance." When she get's bitchy, SPANK THAT ASS! (#Y#)