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CivicVXer · 11-10-2010, 02:47 PM

I tried a few things to no avail. However, unplugging the O2 sensor clears it right up. Only problem is, that will kill gas mileage. With the O2 sensor unplugged, I'm guessing that it may also deactivate the VTEC-E system which allows the ultra lean 20:1 A/F ratio. I'm going to plug the O2 sensor back in and unplug the VTEC solenoid and see what happens. If I get the same result, then there must be some malfunction in the VTEC-E system. If not, the O2 sensor must be bad.

11-10-2010, 02:47 PM	#16 (permalink)
CivicVXer EcoModding Lurker Join Date: Nov 2010 Location: MD Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts	I tried a few things to no avail. However, unplugging the O2 sensor clears it right up. Only problem is, that will kill gas mileage. With the O2 sensor unplugged, I'm guessing that it may also deactivate the VTEC-E system which allows the ultra lean 20:1 A/F ratio. I'm going to plug the O2 sensor back in and unplug the VTEC solenoid and see what happens. If I get the same result, then there must be some malfunction in the VTEC-E system. If not, the O2 sensor must be bad.