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View Full Version : Heated O2 sensor readiness monitor won't run



Patr1ck
08/07/2015, 03:54 PM
Has anyone had any experience in getting their VX to run its heated O2 sensor readiness monitor? Mine is not cooperating, all other readiness monitors have run except for the EVAP monitor. I need to get one of these two monitors to run so I can pass emissions and register it.

Patr1ck
08/09/2015, 04:47 PM
I ended up having to use a 2200 ohm resistor on the IAT sensor to fool the ECU into thinking it was cooler out than it was. 2200 ohms translated to 87°F. Ambient temp was around 100°F here near Phoenix. This allowed it to run enough readiness monitors to pass emissions.