Why does my o2 sensor say not ready?
If the oxygen sensor and catalyst monitors are also not ready, the culprit is most likely a weak battery. If your battery is more than four years old, replace it and re-run the Drive Cycle. Even though your car may start just fine, the PCM is hypersensitive to the slightest glitch in the battery.
What should I do if my O2 sensor is not ready?
The O2 Heater should be one of the first to become ready and if your O2 is not ready, chances are your catalyst is not ready either… What Pep boys is telling you to do is to try to complete a drive cycle.
How does the O2 sensor in a car work?
The O2 sensor in your vehicle monitors the exhaust gases coming out of the engine. It determines the amount of oxygen in the gases, which indicates how well the fuel is being burned. The O2 sensor then sends information to the electronic control unit, or ECU, the vehicle’s computer.
Why did my car fail the smog check?
It failed the smog check because there is no data; the tech said no monitors. I drove it 250 miles and it failed the smog check again. I drove my car for another 110 miles and took it to Honda dealer to check the monitors. They said it will cost me $320.00.
Why does my O2 heater not show Ready?
All Smog related equipment is turned ON in his tune. It’s completing the Catalyst monitor which indicates the rear O2’s are working. I do not know why the O2 heater is not completing. We do not have access to the O2 test monitors via SCT. (different than Catalyst monitors).
Why is the oxygen sensor not ready for the drive cycle?
These constantly monitor the sensors, the fuel mixture, and the occurrence of misfires. If the oxygen sensor heater monitor is not ready, check to see how many other monitors are not ready. If the oxygen sensor and catalyst monitors are also not ready, the culprit is most likely a weak battery.
Why is my heated 02 sensor not ready?
Heated 02 Sensor & Evap Not… Changed out battery. Due for AZ emissions 2 days later. 02 Heat Sensor & Evap sensors showing Not Ready. Have driven car over 500 miles & had 3 emissions tests (they just told me to keep driving each time). No Check Engine lights. I have a code reader & no codes.
It failed the smog check because there is no data; the tech said no monitors. I drove it 250 miles and it failed the smog check again. I drove my car for another 110 miles and took it to Honda dealer to check the monitors. They said it will cost me $320.00.
Why does the O2 sensor go up and down?
I would get a scan tool on it and see what the B1S1 is doing. Something is amiss. After initial startup, your car is in open loop, hence probably why the rpms go up and down. When it gets in closed loop, the O2 sensor and other sensors data take over fuel management.