![]() ![]() The reason is that the emission control system is deactivated and cannot check fuel vapor leaks. The EVAP Monitor Not Ready notifies you that your precious vehicle might not pass emission checks. Fuel System Monitor Not Ready: Meaning, Causes, Fixes.Oxygen Sensor Not Ready: Meaning, Causes, and Fixes.6 Steps to Fix Catalytic Converter not Ready.Secondary Air System not Ready: Causes and Fixes.But if other readiness monitors are also incomplete, your car will not pass an emission test until all OBD II readiness monitors are “ready.” You can pass an emission check if that’s the only unready monitor. ![]() If my EVAP monitor is not ready, can I pass an emission test? Your vehicle’s computer cannot perform a self-test to check the EVAP system’s functionalities. The throttle position sensor range should be 0.09% and 0.3%įAQs What does “EVAP Monitor Not Ready” mean?.Likewise, the temp value of the ECT sensor should not be -11☌ (12℉) higher than the IAT sensor. However, the temp value of IAT should not be -16oC (2℉) higher than ECT.The temp values of the Intake Air temperature (IAT) sensor and engine coolant temp (ECT) sensor should be 7 degrees Celsius (45℉) and 29 degrees Celsius (85℉), respectively.Ensure the malfunction indicator lamp (MIL) is in OFF status before starting the cycle.To run the monitor, drive your car around for 10 minutes at 45 to 65 mph on the highway.Ensure the ignition voltage is between 11 and 18 volts.Barometric pressure must be above 75 kPa. ![]() The ambient temperature must fall between 30 and 95 degrees.
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