Fuel System Monitor Unresponsive? Uncover the Hidden Gremlins

You can also force a DPF regen through Carly if that would help you get that particular monitor ready and within the passing limit mentioned above more quickly. Did you recently pull the battery? Generally most modern cars require you to complete a certain number of specific drive cycles. This ... The EVAP monitor will only run if the fuel level is between about 1/4 and 3/4. It will not run on a full tank, or a near empty tank. I went to have the truck inspected and initially it failed emissions because the NOX/SCR Monitor and Exhaust Gas Sensor were listed as not ready. This test is done automatically in the middle of the night, when it is not being driven, after the engine has fully cooled down, and it repeats ... It failed because of "fuel system not ready " code on their scanner. They gave me 30 days extension and said ride it more often since no check engine light. Ensure the fuel level is between 1/4 and 3/4 tank · Park the car for over 10.5 hours (typically left overnight). Must be between 40-113°F ambient ... Now, switch the rear defroster and ac off and keep the speed of your vehicle at 90 km/hr (55MPH) nearly for 3 minutes. During this period, the purge and Fuel ... You might have a tune. I had an issue with OBD readiness on another car that was tuned and needed to remove the tune for smog. Issue #1: -After doing the driving sequence for 3 times, everything was ready, but FUE (Fuel System) monitor was not ready. ... Issue #2: - ...