Fuel System Monitor Dilemma Unraveling the Causes of Its Stalled Status

... my monitors to enable except for the fuel monitor. I ... #5. So i found some good info on why the fuel system monitor might not be ready A lot of OBD readers will have a section that shows a list of monitors that show which ones are ready, which ones are not ready yet, and a few ... Did you recently pull the battery? Generally most modern cars require you to complete a certain number of specific drive cycles. This ... But normally the evap drive cycle to complete you need more than 1/4 tank of gas but not more than 3/4 tank of gas, it must sit over night, and ... Also related to the OBD II system are “Readiness Monitors”. Monitors are not physical devices, but rather programs within the on-board computer(s) that relay to ... monitors the performance of the ignition, fuel metering and emissions systems, including the ... the correct drive cycle for the monitor that is “not ready” for. 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. 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 ... I can have that one show not ready. Fuel system must show ready to pass smog.I have replaced the fuel cap, battery, fresh fuel multiple times, ... So even after two weeks and 550 miles, the catalyst monitor is still not set. I ... Evaporative system monitoring: Not installed. Secondary air system ...