Why Your Fuel System Monitor Plays Hide-and-Seek Unmasking the Mystery

The fuel level being empty, and now full, may have a lot to do with your troubles. Once it gets down to around 3/4 tank, I'd start watching the ... Issue: You may come upon a vehicle readiness issue in which only the fuel system monitor is not ready. Summary: Beginning with model year 2011, ... If only the fuel system monitor is not ready, you may want to try the following short generic drive cycle (not vehicle-specific) that DEP ... My jeep failed NJ inspections (emissions) for “Fuel System Not Ready”. After completing 2 drive cycles it was still reading not ready on my pocketscan. The " Catalytic, Evap, 2nd Sys, O2 Sensor (both heated & non-heated), and EGR System are all marked as not ready." Those all require specific ... If the PCM reads more or less fuel than that the evap monitor WILL NOT start and this has to be done twice with a minimum of an 8 hour cool ... have the fuel tank between 30 and 70 percent full. some systems, especially the evap system, need to have a specific level of fuel in order for ... 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. Most likely it's the drive cycle, a lot of people have found that it takes much longer than the expected cycle to get everything to set, because ... 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 ...