Fuel System Monitor Woes Exploring the Culprits Behind Its Silence

Its possible they are not fully passing, yet are not fully failing that monitor test. Sometimes it is not even the sensor itself, but a circuit related issue, ... 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 ... Make sure the gas cap is tight and you have about 1/2 tank gas. In most cases, just this monitor not being ready should not cause an inspection ... Incomplete or not ready meaning the test is not completed. It means that the OBD2 system has not been able to run this routine or it has failed. OBD Auto ... ... 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 If too many readiness indicators are "incomplete," the vehicle will fail the inspection because it means that the vehicle has not been operated ... 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 ... BUT i went to complete a drive cycle after the codes were cleared and i checked after 100 miles and the evap and fuel system are not ready. this ... Some codes can prevent the continuous monitor of Fuel System (runs at startup) should be ready unless some code prevents it. No O2, Evap or fuel codes per GAP ... I paid them to reflash the system as that was the known remedy for the “fuel system monitor not ready” issue. It fixed the issue, but now o2 ...