Unveiling the Enigma Why Your Fuel System Monitor Stays Unresponsive

Less fuel vaporization at low temps throws off the vapor pressure requirement. In my state TWO monitors can by "not ready" and the OBDII test ... 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 ... ... 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 I ran into issues because the vehicle had 4 parameters in the emissions monitors that were 'incomplete' or 'not ready': 1. Fuel system 2. Catalyst 3. ... 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 ... 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 ... It means your Onboard Diagnostic System (OBD II) has NOT completed all of its self-test monitors that keep an eye on the performance of your emissions control ... 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 ... If your oxygen sensor monitor isn't working, this video is for you! We'll show you how to fix the O2 sensor monitor not ready problem, ... ... the drive cycle to set the OBDII system to show ready. ... The monitors I could not reset were the Oxygen Sense, Cat Monitor, and EGR system ...