Fuel System Monitor Conundrum Resolving the Mystery of Its Unreadiness

It failed fuel system readiness because the JB4 is manipulating the fuel rail pressure, so it isn't passing readiness. Take the JB4 off, clear codes, drive it ... Out of curiosity which monitor has not completed? I believe you can tell when a readiness monitors has not completed by watching the CEL and ... 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. Issue #1: -After doing the driving sequence for 3 times, everything was ready, but FUE (Fuel System) monitor was not ready. ... Issue #2: - ... ... 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 ... 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 ... For instance, the catalyst monitor will rely on the air fuel ratio sensor and oxygen sensor for it's test routine. If you check the air fuel ratio sensor test ... 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 ... 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 ... 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 ...