Unveiling the Reasons Behind Your Fuel System Monitor's Lack of Readiness

The fuel system monitor fails to get ready anyone have any input on this. I have did drive cycles and replaced thermostat and O2 sensor. There is no check ... 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 ... the OBD system has not yet completed ... 1996-1998 Mitsubishi vehicles - These vehicles may have a high degree of “not ready” for the catalyst monitor. ##Idle the vehicle for 2-3 minutes. This executes the O2S Heater, Misfire, Secondary AIR, Fuel Trim, and Purge system monitors. ##Drive the ... 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, ... It failed because of "fuel system not ready " code on their scanner. They gave me 30 days extension and said ride it more often since no check engine light. ... 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 ... Issue #1: -After doing the driving sequence for 3 times, everything was ready, but FUE (Fuel System) monitor was not ready. ... Issue #2: - ... The number of incomplete OBD readiness monitors that are allowed to pass the OBD test portion of a Smog Check inspection are provided below. Model Year, Fuel ... All emissions readiness monitors are set, except the O2 sensor monitor. Both catalyst and O2 heater monitors are set. They won't even test it for emissions ...