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With RPO LMG-The fuel alcohol content is less than 87 percent.

Without RPO LMG-The fuel alcohol content is less than 15 percent.

The ambient air temperature is between 4-30☌ (39-86☏).

The difference between the IAT and the ECT is less than or equal to 6☌ (10.8☏).

The start-up intake air temperature (IAT) is between 4-30☌ (39-86☏).

The start-up engine coolant temperature (ECT) is between 4-30☌ (39-86☏).

The barometric pressure (BARO) is more than 75 kPa.

The ignition voltage between 11-18 volts.

To determine if the I/M readiness diagnostic tests can be run this ignition cycle, use a scan tool to observe the I/M monitor enabled parameters in the I/M Data List. Perform the Inspection/Maintenance (I/M) Complete System Set Procedure if any I/M System Status indicators are set to NO. When all I/M monitored diagnostic tests are completed, the I/M System Status indicators are set to YES. The purpose of the Inspection/Maintenance (I/M) complete system set procedure is to satisfy the enable criteria necessary to execute all of the I/M readiness diagnostics and complete the drive cycles for those particular diagnostics.

Diagnostic Procedure Instructions provide an overview of each diagnostic category.

Review Strategy Based Diagnosis for an overview of the diagnostic approach.Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.Inspection/Maintenance (I/M) Complete System Set Procedure I stumbled across these more detailed instructions while trying to resolve my EVAP not ready status. If this does not reset the monitor, you may have to reperform several times. Again, don't press the clutch or brakes or shift gears This will perform the same diagnostics as in step 5. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst.ĭecelerate. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. Hold a steady speed of 88km/hr (55mph) for five minutes. This will perform the same diagnostics as in step 3. Accelerate at 3/4 throttle until 88-96 km/hr (55-60mph). During this time the EGR, Purge and Fuel Trim diagnostics will be performed.Īccelerate. It is important to let the vehicle coast along gradually slowing down to 32km/hr (20 mph). During this time the O2 response, air Intrusive, EGR, Purge, Misfire, and Fuel Trim diagnostics will be performed.ĭecelerate. Hold a steady speed of 88km/hr (55mph) for 3 minutes. During this time the Misfire, Fuel Trim, and Purge Flow diagnostics will be performed. Turn off the air conditioner and all the other loads and apply half throttle until 88km/hr (55mph) is reached. This will test the O2 heater, Passive Air, Purge "No Flow", Misfire and if closed loop is achieved, Fuel Trim.Īccelerate. The more electrical load you can apply the better. The engine must be run for two and a half minutes with the air conditioner on and rear defroster on.

Do not leave the key on prior to the cold start or the heated oxygen sensor diagnostic may not run. In order to be classified as a cold start the engine coolant temperature must be below 50☌ (122☏) and within 6☌ (11☏) of the ambient air temperature at startup. To perform an OBDII Driving cycle do the following:Ĭold Start.

If you want to try to get it reset, the following may help This condition will not throw a code, but you may need to check the monitor ready before your next inspection. It is not uncommon for the readiness monitors to go "not ready" when the battery is disconnected. The drive cycle to make them go ready is pretty complex. Evap monitors are the most difficult to go "Ready".