If the EVAP Service bay test is NOT available, it may take up to 6 drive cycles, with up to 17 hours between drive cycles, for the EVAP I/M System Status indicator to transition to YES. If the evaporative emission (EVAP) I/M System Status indicator displays NO, perform the EVAP Service bay test if available. Once the engine is started, do NOT turn the engine OFF for the remaining portion of the set procedure.Įnsure that the vehicle meets the conditions for a cold start listed above. After verifying the enable criteria, turn OFF the ignition for approximately 5 minutes to allow the sensors to cool before continuing with the test. Important: Whenever the ignition is turned ON, ignition positive voltage is supplied to the heated oxygen sensor (HO2S) heaters. Inspection/Maintenance (I/M) System Set Procedure All I/M System Status indicators should report YES. Review the Inspection/Maintenance (I/M) System Status indicators with a scan tool. With RPO L59?The fuel alcohol content is less than 87 percent. Without RPO L59?The fuel alcohol content is less than 15 percent. The ambient air temperature is between 4?30?C (39?86?F). The difference between the IAT and the ECT is less than or equal to 6?C (10.8?F) The start-up intake air temperature (IAT) is between 4?30?C (39?86?F). The start-up engine coolant temperature (ECT) is between 4?30?C (39?86?F). The barometric pressure (BARO) is more than 75 kPa. The ignition voltage between 11?18 volts. 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. Important: Always perform the Inspection/Maintenance System Check prior to using this diagnostic procedure. Inspection/Maintenance Complete System Set Procedure
Evap system monitor reset manual#
GM Service InformationHome Publications Number Search New Bulletins Bulletin Search Feedback TIS2Web SI HelpĢ007 Chevrolet Silverado Classic - 2WD | Sierra Classic, Silverado Classic VIN C/K Service Manual | Engine | Engine Controls and Fuel - 4.8L, 5.3L, and 6.0L | Document ID: 1614137 I always just use the forced EVAP test but here you go
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