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When multiple DTCs for misfiring cylinders are set, but DTC P0300 is not set, it indicates that misfires have MONITOR DESCRIPTION The ECM illuminates the MIL and sets a DTC when either one of the following conditions, which could cause Within the first 1000 crankshaft revolutions of the engine starting, an excessive misfiring rate An excessive misfiring rate (approximately 20 to 50 misfires per 1,000 crankshaft revolutions) occurs a The ECM flashes the MIL and sets a DTC when either one of the following conditions, which could cause the At a high engine RPM, a catalyst damage misfire, which monitored every 200 crankshaft revolutions, At a normal engine RPM, a catalyst damage misfire, which monitored every 200 crankshaft revolutions, HINT: If a catalyst damage misfire occurs, the ECM informs the driver by flashing the MIL. MONITOR STRATEGY MONITOR STRATEGY P0301 Misfiring of specific cylinder occurs and one of following High temperature misfire occurs in Three-Way Catalytic Emission deterioration misfire occurs (MIL illuminates) Temperature (ECT) Compression pressure Valve clearance Valve timing PCV valve and hose PCV hose connections Air induction system ECM Related DTCs P0300: Multiple cylinder misfire
2008 Toyota Tundra 2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra
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