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Engine Control System Self-Diagnostics - 4-CYLINDER: Other Toyota 4Runner III

Testing & Diagnostics

DTCS P0301-P0304: CYLINDERS NO. 1-4 MISFIRE DETECTED

Note. When 2 or more trouble codes for a misfiring cylinder are recorded repeatedly, but DTC P0300 is not recorded, it indicates misfires were detected and stored into ECM memory at different times.