Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Random/multiple cylinder misfire detected

Toyota Corolla (E120): Random/multiple cylinder misfire detected

Dtc p0300 random/multiple cylinder misfire detected

Dtc p0301 cylinder 1 misfire detected

Dtc p0302 cylinder 2 misfire detected

Dtc p0303 cylinder 3 misfire detected

Dtc p0304 cylinder 4 misfire detected

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Inspection procedure
Hint: if dtc p0441 (purge flow), p0446 (vsv for ccv or vsv for pressure switching valve), p0451, p0452 or p0453  is output with dtc p0442 or p0456 , first troubleshoot dtc p0441, p0446, p0451, p0452 or p0453. If no malfunction is detected, troubleshoot dtc p0442 or p0456 next. ...

Pre–check
1. Pre–check Check that the cruise control actuator assy, acceleration wire, accelerator auto drive cable assy, and link assy are installed correctly and that the wire and link are securely connected. check that the operating movement of the acceleration pedal, cruise control actu ...

Symptom confirmation and diagnostic trouble code
Hint: the diagnostic system in corolla has various functions. The first function is the diagnostic trouble code (dtc) check, in which a malfunction in the signal circuits to the ecu is stored in code form in the ecu memory. Another function is the input signal check, which checks if ...