POSSIBLE
CAUSE
Diagnostic procedure
STEP
VERIFY FREEZE FRAME DATA (MODE 12) AND
1
DIAGNOSTIC MONITORING TEST RESULTS HAVE BEEN
RECORDED
Have the FREEZE FRAME DATA (Mode 12) and
DIAGNOSTIC MONITORING TEST RESULTS
(misfire related) been recorded?
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
2
MAF sensor signal malfunction
TP sensor signal malfunction
VSS signal malfunction
Eccentric shaft position sensor malfunction
Spark plug malfunction
High-tension lead malfunction
Excess air suction in intake-air system
Fuel injector related wiring harness malfunction
Leakage engine coolant
Insufficient compression
Metering oil pump malfunction
Engine oil condition malfunction
Increased oil pressure
Oil passage malfunction
Engine malfunction
Fuel line pressure malfunction
Fuel pump unit malfunction
Pressure regulator (built-in fuel pump unit) malfunction
Fuel injector malfunction
PCM malfunction
INSPECTION
ACTION
YesGo to the next step.
No Record the FREEZE FRAME DATA
(Mode 12) and DIAGNOSTIC
MONITORING TEST RESULTS on
the repair order, then go to the
next step.
YesPerform repair or diagnosis