The injected fuel quantity, the sum of fuel quantity demand and fuel quantity calculated
by the low-idle governor is above an engine speed-dependent limit for a minimum time.
Judgment Criterion
The air mass per time unit is above a threshold.
FAIL SAFE FUNCTION
Torque control is operated.
EGR control is prohibited.
PROBABLE CAUSE
Failed air flow sensor
(Refer to Symptom Procedure - Air Flow Sensor System .)
