Technician A says when the ECT sensor detects low engine temperature, the PCM decreases the injection pulse width. Technician B says when the TP sensor detects a sudden increase in throttle angle, the PCM increases the injectors' pulse width. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Question

Quizplus · Accepted Answer

When the ECT sensor detects low engine temperature, the PCM increases the injection pulse width to enrich the mixture for cold start. When the TP sensor detects a sudden increase in throttle angle, the PCM increases the injectors' pulse width to provide more fuel for acceleration.

Technician a Says When the ECT Sensor Detects Low Engine