164k views
1 vote
Technician A states that a speed density system means that the PCM uses MAP, TP, and engine crankshaft speed to calculate the amount of air flowing into the engine. Technician B states that the amount of air flowing into the engine can be a direct reading from the MAF. Who is correct

User Amika
by
5.7k points

2 Answers

4 votes

Answer:

Both of them are correct

Step-by-step explanation:

PCM uses MAP, TP, and engine crankshaft speed to calculate the amount of air flowing into the engine, while the amount of air flowing into the engine can be a direct reading from the MAF

User Gordon Slysz
by
5.7k points
3 votes

Answer:

Technician A and B are correct

Step-by-step explanation:

Technician A is correct because the system app is used to calculate the amount of fuel required to go with the airflow.

Technician B is correct because Maf is incorporated with a sensor for detecting the amount of airflow.