DC - Mass Air Flow (MAF) Sensor

Enter this Pinpoint Test only when service code 26, 56 or 66 is received during Quick Test or you have been directed here by Quick Step step 9.0 (Diagnosis By Symptom).


This Pinpoint Test is only intended to diagnose the following:

1. MAF sensor.
2. Harness circuits: VPWR, PWR GND, MAF.
3. ECA computer processor.

To prevent replacement of good components, be aware that these non-EEC areas may be faulty:

1. Air cleaner element.
2. Inlet air duct.
3. Throttle body.

PINPOINT TEST DC SCHEMATIC

Pinpoint Test DC Schematic:

MAF SENSOR DATA GRAPH AND CHART

MAF Sensor Data Graph And Chart:

TEST STEPS DC1 - DC2

Test Steps DC1 - DC2:

TEST STEP DC10

Test Step DC10:

TEST STEPS DC11 - DC13

Test Steps DC11 - DC13:

TEST STEPS DC14, DC15, DC20

Test Steps DC14, DC15, DC20:

TEST STEP DC21

Test Step DC21: