3.
Monitor the "MASS AIR FLOW(V)" parameter on the Scantool.
Specification :
Approx. 0.6 ~ 1.0V at idle & No load
Approx. 1.0 ~ 1.3V at idle & A/C "ON"
Engine "ON".
Connect Scantool and monitor the "MASS AIR FLOW(V)" parameter on the Scantool data list.
Monitor the "MASS AIR FLOW(V)" parameter on the Scantool.
Specification :
Approx. 0.6 ~ 1.0V at idle & No load
Approx. 1.0 ~ 1.3V at idle & A/C "ON"
Is MAF sensor voltage within the specification?
YES
▶ Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
NO
▶ Check MAFS for contamination, deterioration, or damage. Substitute with a known-good MAFS and check for proper operation. If the problem is corrected, replace MAFS and then go to "Verification of Vehicle Repair" procedure.
