Component Inspection
- Engine "ON".
- Install Scantool and monitor the "MASS AIR FLOW" parameter on the Scantool data list.
- Monitor the "MASS AIR FLOW" parameter on the Scantool.
- Is MAF sensor voltage within the specified value?
YES
- Check for poor connection between PCM 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 MAF for contamination, deterioration, or damage. Substitute with a known-good MAF and check for proper operation. If the problem is corrected, replace MAF and then go to VERIFICATION OF VEHICLE REPAIR procedure.