On-Vehicle Inspection

2AR-FE ENGINE CONTROL: MASS AIR FLOW METER: ON-VEHICLE INSPECTION

NOTICE:
* Perform the mass air flow meter inspection according to the procedures below.
* Only replace the mass air flow meter when the mass air flow value in the Data List (with the engine stopped) is not within the normal operating range or there is foreign matter on the mass air flow meter platinum hot wire (heater).

1. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON (do not run the engine).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / MAF.

(e) Wait 30 seconds, and then read the values on the Techstream.

Standard:





If the result is not as specified, replace the mass air flow meter sub-assembly.

If the result is as specified, inspect the mass air flow meter sub-assembly Inspection.