Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

On-Vehicle Inspection





2ZR-FXE ENGINE CONTROL: MASS AIR FLOW METER: ON-VEHICLE INSPECTION

NOTICE:
* Perform the mass air flow meter inspection in accordance with the following procedure.
* Replace the mass air flow meter only when foreign matter adheres to the sensor and the MAF value in the Data List (with the engine stopped) is not within the normal operating range.

1. INSPECT MASS AIR FLOW METER

(a) Read the values using the Techstream (MAF).

NOTICE:
* Perform the inspection with the vehicle indoors and on a level surface.
* Perform the inspection of the mass air flow meter while it is installed into the air cleaner case (installed on the vehicle).
* During the test, do not use an exhaust air duct on the exhaust pipe.

(1) Connect the Techstream to the DLC3.

(2) Turn the power switch on (IG) (do not run the engine).

(3) Turn the Techstream on.

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

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

Standard Condition:





* If the result is not as specified, replace the mass air flow meter.

* If the result is within the specified range, remove and inspect the mass air flow meter Inspection.