Es

Engine Room R/B

EFI Relay d>

Engine Room R/B

Battery

Engine Room R/B and J/B

1 Mass Air Flow Meter

5 30

MREL

A121737E01

HINT:

Read freeze frame data using an intelligent tester. Freeze frame data record the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data, from the time the malfunction occurred.

READ DATA LIST (MASS AIR FLOW RATE)

(a) Connect an intelligent tester to the DLC3.

(b) Start the engine.

(d) Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / MAF.

(e) Read the values displayed on the tester. Result

Mass Air Flow Rate (g/sec)

Proceed To

0.0

A

271.0 or more

B

Between 1.0 and 270.0 (*1)

C

1: The value must be changed when the throttle valve is open or closed.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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