Onvehicle Inspection

INSPECT AIR VALVE OPERATION (w/o Air Flow Meter)

(a) Remove the air cleaner hose.

(b) Check the engine rpm by closing the air port on the throttle body.

• The engine RPM should drop. After warm-up

• Check that engine RPM does not drop more than 100 rpm.

If operation is not as specified, replace the air valve, (w/ Air Flow Meter)

Check the engine rpm by fully screwing in the idle speed adjusting screw.

• When the idle speed adjusting screw is in, the engine rpm should and drop.

After warm-up

• When the idle speed adjusting screw is in, the engine rpm should drop below idle speed duel stop.

If operation is not as specified, replace the air valve.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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