Correcting Co Level On Air Flow Sensor

Spoiler Hole PlugsPorsche Air Flow Repair

3. Close hole providing access to mixture control screw with a new plug after finishing adjustments. Press in plug flush.

1. Remove air flow sensor.

2. Drill hole in plug with a 2 mm dia. drill bit (up to stop on steel insert).

3. Pull out plug with a left-turning drill (no. 2).

1. Install air flow sensor.

2. Adjust engine idle speed and CO level. Turn mixture control screw accordingly with a screwdriver.

Turning clockwise = richer mixture Turning anticlockwise = leaner mixture

If CO level is not the specified value, remove plug from hole providing access to the mixture control screw. This requires removal of the air flow sensor


Never reuse a drilled plug!

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