Adjusting the carbon monoxide (CO) content in the exhaust gases of GAZ-3110

Adjustment is carried out on a warm engine (coolant temperature 80-90 °C) with a working ignition system and nominal gaps between the electrodes of the spark plugs.

The content of CO and CH in the exhaust gases must be within the following limits:

  • - 0.7-0.9% CO and 1200 ppm -1 CH at crankshaft speed (800+50) min -1
  • - no more than 0.5% CO and 600 million -1 CH at crankshaft speed (3150+50) m -1.

CO adjustment GAZ-3110

If the CO content is above the specified limits, adjust the CO content with screw 1 on the mass air flow sensor.

When turning the screw clockwise, the CO content increases, and counterclockwise it decreases.

In this case, the content of CH will also be adjusted.

If it is not possible to adjust the CO and CH content within the specified limits, you need to check the serviceability of the elements of the integrated microprocessor engine control system.