To properly adjust the idle speed and CO content, the following conditions must be met:
- The oil temperature must be at least 60°C.
- The ignition system must be properly adjusted.
- There should be no air leaks in the intake tract.
- The air filter must be clean. If necessary, it should be cleaned or replaced.
- The air heater in the intake manifold must be adjusted.
- Energy consumers (radio, lighting, etc.) must be turned off.
- Adjusting screw 3 should not touch stepped disk 4 (see fig.).
- For vehicles with automatic transmission, the gear selector lever must be in position "P".
Connect the tachometer and gas analyzer.
Start the engine. Check idle speed (it should be within 900-950 rpm (for cars with automatic transmission: 800-850 rpm)) and the CO content in the exhaust gases (it should be within 0.5-1.5%).
If the measured values do not correspond to the above, correct them.
Remove the protective seals from the adjusting screws. A special puller can be used for this. If you don't have one, punch or drill a hole of the appropriate diameter in the seal and screw a screw into it. Use pliers to remove the seal together with the screw.
Adjust the idle speed with screw 1 (see fig.C0112).
(Original posted on the website: «www.OPELBOOK.ru»)
Adjust the CO content in the exhaust gases with screw 2.
Seal the adjustment screws with new protective seals.
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