Volvo Workshop Manuals
940 L4-2.3L SOHC VIN 88 B230F (1992)
Sensors and Switches > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Throttle Position Switch > Component Information > Technical Service Bulletins > Throttle Switch/Mechanism - Adjustment > Page 2241
Throttle Stop Adjustment Screw
If the 'check engine' (or Lambda symbol) warning lamp lights during engine braking (particularly at high altitude), the bypass air flow may be
Remember to clear the 1-2-1 code in the diagnostic system memory after each test.
G). ACTION IN EVENT OF ENGINE SPEED FLUCTUATION DURING FUEL SHUTOFF FUNCTION, OR COASTING DOWNHILL:
- Center throttle plate (see item 1.2).
Install throttle switch without tightening screws.
Turn switch clockwise. Place 0.15 mm feeler gauge between throttle lever and adjusting screw. Turn switch slowly counterclockwise until "click" is
If the throttle switch is of VDO manufacture, apply medium grade locking fluid when tightening the throttle switch screws.
- Recheck operation:
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