Deceleration Control System Description; Dashpot Inspection - Mazda 121 Workshop Manual

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DECELERATION CONTROL SYSTEM
DECELERATION CONTROL SYSTEM
DESCRIPTION
The dashpot is used to prevent the throttle valve trom suddenly closing
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DASHPOT
lnsgeclion
1. Open the throttle valve fully. Push the dashpol .od with a
finger and verity that it goes into the dashpot slowly
2. Release the rod and verify that it comes out quickly.
3. Replace the dashpot if not as specified
4. Warm up the engine and run it at idle
5. Connect a tachometel to the diagnosis connector lG-
terminal and increase engine speed.
DIAGNOSIS
CONNECTOB
6. Slowly decrease the engine speed and verify that the lever
touches the dashpot rod at the specified speed.
Specification: 2,500 + 100 rPm
7. lf not as specified, loosen the locknut and turn the adjust-
ing screw to adjust.
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