LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 1983 >> B2200 >> Repair and Diagnosis >> Engine Performance >> System >> Deceleration Control System - CALIF >> System Testing >> Throttle Positioner System >> Servo Diaphragm
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Servo Diaphragm

  1. Connect tachometer to engine. Start and warm engine to normal operating temperature. Stop engine. Remove air cleaner.
  2. Detach 3-way solenoid-to-servo diaphragm vacuum hose from servo diaphragm. Connect intake manifold vacuum hose directly to servo diaphragm. Start engine, run at 2000 RPM, then release throttle.
  3. On B2000 models, the engine speed should be within 900-1100 RPM.
  4. If engine speed is not within specifications, turn adjusting screw to obtain specified RPM. Replace servo diaphragm if correct RPM can not be obtained.
scientia non olet · About LEMON Manuals