Fuel injection system tuning (Mazda Capella GD)

8.5.1. Adjusting the throttle control cable

Press the accelerator pedal fully down or place a brick on the pedal to press it to the floor.

Check that the high pressure fuel pump lever is against the limiter, but is not under tension.

If necessary, adjust the length of the cable with both nuts.

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Check the adjustment and make further adjustments under these conditions.

8.5.2. Adjusting the device to facilitate starting a cold engine

This work is only necessary if air conditioning is installed. With the air conditioner running, the idle speed should be 725+25 rpm. If this isn't the case, loosen the lock nut on the idle speed booster and adjust the adjusting bolt accordingly.

8.5.3. Idle speed adjustment

Bring the engine to operating temperature before adjusting idle speed. The idle adjustment bolt is located on the rear of the pump, in the location shown in Figure 153.





To adjust the bolt, loosen the lock nut and adjust the bolt until the engine runs at 720 rpm. A deviation of plus 30 rpm to minus 20 rpm is acceptable.

After this, lock the bolt again.