Mazda MX-3 silhouetteMX-3

ENGINE TUNE-UP

F2-70prose procedure
Continued from F2-69

Air Cleaner Element

Inspection

Air Cleaner Element Inspection

  1. 1
    Check the air cleaner element for excessive dirt and for oil and damage.
    Cleaning the element with compressed air will reduce the element's ability to filter the air. Don't use compressed air to clean the element.
    Illustration of the air cleaner element (panel filter) shown in isolation, for inspection of dirt, oil, and damage.
  2. 2
    Replace the element if necessary.

ADJUSTMENT

Preparation

Adjustment Preparation

  1. 1
    Warm up the engine to normal operating temperature.
  2. 2
    Turn all electrical loads off: Headlight switch; Blower switch; Rear window defroster switch; P/S; A/C
  3. 3
    Connect the SST to the data link connector.
    Engine bay illustration of tune-up adjustment hookup. A TIMING LIGHT is clipped on, a TACHOMETER is connected to the DATA LINK CONNECTOR at terminal IG-. Labels point to the timing light, tachometer, IG- terminal and data link connector.
  4. 4
    Connect a timing light.
  5. 5
    Connect a tachometer to the data link connector terminal IG- as shown.

Ignition Timing

  1. 1
    Perform "Preparation". (Refer to above.)
  2. 2
    Verify that the coolant fan does not operate.
  3. 3
    Make sure the idle speed is within the specification. If not, adjust the idle speed (Refer to page F2-71).
  4. 4
    Set switch A to position 1.
    Ignition timing setup illustration. The System Selector (49 B019 9A0) is connected via leads to the TEN and GND terminals; switch A and TEST SW are labeled. Used to set switch A to position 1 and TEST SW to SELF TEST.
  5. 5
    Set TEST SW to SELF TEST
Idle speed (Neutral or P range)Neutral or P range
550–950 rpm {750 ± 200 rpm}rpm
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See also

page F2-71

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