Ignition Timing

NOTE: Ignition timing is not adjustable. For inspecting ignition timing, warm engine to normal operating temperature. Turn off all accessories. Place transmission in Neutral (M/T) or Park (A/T). Wait for cooling fan to stop. Ensure idle speed is correct. See IDLE SPEED under IDLE SPEED & MIXTURE.

Connect New Generation Star (NGS) scan tool to Data Link Connector (DLC) 2 located under left side of instrument panel, right of steering column. See Fig 2 . Connect a jumper wire between terminals TEN and GND at DLC 1 in engine compartment. See Fig 3 .
Ensure idle speed is correct. See IDLE SPEED & MIXTURE. Start engine and allow it to idle. Check timing. See IGNITION TIMING SPECIFICATIONS table. See Fig 4 . Connect Inductive Timing Light (49-T018-002) lead to ignition timing checking harness (Black/White wire) located next to engine compartment relay box. See Fig 1 .

Fig 1: Identifying Ignition Timing Checking Harness
Courtesy of MAZDA MOTORS CORP.

NOTE: Standard inductive timing light may not work on ignition timing checking harness. Recommend using manufacturers Inductive Timing Light (49-T018-002) or equivalent
If ignition timing is not within specification, check for diagnostic trouble codes. See appropriate TESTS W/CODES - 2.3L articles. Repair as necessary. If no codes are present, check camshaft position sensor and crankshaft position sensor. See appropriate SYSTEM/COMPONENT TESTS - 2.3L article. Replace as necessary.

IGNITION TIMING SPECIFICATIONS

Application

M/T

⁽¹⁾ A/T

Millenia 2.3L ⁽²⁾

N/A

6-8 @ 650

⁽¹⁾	Place automatic transmission in Park.

⁽²⁾	Connect a jumper wire between terminals TEN and GND of data link connector. See Fig 3 .

Fig 2: Locating Data Link Connector 2 (Typical)

Courtesy of MAZDA MOTORS CORP.

Fig 3: Identifying Data Link Connector 1 Terminals

Courtesy of MAZDA MOTORS CORP.

Fig 4: Locating Ignition Timing Marks (Typical)

Courtesy of MAZDA MOTORS CORP.