3000GT (SOHC)
- Ignition timing is controlled by Powertrain Control Module (PCM) and is not adjustable. Manufacturer provides procedure for checking timing.
- Start engine and warm engine until engine temperature coolant is 176-203°F (80-95°C). Turn engine off. Insert a paper clip in noise filter connector. See Fig 1. Connect a tachometer to paper clip.
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
- Install a timing light. Start engine and allow it to idle. Using tachometer, read curb idle speed (RPM). Ensure curb idle speed is 600-700 RPM. Turn engine off. Curb idle speed is automatically controlled by Idle Air Control (IAC) system. If curb idle speed is not as specified, see DTC P0505 in appropriate TESTS W/CODES
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- Disconnect waterproof female connector from Brown ignition timing check connector. See Figure. Using a jumper wire, ground ignition timing check terminal to read basic ignition timing. Using timing light, read basic ignition timing value. See IGNITION TIMING SPECIFICATIONS table. If basic ignition timing is within specification, go to next step. If basic ignition timing is not within specification, see DTC P0335 in appropriate TESTS W/CODES
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- Remove jumper wire to read actual ignition timing. Using timing light, read actual ignition timing value. If actual ignition timing is not within specification, see DTC P0335 in appropriate TESTS W/CODES
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