![]() ![]() Remove the cover from the Duty Check Data Link Connector (DC-DLC), located beside the right-hand headlight assembly (1994–96 models) or next to the battery (1997–98 models), and, using a jumper wire, connect DC-DLC connector cavities 4 and 5.If it is not, adjust the idle speed prior to adjusting ignition timing. Check the idle speed to ensure that it is within specifications.Shut the engine OFF, then remove the inductive timing light from the vehicle.WARNINGĭriving the vehicle with the monitor connector terminals grounded will result in catalytic converter damage be sure to remove the jumper wire prior to driving the vehicle. ![]() If the engine speed does not advance, inspect the TP sensor, the test switch terminal circuit, the engine start signal circuit and PCM. The ignition timing should advance as the engine speed increases. Observe the ignition timing marks with the timing light while increasing engine speed.NOTE: With this jumper wire removed, the ignition timing may fluctuate, which is normal. Detach the jumper wire from the monitor connector.Tighten the distributor flange bolts securely. Turn the distributor counterclockwise to advance, and clockwise to retard the ignition timing. To adjust the ignition timing, loosen the distributor flange bolts and rotate it until the proper ignition timing is within specifications.If the ignition timing, with terminal D properly grounded, is not 7–9 degrees BTDC at 800 rpm engine speed, adjust the timing.NOTE: If the timing fluctuates or changes, terminal D is not properly grounded to terminal D. Use the timing light to read the ignition timing by pointing the light at the timing marks (located on the crankshaft pulley and timing belt cover tab) and pulling the light’s trigger.Start the engine and allow it to idle.Grounding terminal C to terminal D will fix the ignition timing (prevent the timing from moving). Remove the cover from the monitor connector, located beside the right-hand head light assembly, and, using a jumper wire, connect terminals C and D.Check the idle speed to ensure that it is 800 rpm.This will ensure that the engine is properly warmed up. Turn off the engine, turn the ignition switch ON for 5 seconds, then start the engine again and run it at 2000 rpm for 5 minutes.After adjusting the ignition timing and tightening the distributor flange bolts, recheck the ignition timing to ensure that it did not change while tightening the distributor flange bolts.5: To adjust the ignition timing, rotate the distributor housing counterclockwise to advance timing and clockwise to retard timing Tighten the distributor flange bolt(s) securely.įig. To adjust the ignition timing, loosen the distributor flange bolt(s) and rotate it until the proper ignition timing is within specifications.If the ignition timing, is not 8 degrees BTDC at 750–850 rpm engine speed, adjust the timing.Do not wear loose clothing when working around a running engine, otherwise personal injury or death may result. When using the timing light, be sure to keep yourself and all tools away from moving and hot engine components. The ignition timing marks are located on a tab attached to the engine The timing light input lead should always be attached to the No. Install the inductive timing light according to the manufacturer’s instructions.Check the idle speed to ensure that it is 750–850 rpm.Apply the parking brake and place the gearshift in Neutral (manual transmissions) or Park (automatic transmissions).If equipped, ensure that the air conditioning is OFF. Be sure that all of the electrical loads, except for the ignition switch, are OFF.Start the engine and allow it to warm up to normal operating temperature.Ignition Timing (deg) Automatic Transmission Ignition Timing (deg) Manual Transmission ![]()
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