To adjust the ignition timing on a 1993 GMC Sonoma, first, ensure the engine is at operating temperature and then disconnect the timing connector (usually a single wire) near the distributor to set the timing to base. Use a timing light to check the current timing against the specification, which is typically around 0° to 6° BTDC (before top dead center) for this model. If adjustment is needed, loosen the distributor hold-down bolt and rotate the distributor slightly while monitoring the timing light until the desired timing is achieved. After adjustment, reconnect the timing connector and recheck the timing to confirm it's set correctly.
The 1993 Subaru Legacy 2.2 liter engine ignition timing is the sequence that allows the engine to run smoothly. The ignition timing is synchronized with the crankshaft position sensor.
Timing is set by the PCM and is not adjustable.
Ignition timing is electronically controlled.
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Hoo I set the correct timing on a 1993 mazda protege
Its the brown wire from the distributor, goes to the fuses/relays on your firewall. unhook that and you will have your base timing.
you rotate the distrubuter with the use of a timing light. I suggest that you get the Clymer manual before you attempt this, as the timing being off can ruin your engine.
To adjust the timing on a 1993 GMC Sierra 1500 with a 4.3L engine, first, ensure the engine is at operating temperature and then disconnect the timing connector (usually a single wire) to enable the base timing mode. Use a timing light to check the timing mark on the harmonic balancer in relation to the timing tab. Adjust the distributor by loosening the hold-down bolt and rotating it until the timing mark aligns with the specified degree (typically around 0° BTDC for this engine). Finally, reconnect the timing connector and recheck the timing to ensure it remains correct.
The timing is computer controlled, there is no adjustments. I know this is a little late, but timing could be off because the timing belt is not properly aligned. If the timing belt is installed incorrectly the timing will never be right.
Diagram of ignition timimg marks
1-6-5-4-3-2
How do you adjust timing chain on a 1990 sentra?