My book says to check the emission label in the engine compartment. I have a 92 V6 and the label says 10 degrees BTDC at 800 RPM.
Hoo I set the correct timing on a 1993 mazda protege
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.
Ignition timing is electronically controlled.
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Its the brown wire from the distributor, goes to the fuses/relays on your firewall. unhook that and you will have your base timing.
tdc 12 degrees
1-6-5-4-3-2
Diagram of ignition timimg marks
By diagram, if you are refering to the Emissions Control label located on the under side of the hood, it is only good for telling you what your timing (x degrees before top dead center (BTDC)) should be, given the engine you have. Haynes sells a service manual (about $17.00) that does a pretty good job of explaining how to go about setting the ignition timing on your engine, including descriptions of where the timing marks are for your engine and how to perform the timing adjustments.
1993 is OBD 1
A 1993 Toyota 4Runner uses R12 refrigerant. The 1993 Toyota 4Runner requires 30 ounces of R12 for all engine types.
The ignition timing on your vehicle is not adjustable. It is set according to driving conditions by the Powertrain Control Module, or PCM. There should be a sticker under the hood with this information.