Its the brown wire from the distributor, goes to the fuses/relays on your firewall. unhook that and you will have your base timing.
inside the distributor
1-6-5-4-3-2
0 TDC / Top dead center.
1.8.4.3.6.5.7.2 standard Chevy timing/firing order. the #1 on the distributor will be pointing @ the #1 cyl when @ top dead center.( front drivers side.
YES.
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.
A 1993 Chevy does not have a carburetor, it is fuel injected.
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.
Ignition timing is electronically controlled.
Doesn't have a timing belt.
Which engine? If you're 1500 has a 350 V8, (most common) it doesn't use a timing belt, it uses a timing chain instead, and you need to take the front cover off the engine to get to the timing chain. If you're changing a belt it's called the Serpentine belt and there is no timing involved.
4L60E transmission.