There is a yellow plug that comes off the wires that goes to the distributor. It is a single pin plug, the other yellow ones will be 2 or more. You take a safety pin, paper clip, or something and stick it in there.
Turn the key to ON, the check engine light should come on, and also start blinking. If it does not blink, you have a problem with your TPS. The check engine light needs to blink so you know that it has disabled the spark advance