Checking the Basics - Read Before Proceeding

1. Engine cranks, but does not start.

a. Spark is insufficient or does not occur at all
(on spark plug).
^ Check ignition coil.
^ Check crankshaft position sensor (with a built-in distributor).
^ Check [1][2]ignition power transistor.
^ Check spark plugs.
^ Check spark plug cable.

b. Spark is good.
^Check ignition timing.

2. Engine idles roughly or stalls.
^ Check spark plugs.
^ Check ignition timing.
^ Check ignition coil.
^ Check spark plug cable.

3. Poor acceleration
^ Check ignition timing.
^ Check spark plug cable.
^ Check ignition coil.