Used from a post by "The Oz" from www.g2ic.com


Engine rotates but will not start

- Fuel tank empty.
- Battery discharged.
- Battery terminal connections loose or corroded.
- Leaking fuel injectors, faulty fuel pump, faulty fuel pressure regulator.
- Fuel not reaching the fuel rail.
Ignition components damp or damaged.
- Worn, faulty or incorrectly gapped spark plugs.
- Broken, loose or disconnected wiring in the starting circuit.
- Loose distributor is changing ignition timing.
- Broken, loose or disconnected wires at the ignition coil or faulty coil.

It could also be your MFR (main fuel relay) if it is hard to start when its hot outside, somtimes the soldered connections on these melt and come loose in exremly hot tempuratures and it needs to be re-soldered...not hard only takes a few minutes....