[ianc]

The safety switch is mounted on the rear of the throttle body which is the metal tubelike thing that the throttle linkage connects to. It will have an electrical connection to it. I believe the color of the plug is black. The only other one in that area is for the cold start valve, and I think that plug is blue. If you can push the sensor plate up and hear the fuel pump is running, then that is not the problem.

There are a lot of things that could be wrong for a no start condition. Basically the engine needs three things to start and run: fuel, spark and compression. Pull one of the plug wires off a plug, put on rubber gloves, push a spare plug into the connector and ground the electrode to some metal piece of the engine. Make sure the car is out of gear and have a friend crank it over. You should see a nice blue spark from the plug. If not, look at ignit. If your engine's not blown or you haven't grossly misadjusted the valves recently, then we can assume there's compression. The only other alternative is fuel.

The CIS needs the cold start valve to fire fuel into the plenum on cranking, or it can be extremely difficult if not impossible to start. Check this. There is also an auxiliary air regulator mounted on #5 or #6's intake manifold where it bolts to the head which is thermostatically controlled by means of a bimetal which allows more air during cold running, but the inoperation of this part would probably not cause a non start condition.

Other basic things: stupid, but, do you have gas in the car? Is the fuel filter clogged?

Look at the basic things first and if nothing pans out, you'll probably want to buy a fuel pressure gauge and starting looking at your cold, warm and system pressures. HTH,

ianc