My ford focus would not start

Hi Greg, I'm AL the owner of Big As Auto Repair in St Charles Mo

Greg, I read your complete message, but nowhere did I see that you replaced the Cam Sensor. The EGR will cause it to stall at stops but usually will not prevent it from restarting. I would try replacing the Cam Sensor before anything else. If you should need further assistance go to my website by clicking here: Auto Repair

You get a code? Could be cam position sensor, perhaps.

Check TPS sensor[RPM]and IAC sensor.

could be crankshaft sensor.

crank sensor located off the fly wheel in transmisson

A flashing light is BAD. Its damaging the cat converter. I would check or replace the spark plug wires ( if all OK, then) replace the coil pack. I would not replace anything unless they test bad. but these car are known for bad coil packs.

You will want to find out if you are not getting spark or not getting fuel.
If no fuel, then bad fuel pump, plugged fuel filter, or bad fuel pressure regulator, or bad fuel pump relay.

If no spark, then bad crank sensor, or ignition module, or coil packs.

Have you checked for fuel pressure ? With only 1 coil pak out, the car should start. So, start from the beginning, ... Check for spark on several plug wires. If spark, then check for fuel, is the fuel pump working? Check the breaker in the trunk, drivers side behind the panel. If still no fuel, then could be a wire short or fuse,or just the pump in the tank needs to be replaced. If you do have spark and fuel, then check the MAF sensor on the air intake. This will shut the motor down more so then the MAP. Only Ford has this part and it cost's, and once you open the box they will not take it back. Have someone, or even Ford check the MAF sensor, or check at a scrap yard for hopefully a good used one. There's more to check, including the crank sensor, but start with this. Good luck.

this maybe caused by no fuel or faulty fuel pump, ignition coil, wire and plug crank position sensor. first check for spark by removing on spark plug wire and put a spark plug in the spark plug wire boot, donot touch the plug only the boot have someone crank the car over. if you see spark, that part of the ignition is good. if not, check the coil resistance if should 40 to 80 ohm with a volt meter pf not replace. if ok, but no spark check the igniton control madule make sure the coil and module are receiving current. if not check the fuse that feels them. if it is ok, check distributor cap and rotor. if rotor and cap are fine, check for fuel at either the fuel filter, the fuel return line or removing some spark plug and see if they are wet. if there is no fuel check the fuel pump and the fuse and relay that control the pump. if there is fuel with high pressure but there is no spark, check the crank sensor for signal with a volt meter while cranking the vehicle

change the module