Re: 2002 Ford Escort PO304 Code Help Needed
The Chilton's manual tells me the center pin (ignition start/run) going to the coil pack should have 10 volts with the ignition off. I think this is the tach signal wire. I checked it and it was only .1 volt going to it. Any ideas of what to check or what the problem may be other than possibly the wire? If it's in the wiring I'll have to have someone else take a look at it since I'm not very good with electrical gremlins.
Other things I've already checked are compression on #4 (175 PSI) replacing the spark plugs, alternating #3 & #4 plug wires resetting the ECU and drove the car. Code PO304 came back ruling out the plug wires, tested the coil, and tested the cam position sensor, both tested good. I haven't put the spark tester on it, but I don't think #4 is firing. When I took the plug for #4 out to check the compression it was gas soaked so the injector is firing.