1994 Mazda 323 mileage: 150,000. The car will crank over but it won't start. The ignition system is working, all fuses appear to be intact, and the fuel system appears to work, as it will pump fuel to the EFI unit. When the car quit, it was doing fine, then lost power drastically. After pulling off, the car would not restart. Any suggestions on what to check to isolate the problem?
Here are some things to have checked: 1. Check to see if the timing belt chain has failed, 2. Check for ignition spark at spark plugs, 3. Check for fuel pressure, 4. Scan P.C.M. (Computer) for fault or error codes. The information should pinpoint the malfunctioning components.