Engine Controls - System & Component Testing 2.0L: Diagnosis Ford Escort ZX2

Test Equipment

Following test equipment should be used.

1. Spark Tester (D81P-6666-A Or D89P-6666-A)
2. Digital Volt-Ohmmeter (DVOM)
3. 12-Volt Test Light
4. Remote Starter Switch
5. Hand Held Scan Tool
6. EEC-V Breakout Box (014-00950)

Diagnostic Aids

Test procedures are intended to identify faulty components or wiring while fault is present. If complaint is an intermittent condition, refer to TESTS W/O CODES article or CIRCUIT TEST Z in appropriate article

1. For SOHC vehicles, see «TESTS W/CODES»(ref-131255) .
2. For DOHC vehicles, see «TESTS W/CODES»(ref-131257) .

1. Check For Diagnostic Trouble Codes (DTC) Perform QUICK TEST. See appropriate article: For SOHC vehicles, see «TESTS W/CODES»(ref-131255) . For DOHC vehicles, see «TESTS W/CODES»(ref-131257) . If DTCs are present, service codes as necessary. If codes are not present, go to next step.
2. Check Battery Turn ignition on. Check battery voltage. If battery voltage is less than 12 volts, service battery as necessary. If battery voltage is more than 12 volts, go to next step.
3. Check For Spark Using Spark Tester (D81P-6666-A Or D89P-6666-A), check for spark at each spark plug wire or coil while cranking. If spark is consistent at all spark plug wires, go to next step. If spark is not consistent, go to CIRCUIT TEST JD in appropriate article to test crankshaft position sensor: For SOHC vehicles, see «TESTS W/CODES»(ref-131255) . For DOHC vehicles, see «TESTS W/CODES»(ref-131257) .
4. Check Spark Plugs Remove and inspect spark plugs. Replace plugs as necessary. If spark plugs are okay, testing is complete. If fault is still present, go to «TESTS W/O CODES»(ref-131528) article. If vehicle has a no-start condition, go to CIRCUIT TEST A in appropriate article: For SOHC vehicles, see «TESTS W/CODES»(ref-131255) . For DOHC vehicles, see «TESTS W/CODES»(ref-131257) .

See also:
• SENSOR RANGE CHARTS
• FUEL PRESSURE SPECIFICATIONS