EZL CEC System: Testing
COOLANT SENSOR RESISTANCE SPECIFICATIONS
| Coolant Temperature | Resistance |
|---|---|
| 32°F (0°C) | 5.8 Ohms |
| 50°F (10°C) | 3.8 Ohms |
| 68°F (20°C) | 2.5 Ohms |
| 86°F (30°C) | 1.7 Ohms |
| 104°F (40°C) | 1.1 Ohms |
| 176°F (80°C) | .33 Ohms |
- Ignition coolant temperature sensor is located in the thermostat housing. See Fig 1 . Using ohmmeter, check that contact to ground is closed with engine cold.
- Operate engine until coolant temperature is at least 95-106°F (35-41°C). Contact should open at this temperature. Replace unit if contact did not operate.TIMING ADVANCE SPECIFICATIONS
RPM Degrees BTDC 900 6-14 2000 12-20 2400 26-34 - Install tachometer and timing light. Disconnect ignition ECU connector. Disconnect vacuum advance hose. Raise engine to 3000 RPM. Note timing advance reading. Timing advance should be 12-16 degrees.
- Connect ignition ECU connector. Ground ignition coolant temperature sensor with jumper wire. Raise engine to 3000 RPM. Note timing advance reading. Timing advance should be 6-9 degrees. Replace ignition ECU if timing advance reading is not within specification.