TFI Module Resistance Test
- Remove TFI module from distributor or disconnect cowl. Measure resistance of TFI module circuits. See TFI MODULE RESISTANCE . See Figure-Figure.
- If resistance is as specified, suspect faulty PIP sensor/stator. If resistance is NOT as specified, replace TFI-IV module.
TFI MODULE RESISTANCE
| Between Terminals | Ohms |
|---|---|
| GND & PIP IN | Greater Than 500 |
| PIP PWR & PIP IN | Less Than 2000 |
| PIP PWR & TFI PWR | Less Than 200 |
| GND & IGN GND | Less Than 2 |
| PIP IN & PIP | Less Than 200 |