Fuel Injector Coil Test - ECT Temp Between 10-35 Deg C

Diagnostic Chart:

Description:

Test Description


Caution: In order to reduce the risk of fire and personal injury, wrap a shop towel around the fuel pressure connection. The towel will absorb any fuel leakage that occurs when installing the fuel pressure gauge. Place the towel in an approved container when the installation of the fuel pressure gauge is complete.

2. The engine coolant temperature affects the ability of the fuel injector tester to detect a faulty fuel injector. If the engine coolant temperature is NOT between 10°C and 35°C (50°F and 95°F), go to Fuel Injector Coil Test Procedure - Engine Coolant Temperature Less Than 10°C (50°F) or Greater Than 35°C (95°F). Fuel Injector Coil Test - ECT Temp Outside 10-35 Deg C

3. The voltage displayed by the DMM in the first second may be inaccurate due to the initial current surge, therefore record the lowest voltage displayed by the DMM after the first second of the test. The voltage displayed by the DMM should be within the specified range, Refer to the examples in the following table. The voltage displayed by the DMM may increase throughout the test because the fuel injector windings warm and the resistance of the fuel injector windings changes. An erratic voltage reading (large fluctuations in voltage that do not stabilize) may indicate an intermittent connection within the fuel injector. If so, check the test equipment connections and retest.