Passport 4WD V6-3.2L SOHC (6VD1) (1994)
Fuel Injector: Testing and Inspection
NOTE: The entire test should NOT be repeated more than once without running the Engine to prevent flooding. (This includes any retest on
faulty Injectors). The Fuel Pressure Test, should be completed prior to this test. See: Fuel Pressure/Testing and Inspection
STEP 1. If Engine is at operating temperature, allow a 10 minute "cool down" period then connect Fuel Pressure Gauge and Injector Tester.
1. Ignition "OFF".
2. Connect Fuel Pressure Gauge and Injector Tester.
3. Ignition "ON".
4. Bleed off Air Gauge. Repeat until all air is bled from Gauge.
STEP 2. Run Test.
1. Ignition "OFF" for 10 seconds.
2. Ignition "ON". Record gauge pressure. (Pressure must hold steady, if not see the Fuel Pressure Testing. See: Fuel Pressure/Testing and
Inspection
3. Turn Injector on, by depressing button on Injector tester, and note pressure at the instant the Gauge needle stops.
STEP 3. Repeat Test.
1. Repeat step 2 on all Injectors and record pressure drop on each. Retest Injectors that appear faulty (Any Injectors that have a 10 kPa (1.5 psi)
difference, either more or less, in pressure from the average). If no problem is found, review Diagnosis by Symptom. See: Computers and
Control Systems/Testing and Inspection