Safari Van M V6-262 4.3L VIN W CPI (1992)
(Reference bulletin 51-63-02). It is 3.3-4.8 volts and 1.9-2.1 ohm's resistance when measured at temperatures between 50°F and 95°F
If the system passed the above tests, start the engine and observe the pressure gauge. The pressure should be 5-10 psi lower with the engine at idle speed.
While observing the pressure gauge, quickly open and close the throttle. The pressure should have approached the key on test pressure of 380-440 kPa
(55-64 psi). If it did not, replace the CMFI unit.
To test the injector poppet nozzles, remove the upper intake manifold and Install injector poppet nozzle testers J 34730-230 following the service manual
procedure.
Turn the ignition switch on. Energize the injector. This will verify if each poppet nozzle opened by checking for the presence of fuel in each tester. If one
or more of the nozzles did not open, a miss will result and the CMFI unit should be replaced.
If the symptom persists, replace the fuel pump only if the amp draw is less than 8 amps.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Labor Time
J5547 - Fuel Injector
Use published labor operation time.
J5590 - Fuel Pump
Use published labor operation time.
