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Fuel Injection System - BOSCH AFC: Testing: Injectors

  1. Pull connector off injector and place ohmmeter across terminals. Resistance should be 2-3 ohms. If not, replace injector.
  2. Unplug connector from series resistor on firewall. Connect one ohmmeter lead to center pin of connector and touch other lead to each side pin. Resistance for each must be 5.5-6.5 ohms. If not, replace series resistor.
NOTE: On California Vanagon models, series resistor is built in control unit and cannot be checked.