Air Regulator to Fuel Pump Circuit

1. Connect ohmmeter between terminal 21 of EFI harness connector and ground.
2. Meter should read 25-90 ohms.
3. If reading is not within specification, check wiring harness between air regulator and fuel pump. Also check harness between both components and control unit. If wiring is satisfactory, refer to "Component Test" to test air regulator and fuel pump.