Corrado V6-2792cc 2.8L DOHC (1992)
Fuel Injector: Testing and Inspection
Checking Voltage Supply and Resistance
Checking injector voltage supply and resistance
- remove upper section of intake manifold (see Fuel Injectors, Removing/Installing)
- disconnect harness connectors from all fuel injectors
- switch Fluke 83 multimeter to resistance range
- connect multimeter to terminals of fuel injector connector 2 using jumper wires from VW 1594 adaptor kit
-
must be 15 to 21.5 Ohms
If 0 Ohms (continuity)
- check for short circuit in wiring using wiring diagram, repair or replace as necessary
If wiring OK
- replace fuel injector(s)
- disconnect harness connector from ignition coil power output stage
- check voltage supply to each injector
- connect US 1115 LED tester between terminals of harness connector 1 using jumper wires from VW 1594 adaptor kit
- operate starter
-
LED tester must flicker
If NO
- re-connect the harness connector(s) to fuel injector(s)
- check for open circuit in wiring between fuel injectors (N 30, N 31, N 32, N 33, N 83, N 84) and engine control module using wiring diagram, repair
or replace as necessary