Main Relay (Computer/Fuel System): Testing and Inspection

1994 Eagle Summit Wagon AWD L4-1795cc 1.8L SOHCSECTION Testing and Inspection

Multiport Fuel Injection Relay:




Multiport Fuel Injection Relay:




Multiport Fuel Injection Relay:




Multiport Fuel Injection Relay:




Multiport Fuel Injection Relay:





HARNESS INSPECTION


MULTIPORT FUEL INJECTION RELAY INSPECTION

Multiport Fuel Injection Relay:





1. Remove the multiport fuel injection relay.

Multiport Fuel Injection Relay:





2. Check the continuity between the multi port fuel injection relay terminals 5 - 7 and 6 - 8.

CAUTION: If jumper leads are not connected properly the relay will be damaged.

3. Use jumper leads to connect multi port fuel injection relay terminal 7 to the battery (+) terminal and terminal 5 to the battery (-) terminal.

Multiport Fuel Injection Relay:





4. Check the voltage at multiport fuel injection relay terminal 1 while connecting and disconnecting the jumper lead at the battery (-) terminal.

Multiport Fuel Injection Relay:





5. Use the jumper leads to connect multiport fuel injection relay terminal 8 to the battery (+) terminal and terminal 6 to the battery (-) terminal.

Multiport Fuel Injection Relay:





6. Check the continuity between multiport fuel injection relay terminals 2 - 4 and terminals 3 - 4 while connecting and disconnecting the jumper lead at the battery (-) terminal.
7. If there is a defect, replace the relay.

Multiport Fuel Injection Relay:




SCAN TOOL TESTING

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.