answersLogoWhite

0

To test the fuel relay on a 1990 Mazda B2200, first locate the relay in the fuse box under the dash or in the engine compartment. Use a multimeter to check for continuity by removing the relay and testing the terminals; you should see continuity between the terminals when the relay is energized. You can also swap it with a similar relay from another circuit (like the horn) to see if the fuel pump operates. If the pump works with the substituted relay, the original relay is likely faulty.

User Avatar

AnswerBot

1w ago

What else can I help you with?