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"1990 Honda Accord Starting Problems"
MAROONED3
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Main Relay Test:
NOTE: If the car starts and continues to run, the main relay is okay.
- Remove the main relay.
- Attach the battery positive terminal to the No. 4 terminal and the battery negative terminal to the No. 8 terminal of the main relay. Then check for continuity between the No. 5 terminal and No. 7 terminal of the main relay.
- If there is continuity, go on to step 3.
- If there is no continuity, replace the relay and retest.
- Attach the battery positive terminal to the No. 5 terminal and the battery negative terminal to the No. 2 terminal of the main relay. Then check that there is continuity between the No. 1 terminal and No. 3 terminal of the main relay.
- If there is continuity, go on to step 4.
- If there is no continuity, replace the relay and retest.
- Attach the battery positive terminal to the No. 3 terminal and battery negative terminal to the No. 8 terminal of the main relay. Then check that there is continuity between the No. 5 terminal and No. 7 terminal of the main relay.
- If there is continuity, the relay is OK; If the fuel pump still does not work, go to Harness Test.
- If there is no continuity, replace the relay and retest.
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