fuel pump 90 civic dx

Asked by Nov 16, 2008 at 05:56 PM about the 1990 Honda Civic

Question type: Maintenance & Repair

What is the easiest way to test for a faulty pump and to change if necessaey?thanks

4 Answers

570

Do a fuel pressure test...

2,180

INSURE ENGINE IS COLD BEFORE DOING THIS TEST!!!! Get plenty of rags; disconnect the feed line to the fuel filter. Wrap the line end with rags then have some one tun the key to the "RUN" position. If the pump is working correctly, fuel should squirt out the line; (Thus the rags to control it!) If that checks out ok; YOU HAVE A WORKING PUMP! Fuel is getting to the filter. Now, reattach that line and remove the outlet line. Do the same test see if fuel exits the filter. If it does, FUEL IS MAKING IT TO THE ENGINE. Your problem is throttle body or injector related.

1 of 1 people found this helpful.
2,180

OOPS!..forgot a step. If the fuel DOES NOT EXIT the FILTER, replace the filter.

did you ever get the trouble worked out ?

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