1999 Honda Civic alternator/charging system

1999 HONDA CIVIC
90,000 MILES • 4 CYL • FWD • MANUAL
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MATTSCHULTZ
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My friend has gone threw 3 batterys and 3 alternators in the past couple weeks. We ran all new positive and ground wires checked all the fuses,and relays, took out the SRS and wireing harness to see if there was any bad wires. With no luck we are out of questions. It is a modded car with alot of power over the stock B16 though... His fuel pump is bad could that be doing it?
Dec 2, 2008 at 12:35 AM
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DAVE H
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if the fuel pump relay is jammed and keeping the pump running constantly this could be flattening the battery ????
Dec 2, 2008 at 9:19 AM
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MATTSCHULTZ
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Yea would seem that way. I think that is the last thing we tried but we will shoot fo it again.


Would it still cause the battery to not get charged to?
Dec 2, 2008 at 10:44 AM
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DAVE H
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the battery should still get a charge while engine is running ... but as soon as you turn engine off .. something big draining the battery will not take long to sap it ??? start engine .. put a voltmeter across battery terminals ... you should get a reading of between 13 and 14 volts into battery from alternator .. if your not getting near 13 volts it's not getting an adequate charge from alty .. check wires etc. on alternator or put voltmeter positive lead to alternator B+ ...and negative lead to battery negative again you should get around 13 plus volts, if not, the alternator is not working
Dec 2, 2008 at 1:21 PM
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MATTSCHULTZ
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yea did that on the first night. and tested it again! we now have torn out the whole dash and are going threw every peice of wire there!
Dec 3, 2008 at 11:25 PM