WOULD THE ALTERNATOR CAUSE THIS?

1996 Honda Civic

Tiny

96civicguy

January, 13, 2009 AT 6:48 PM

Electrical problem
1996 Honda Civic 4 cyl Two Wheel Drive Automatic 100k+ miles

I have a 96 civic and the fuse for the alternator/speed sensor keeps blowing out when I start the car. It started off every once in a while, but now, it's happening every time I start it. When I brought it in for a NYS inspection, the speed sensor and both O2 sensors failed. I understand the speed sensor part due to the fuse being just blown out when they started it, but the O2 part was a surprise because I had just replaced both less than a month earlier. So my 2 questions are: 1. What would be causing that fuse to blow? And 2. Would that blown fuse(or the cause of it) be causing other sensors or the computer to be acting up?

1 Answer

Tiny

KHLow2008

January, 16, 2009 AT 10:14 AM

Hi 96civicguy,

To confirm if the alternator is causing the fuse to blow, disconnect the alternator 4 pin wire connectors and start engine. If fuse does not blow, reconnect wireharness and test again.

If you had not used OEM O2 sensors, there is a possibility they would fail.

However you should rectify the fuse problem first as it might be related to something that can cause the O2 sensors to fail.

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