Voltage
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Voltage
Hay everybody,
I'm new here but not at the least new to the automotive area.
Heres whats going on. I have a volt tachometer and started to notice some fluctuation in the reading. The tachometer will read 14 volts for most of the time I drive. Once in a while it will read 12.4v or 12.5v.
I have researched and read where 14 volts are good. But is that not the alternator charging? if so the alternator should only charged for like 30 seconds or maybe even a minute, right?
Also, I know there are different modes for the ECM to operate at if that is the case...or am I being to precise about the readings
New battery and alternator installed.
PatrickR02
I'm new here but not at the least new to the automotive area.
Heres whats going on. I have a volt tachometer and started to notice some fluctuation in the reading. The tachometer will read 14 volts for most of the time I drive. Once in a while it will read 12.4v or 12.5v.
I have researched and read where 14 volts are good. But is that not the alternator charging? if so the alternator should only charged for like 30 seconds or maybe even a minute, right?
Also, I know there are different modes for the ECM to operate at if that is the case...or am I being to precise about the readings
New battery and alternator installed.
PatrickR02
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
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Re: Voltage
What you see is normal for Hondas. Read up on Hondas ELD system for more info.
Click this PDF LINK
HTH
Click this PDF LINK
HTH
Joined: Aug 2003
Posts: 21,620
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From: Las Vegas, NV
Rep Power: 512 Re: Voltage
When I had a voltmeter in my car, it fluctuated anywhere from 11.9 to 14.2VDC during normal operations
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