Alternator Voltage
06-01-2006, 11:25 PM
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Alternator Voltage
Anyone know what the alternator is suposed to output while the car is at idle, & full load?
I'm just curious because I keep running my battery down after a 20-30 minute run. Please note that I am using AEM EMS with UEGO / Wideband O2, and that the EMS software is showing about 12.6v at 1000 RPM's. I'm thinking that the voltage should be just around 13-14 volts from the alternator under normal conditions.
Note: I used an alternator tester the other day (While the car was running), and it indicated that the alternator was ok, but the indication it looked a tad low IMO.
I'm just curious because I keep running my battery down after a 20-30 minute run. Please note that I am using AEM EMS with UEGO / Wideband O2, and that the EMS software is showing about 12.6v at 1000 RPM's. I'm thinking that the voltage should be just around 13-14 volts from the alternator under normal conditions.
Note: I used an alternator tester the other day (While the car was running), and it indicated that the alternator was ok, but the indication it looked a tad low IMO.
06-02-2006, 01:54 AM
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Just ran the car again and tested the battery voltage directly with a calibrated multimeter. So far it looks solid at 14.2 - 14.5 VDC.... Not sure why my EMS is loosing power while the engine is off.
Anyone have an idea what could be causing this?
Anyone have an idea what could be causing this?
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