08 Z1 voltage?

[bzer]

what should my dash volt gauge be reading? says 32. feel it should be 12-14, right? have a one year old Optima battery. should I be checking my alternator? any suggestions?

[chpthril]

Is this with the engine running or just key on?

Static battery is usually between 12.5 and 13.0. Engine running would be 13.5 -14.5.

[ericinmich]

If it is showing 32, you better get a volt meter and check things out. I'm sure stuff will start failing at that voltage...

And yes, a failed alternator (specifically the regulator) could make it go high, but I don't think that high... maybe 18 volts.

[bzer]

yes that was with boat running.
thanks for the replies, i'll check with volt meter

[ChrisSnow]

The needle on my gauge has slipped. Basically if that's happened send it back for repair. I wish I could but the warranty is USA only....

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[chpthril]

My first thought is the LCD is failing and the "1" and "." are out and its actually 13.2V. Yes, get a meter and check battery voltage engine off and then with engine on. At 32V, i dont see any 12V automotive engine control module staying powered up and any other processor controlled device would shut down or let the smoke out.

[ericinmich]

My first thought is the LCD is failing and the "1" and "." are out and its actually 13.2V. Yes, get a meter and check battery voltage engine off and then with engine on. At 32V, i dont see any 12V automotive engine control module staying powered up and any other processor controlled device would shut down or let the smoke out.

Yup, ECMs I were responsible for were typically spec'ed for about 25v max steady state and transients (spec'd both for peak and for how long) in the 25 to 40v range. The double jump start that many old wreckers use to do was a problem to meet. You hoped that they didn't leave the double battery voltage on the vehicle very long...

[bzer]

My first thought is the LCD is failing and the "1" and "." are out and its actually 13.2V. Yes, get a meter and check battery voltage engine off and then with engine on. At 32V, i dont see any 12V automotive engine control module staying powered up and any other processor controlled device would shut down or let the smoke out.

guess that could be. it is an LCD gauge.

checked voltage at battery - 12.08
checked voltage w/ boat running - 13.8

gauge still reads 32, even when motor is off.....
riddle me that.

[chpthril]

Other than the battery(s) needing replaced, sounds like the alternator is not overcharging. No clue on the gauge reading, try contacting Faria the gauge manufacturer.