Voltage

[bigm]

Hey Guys.

My voltage through my car is reading 15Volts when running, To my knowledge is 13-14 is normal.

Motor is Sr20. Could i have hooked up the cables wrong?

The battery isnt holding charge now, possible its now screwed from the extra voltage?

Cheers

[macca1590]

possibly, check aid levels in battery, may have boiled off and thats why its not holding charge, also pays to check voltage with multi meter, battery + to battery - and alternator + to battery -, also load it up and check, lights, heater fan ect.

is it 15v at idle or dose it rise with rpm?

voltage regulator might be rooted

[bigm]

15v at idle. hacnt checked at different RPMs

[H8CHIR6KU]

i have found that when nissan voltage regs go they always seem to overcharge. most others i find, dont charge. i would check that your getting a battery voltage signal into the alternator and if so then id say replace your alternator

[Sam-Q]

or just fix the voltage regulator. Check the voltage levels when you rev it