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Title: PFC Cranking voltage reading?
Post by: L18M on May 28, 2011, 06:29:26 PM

Another PFc question,

what should the voltage be when the car is being cranked?
it\'s 13.*Volts when not cranking and when cranking drops to 8.* volts.
Is this normal?

cheers

Title: PFC Cranking voltage reading?
Post by: Prof on May 28, 2011, 07:17:02 PM

Quote from: L18M;765343Another PFc question,

what should the voltage be when the car is being cranked?
it\'s 13.*Volts when not cranking and when cranking drops to 8.* volts.
Is this normal?

cheers

Very - cranking an drop battery voltage down to 7V !!

Once it fires, the alternator should lift the voltage back to around 13.5-14v, 12 ish is good when charged and engine not running.

Title: PFC Cranking voltage reading?
Post by: L18M on May 28, 2011, 10:12:45 PM

thanks prof :)
its about 13.* volt not running.

Mazda Rotary Club

General => General Technical => Anything Engine/Performance/Tuning related => Topic started by: L18M on May 28, 2011, 06:29:26 PM