When an engine is running, what should the voltage across the batt be? - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » When an engine is running, what should the voltage across the batt be?

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pow

Premium Member

Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
User status: Offline

20th Feb 08 at 22:46

14.4V isnt it?

My Ibiza doesnt get that far - is there something wrong with it?

carnuts

Member

Registered: 28th Aug 05
Location: Hertfordshire
User status: Offline

20th Feb 08 at 22:50

between 12.5 and 14.5 is normal i think if your worried switch everything in the car on and then check even then it shouldnt drop any lower than 12.5

pow

Premium Member

Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
User status: Offline

20th Feb 08 at 22:51

When I turn the wheel with the lights/AC on, I can manage sub 12

carnuts

Member

Registered: 28th Aug 05
Location: Hertfordshire
User status: Offline

20th Feb 08 at 22:53

what about when you rev it?

pow

Premium Member

Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
User status: Offline

20th Feb 08 at 23:32

No real change

John

Member

Registered: 30th Jun 03
User status: Offline

20th Feb 08 at 23:34

Turning the wheel uses loads, if it looks ok just idling it's fine.

luke85

Member

Registered: 26th Nov 07
Location: Chesterfield
User status: Offline

20th Feb 08 at 23:38

should be seeing 13.8V up to 14.4V depending on how much you have turned on, If it doesnt reach that by 1500rpm then Id say there is a problem somewhere

John

Member

Registered: 30th Jun 03
User status: Offline

20th Feb 08 at 23:42

If he has got the power steering near full lock it will drop right down, I don't know why you would measure voltage while turning the wheel unless you suspected a problem though

pow

Premium Member

Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
User status: Offline

21st Feb 08 at 08:19

I have some dimming light problems as well...

Would a dodgy batt/alternator have any effect on fuel economy?

deano87

Member

Registered: 21st Oct 06
Location: Bedfordshire Drives: Ford Fiesta
User status: Offline

21st Feb 08 at 08:34

quote:
Originally posted by pow
I have some dimming light problems as well...

Would a dodgy batt/alternator have any effect on fuel economy?

That is nothing. You want to try a 12v, with EPS, heated screen, mirrors and lights on. Getting out of a layby parking space is not fun.

pow

Premium Member

Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
User status: Offline

21st Feb 08 at 08:42

Its difficult cos your headgasket has gone deano

lil_g

Member

Registered: 29th Oct 06
User status: Offline

21st Feb 08 at 10:06

quote:
Originally posted by deano87

quote:
Originally posted by pow
I have some dimming light problems as well...

Would a dodgy batt/alternator have any effect on fuel economy?

That is nothing. You want to try a 12v, with EPS, heated screen, mirrors and lights on. Getting out of a layby parking space is not fun.

Pow don't say that