Vauxhall Corsa 1.4 05 model - Engine revving after battery change

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Tue 14 Jan 2014 13:24
Vauxhall Corsa 1.4 05 model - Engine revving after battery change - Robin the Technician

Hi All,

At the w/end I changed the battery on my Daughters 1.4 Corsa. Started it up and it ran fine. Today, she started it up and it was revving like mad. I checked everything and all was ok. I decided to revert back to the old battery to see if it made any difference - it didn't. However, after the car had warmed up it decided to behave itself and idle. My Daughter had looked up the problem and one of the suggestions was a stuck idle control valve. I duly sprayed some WD40 around an area that looked like a valve to see if it would help. The car now starts & idles fine - but when you drive it it is very underpowered and there is a light on the dash of a car with a spanner through it. I assume the poor performance and the illuminated light are connected. Would disconnecting the battery and re-connecting it clear the problem?

Any advice and guidance would be greatly appreciated.

Thanks

Robin the Technician - I fix, therefore I am

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Tue 14 Jan 2014 14:01
Vauxhall Corsa 1.4 05 model - Engine revving after battery change - Robin the Technician

Update: On one of the Vauxhall forums someone said to hold the brake & accellerator down then turn the ignition on. The car with the spanner flashes a number of times which gives a clue to the fault. Mine is P1120 .... any clues. The forum also mentioned a UEC (any clues what this is) and also a TPS (again a clue?).

Anyone got any ideas??

Thanks

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Tue 14 Jan 2014 17:22
Vauxhall Corsa 1.4 05 model - Engine revving after battery change - elekie&a/c doctor

Firstly,Corsa C and D models do not have an idle control valve.All models are fly-by-wire with a motorised throttle flap.The P1120 refers to a throttle pedal sensor fault,but I can't see how changing the battery could affect this.I would disconnect the battery for 10 mins and retry and drive the car to relearn basic values.hth

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Tue 14 Jan 2014 22:24
Vauxhall Corsa 1.4 05 model - Engine revving after battery change - Robin the Technician

Hi, i presume fky by wire means it does not have a throttle cable? I disconnected the battery for about 4 hours and then reconnected it. Started it up and the car with the spanner through it is still lit!! Is it worth buying a code reader/resetter? Theres one on ebay for 20 quid + p&p but its for OBD2 & EOBD. Any idea if that is suitable for the Corsa?

Thanks

Robin the Technician - i fix, threfore i am

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Tue 14 Jan 2014 23:39
Vauxhall Corsa 1.4 05 model - Engine revving after battery change - elekie&a/c doctor
Worth a try.I don,t know how accurate these Xmas cracker scanners are.Corsa of this age will be obd compliant.hth
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Wed 15 Jan 2014 09:35
Vauxhall Corsa 1.4 05 model - Engine revving after battery change - hardway

Have you got a lap top?

If yes then buy one of the clone copy version of "tech II".

and reset the throttle values,I always do after battery change on Vaux.

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Sat 25 Jan 2014 13:13
Vauxhall Corsa 1.4 05 model - Engine revving after battery change - Robin the Technician

Update: After a short run it settled down - even though the engine warning light was still on. Came to use it Monday (after I'd ordered the EOBD 2 tool) and the warning light went off!!! Checked it all out with my newly arrived tester and all is now well.

Thanks to those who offered advice, much appreciated.

These are the views of Robin the Technician - I fix, therefore I am

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