LukeGSi
Member
Registered: 9th Dec 03
User status: Offline
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My mums corsa is still using way too much fuel (70 miles on £20)....
The garage said it was either temp sensor or lambda sensor and have changed both, after that didn't cure it they just said "It needs a new ECU" but gave no explanation as to why!! When she got the car back I did the paperclip test and it gave oxygen sensor fault and MAP sensor fault....I then reset ECU and all codes went and management light hasn't come back on since......Am I right in thinking the oxygen sensor is the lambda sensor?? So is the MAP sensor the problem??
Does anyone have any ideas what could be causing this, there are no leaks and the car seems to be running ok although does idle/rev slightly high at times....Cheers 
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PaulW
Member
Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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MAP sensor will cause it to run rough & pos overfuel... but ECU will complain
lambda is oxygen sensor on the c12nz
give the ICV a quick clean, but then again the MAP will also cause idling issues
may be worth getting the injector cleaned or pick up another from a scrappy... cleaned the injectors on the GSI a month ago & fuel economy is sooo much more better now! runs better too!
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LukeGSi
Member
Registered: 9th Dec 03
User status: Offline
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Aye thats what I thought if it was the map sensor then management light would be on again  Is the ICV a cock to get to on them? Also what is involved with cleaner the injector?
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Dan
Premium Member
Registered: 22nd Apr 02
Location: Gorleston on Sea, Norfolk
User status: Offline
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lukas, to do the icv it takes a whole 2mins 
cant see the injectors making it use that much fuel...
id try a new map sensor. and new icv u can always take them back
Adult GiftsClick here to vist us
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LukeGSi
Member
Registered: 9th Dec 03
User status: Offline
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Take them back!!
I'll just wait to you come over next and we'll do it 
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lozzysloudcorsa
Member
Registered: 24th Aug 04
Location: Surrey
User status: Offline
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ICV?
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James_DT
Member
Registered: 9th Apr 04
Location: Cambridgeshire
User status: Offline
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Idle Control Valve, IIRC.
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LukeGSi
Member
Registered: 9th Dec 03
User status: Offline
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Yup Idle Control Valve = ICV. Still don't think wank ICV would cause that mucho of a petrol consumption problem tho
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PaulW
Member
Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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icv is pish to get to on the SPI
rear-left of the inlet fanimold - 2 torx screws holding it in
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Kerry
Member
Registered: 5th Oct 01
Location: Norwich
User status: Offline
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he says yes he saw it earlier...
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