M2RTY
Member
Registered: 25th May 01
User status: Offline
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ok, car was lumpy when cold on idle
replaced MAF with new one
runs fine
now runs lumpy when at 30mph in 5th and you put food down
only thing i can think of is the clibs holding it in are loose and its sucking air in wrong, it sounds a bit louder then norma, like if air box is disconnected
any other ideas?
its a 1.2 16v
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Fonz
Premium Member
Registered: 12th May 06
Location: Newbury, Berks
User status: Offline
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i would expect a car to be lumpy in 5th doing 30mph.....not v high on the revs, only just above idle surely? that wud explain the lumps to me
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M2RTY
Member
Registered: 25th May 01
User status: Offline
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used to be fine tho, when you put foot flat down it used to be smooth. its smooth on my other 2 corsas as i tested it
will put some tighter clips on it tonight and see if that helps
cheers
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skell
Member
Registered: 18th Sep 05
User status: Offline
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Exactly same scenario for me with the 12v.
Been told it could be the idle control valve..... feels lumpy clogged sort of and then comes back to life. it does it in first aswell sometimes
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M2RTY
Member
Registered: 25th May 01
User status: Offline
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yeah might be same on mine........have you done MAF yet?
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X 60RSA
Member
Registered: 20th Aug 01
Location: Lincoln
User status: Offline
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Prob wont make any difference but disconnect the battery for 15 mins and try again.
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neil h
Member
Registered: 28th Sep 06
User status: Offline
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might be the fuel injector, had a similar thing with mine and it turned out the fuel injector needed cleaning.
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skell
Member
Registered: 18th Sep 05
User status: Offline
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quote:
Originally posted by M2RTY
yeah might be same on mine........have you done MAF yet?
Yep changed maf already, before i changed maf it wouldn't rev high, now it struggles at low revs 
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