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Author 1.2 engine pissing me off....
Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
10th Jun 05 at 20:52   View User's Profile U2U Member Reply With Quote
im getting flat spots all over the place between 1 and 3 k , if i push my foot hard on the accelerator thats when i get them if i build up gradually it seems ok, is it the filter ? i only have an airbox with a couple of holes wing side no where near the engine...
Adam-D
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Registered: 11th May 02
Location: Cheshire
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10th Jun 05 at 20:59   View User's Profile U2U Member Reply With Quote
cts.......
overfueling
Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
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10th Jun 05 at 21:12   View User's Profile U2U Member Reply With Quote
doubt its overfuelling getting 230 miles too 20 quid
MR2Mike
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Registered: 20th Jan 05
Location: Old Trafford. Drives: MR2 N/A
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10th Jun 05 at 21:56   View User's Profile U2U Member Reply With Quote
im havin same trouble mate piece of turd ! its crap being young and unable to insure good cars lol
Matt G
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Registered: 17th Jan 05
Location: Leicester
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10th Jun 05 at 22:06   View User's Profile U2U Member Reply With Quote
lol aint that the truth
MR2Mike
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Registered: 20th Jan 05
Location: Old Trafford. Drives: MR2 N/A
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10th Jun 05 at 22:12   View User's Profile U2U Member Reply With Quote
lol, cant wait to get at least a 1.4 in it, anything faster than this lol
Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
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10th Jun 05 at 22:20   View User's Profile U2U Member Reply With Quote
tbh my car did run well its only done 35k.
MR2Mike
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Registered: 20th Jan 05
Location: Old Trafford. Drives: MR2 N/A
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10th Jun 05 at 22:40   View User's Profile U2U Member Reply With Quote
mines dun 77k, which makes it even shitter lol
Mistamist
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Registered: 16th Jul 03
Location: Gillingham, Kent
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10th Jun 05 at 22:51   View User's Profile U2U Member Reply With Quote
the whole rev range on a 1.2 is a flat spot.
mikehiow
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Registered: 12th May 05
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11th Jun 05 at 02:35   View User's Profile U2U Member Reply With Quote
nice to see some constructive comments there,

same problem here
Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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11th Jun 05 at 09:03   View User's Profile U2U Member Reply With Quote
check that the hot air valve inside the airbox is functioning properly. Make sure its not wedged half shut
Twiggy
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Registered: 15th Oct 04
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11th Jun 05 at 10:33   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by M15T XE
the whole rev range on a 1.2 is a flat spot.


You beat me to it!!!!
Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
11th Jun 05 at 15:53   View User's Profile U2U Member Reply With Quote
thats fair enough but at the end of the day its my first car i would rather it was working properly than malfunctioning , and whats this hot air valve ??
Graeme
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Registered: 26th Jul 04
Location: Northampton
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11th Jun 05 at 15:56   View Garage View User's Profile U2U Member Reply With Quote
have u got an induction kit on it cos it sounds like that!!!!
Graham
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Registered: 12th Oct 03
Location: Lincoln.
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11th Jun 05 at 15:58   View User's Profile U2U Member Reply With Quote
when you put your foot down does it chug up and seem to die, if so its your o2 sensors, either air mass or lamba?
Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
11th Jun 05 at 16:07   View User's Profile U2U Member Reply With Quote
No induction kit its nothing really serious, and it doesnt chug it just like stops for a second like stops accelerating and then goes again.
infinitycorsa
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Registered: 3rd Apr 02
Location: Stourport-on-Severn, Hereford and Worcester
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11th Jun 05 at 17:17   View User's Profile U2U Member Reply With Quote
sounds like old age

only kiddin
Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
11th Jun 05 at 17:25   View User's Profile U2U Member Reply With Quote
anyone know if a new filter or even a performance air filter would make a difference ?
MR2Mike
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Registered: 20th Jan 05
Location: Old Trafford. Drives: MR2 N/A
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11th Jun 05 at 20:20   View User's Profile U2U Member Reply With Quote
im havin exactly same problem
dna23
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Registered: 1st Nov 04
Location: Northamptonshire
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11th Jun 05 at 21:34   View User's Profile U2U Member Reply With Quote
u got a decent cold air fitted rob? its just a flat spot, the torque curve on 1.2s is rather small so its more likely to get them, the best way to reduce the effects of them is a good supply of cold air and also new sensors
Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
11th Jun 05 at 21:40   View User's Profile U2U Member Reply With Quote
What new sensors sam AFM ... any others ?
Mase
Premium Member

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Registered: 16th Sep 01
Location: Derbyshire
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11th Jun 05 at 21:53   View Garage View User's Profile U2U Member Reply With Quote
http://www.corsasport.co.uk/board/viewthread.php?tid=218896

Mase
Adam_B
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Registered: 13th Dec 00
Location: Lancashire
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11th Jun 05 at 21:57   View User's Profile U2U Member Reply With Quote
when was it last serviced? id just change plugs, filters and oil if its been a while.
Graeme
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Registered: 26th Jul 04
Location: Northampton
User status: Offline
11th Jun 05 at 22:46   View Garage View User's Profile U2U Member Reply With Quote
sounds like it could be as simple as a block in ur air feed pipe!!!

stop gettin much air to engine so slightly overfueling!!!
5doormodder
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Registered: 16th May 02
User status: Offline
11th Jun 05 at 23:28   View User's Profile U2U Member Reply With Quote
i had the same problem and just lived with it, now my engine managment light keeps comming on when i stop (idle) and the flat spot acurs when i pull away, sometimes the car judders and feels like it wants to stall, when i give it a few revs the light goes off and the car drives normal again. Ive been told that its a faulty Air Flow Meter (or air mass meter) they are £220 new from vaux !!






[Edited on 11-06-2005 by 5doormodder]

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