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Author FLAT SPOTS.......
Andy GSi
Member

Registered: 24th Mar 02
Location: Shropshire, Drives 2.0l 16v Corsa
User status: Offline
   23rd May 04 at 17:36   View User's Profile U2U Member Reply With Quote

they make me when i put my foot down it just doesnt kick in until about 2 1/2 -3 thousand revs!!! whats the best thing to get rid of them??? once i tried disconnecting my battery, so the ECU had reset and sorted the fueling out!!

any ideas???
ZS
Member

Registered: 1st May 04
Location: Belfast
User status: Offline
23rd May 04 at 17:41   View User's Profile U2U Member Reply With Quote

Tried dipping the clutch? Works for me.
broster
Premium Member

Avatar

Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
23rd May 04 at 17:43   View Garage View User's Profile U2U Member Reply With Quote

what engine you got, what mods you done to it, when was it last serviced, instead of dipping the clutch find the problem and sort it that way
ZS
Member

Registered: 1st May 04
Location: Belfast
User status: Offline
23rd May 04 at 17:49   View User's Profile U2U Member Reply With Quote

If it's a 16v engine then it won't have a lot of low end torque, so it will only pull well from 2500 upwards. In other words it's perfectly normal for a standard engine to not pull the skin off a rice pudding until it gets going.
Doug
Member

Registered: 8th Oct 03
User status: Offline
23rd May 04 at 17:50   View User's Profile U2U Member Reply With Quote

Since i put my induction kit on i get a flat sport between 2.5 and 3k revs
James R
Member

Registered: 4th Feb 03
Location: 205GTi16/306GTi16
User status: Offline
23rd May 04 at 17:50   View User's Profile U2U Member Reply With Quote

I second that, I have nothing till after 3k, just drop a cog and boot it
Andy GSi
Member

Registered: 24th Mar 02
Location: Shropshire, Drives 2.0l 16v Corsa
User status: Offline
23rd May 04 at 17:56   View User's Profile U2U Member Reply With Quote

it was serviced not long ago and its a 1.4 16v, i think il have to rev the tits out of it to get it going, with 17's

i might clean my BFO out soon!!

its a pain with flat spots
James R
Member

Registered: 4th Feb 03
Location: 205GTi16/306GTi16
User status: Offline
23rd May 04 at 20:50   View User's Profile U2U Member Reply With Quote

Tb's remove all the flat spots
Greg_M
Member

Registered: 2nd Sep 03
Location: Grantham, Lincolnshire
User status: Offline
23rd May 04 at 20:57   View User's Profile U2U Member Reply With Quote

get it properly chipped if you want the ultimate flat spot revoval, have the power delivered when you want it, the 16v engine oulnt loose that much low down torque, bit it will have a little less than the 8v.
MikeH
Member

Registered: 3rd Apr 03
User status: Offline
24th May 04 at 00:00   View User's Profile U2U Member Reply With Quote

Sounds to me like you don;t have a flatspot but just the power/torque curve of a normal 16v engine.
KennyT
Member

Registered: 4th Aug 03
Location: Kirkcaldy,Fife,Scotland
User status: Offline
24th May 04 at 10:48   View User's Profile U2U Member Reply With Quote

i only get flat spots when the cars been stationary for a while and hot air gets sucked in through the induction kit, a flat spot will kill me at a roundabout one day though, very annoying.
a heat shield for the induction kit would help.
James R
Member

Registered: 4th Feb 03
Location: 205GTi16/306GTi16
User status: Offline
24th May 04 at 11:26   View User's Profile U2U Member Reply With Quote

or put the airbox back on no like you'll loose anypower
Paul_J
Member

Registered: 6th Jun 02
Location: London
User status: Offline
26th May 04 at 23:33   View User's Profile U2U Member Reply With Quote

I have flat spots - i.e. if I 'm sitting at the lights and I try just pulling away in 1st smoothly - it'll almost cut out and then pick up

Of course if I'm racing someone off the lights - having it at 3-4k rpm and then dropping the clutch in 1st has no flat spot.

 
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