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Author My 2 litre 16v Corsa Problem
corsa sam
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Registered: 14th Jul 06
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19th Sep 06 at 21:38   View User's Profile U2U Member Reply With Quote
Hi ppl im kinda new on here but could really do with some help. My car has a 2litre 16v red top engine in it and when the car gets warm and i try putting the power down hard it starts miss firing. Its fine when its cold and if you put on the power easy its ok. Ive jus serviced the car and it aint losing water. Has any1 else got any ideas im thinking about the coil next and a new set of leads. Can some 1 please point me in the right direction as its 1 ov these jobs that could do your head in

Thanks for your time

Sam
corsa sam
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Registered: 14th Jul 06
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20th Sep 06 at 07:25   View User's Profile U2U Member Reply With Quote

ttt
Dave A
USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
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20th Sep 06 at 08:54   View User's Profile U2U Member Reply With Quote
any fault codes stored in the ecu? does the management light come on?
corsa sam
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Registered: 14th Jul 06
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20th Sep 06 at 09:00   View User's Profile U2U Member Reply With Quote
I have a mate with all the computer stuff to get into the ecu but it cant access it so dont no if it has any faults, you got any idea what it might be jus ad a new throttle position sensor about 2 months ago too.
corsa sam
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Registered: 14th Jul 06
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20th Sep 06 at 11:23   View User's Profile U2U Member Reply With Quote
ttt
corsa sam
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Registered: 14th Jul 06
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20th Sep 06 at 17:42   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by corsa sam
ttt
corsa sam
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Registered: 14th Jul 06
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20th Sep 06 at 17:44   View User's Profile U2U Member Reply With Quote
ttt
Ben ev
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Registered: 23rd Oct 05
Location: kingslynn / torquay
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20th Sep 06 at 18:09   View User's Profile U2U Member Reply With Quote
would say that is a fuelling problem, would start by looking for vacum leaks failing that would check afm then start looking at injectors and earths on the main harness.
Wad_2002
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Registered: 26th Feb 06
Location: Falkirk
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20th Sep 06 at 21:15   View User's Profile U2U Member Reply With Quote
injectors, timing?
Dave A
USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
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20th Sep 06 at 21:17   View User's Profile U2U Member Reply With Quote
does the em light come on with ignition and go out when the engine is started?
corsa sam
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Registered: 14th Jul 06
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20th Sep 06 at 21:24   View User's Profile U2U Member Reply With Quote
Yeah engine management light goes out smells ov petrol in da car so you dont think it will be the coil then its doing my head in mite drop another lump in it
Ben ev
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Registered: 23rd Oct 05
Location: kingslynn / torquay
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21st Sep 06 at 10:58   View User's Profile U2U Member Reply With Quote
10 says its the afm
corsa sam
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Registered: 14th Jul 06
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21st Sep 06 at 11:59   View User's Profile U2U Member Reply With Quote
Is that what you reckon mate, thats wot ill try next then how come it only happens when its warm tho and the smell of petrol sorry for all the questions appreciating all your help tho

Thanks
Ben ev
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Registered: 23rd Oct 05
Location: kingslynn / torquay
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21st Sep 06 at 14:37   View User's Profile U2U Member Reply With Quote
smell of fuel coz the ecu is not metreing the air flow accordingly, hense putting in to much fuel-air.does it run fine wen cold?
corsa sam
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Registered: 14th Jul 06
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21st Sep 06 at 14:45   View User's Profile U2U Member Reply With Quote
Yeah mate runs perfect wen cold y is that a sign not too good on the electrical side of things realli
rossastra16v
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Registered: 6th Jan 05
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21st Sep 06 at 14:53   View User's Profile U2U Member Reply With Quote
Is it coil or coilpack. It could be breakdown when it gets hot. Disconnect the AFM and see what happens when it get hot. it will run in limp home but you will see if it still does it
corsa sam
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Registered: 14th Jul 06
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21st Sep 06 at 15:06   View User's Profile U2U Member Reply With Quote
Coil i think mate? out 0f a 91 j reg astra MK3 GSI
rossastra16v
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Registered: 6th Jan 05
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21st Sep 06 at 15:13   View User's Profile U2U Member Reply With Quote
Well i could be the coil breaking down when it gets hot. I had a problem with mine that was like this. I found out it the the coil lead. Lose connection and when it got hot it started to miss. Best thing to do is when the car get hot and starts to miss is disconnect the afm see if it still does it. Should help to rule that out
westsidecorsa
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Registered: 4th Sep 02
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21st Sep 06 at 15:23   View User's Profile U2U Member Reply With Quote
U2u "Tom n"as he had exactly the same on his 2ltr
corsa sam
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Registered: 14th Jul 06
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21st Sep 06 at 15:36   View User's Profile U2U Member Reply With Quote
Thanks jus U2U'd him any other ideas guna av a look tonite boout the AFM
shane2corsa
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Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
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21st Sep 06 at 16:16   View User's Profile U2U Member Reply With Quote
also try the Coolant temp sensor on the front of the block, it screws into the thermostat housing, check the wiring and replace the sensor. they dont always show up via the em light but can cause lots of problems
corsa sam
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Registered: 14th Jul 06
User status: Offline
21st Sep 06 at 21:54   View User's Profile U2U Member Reply With Quote
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