-wylo-
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Registered: 4th Oct 04
Location: Dunfermline
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Recently got the 2L 8V engine from a cav sri put into my corsa.C20NE i think 
Basicaly its running like a bag of shit. It worked perfect in the cav which is annoying me. all the plugs are new and tight, any ideas on why its only running on 3 cylinders? Wired in wrong? Could it just be something simple like distributer cap and HT leads? however surely they will be working fine if this problem didnt occur in the cav?
Any help would be appreciated. cheers
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Rileysport
Member
Registered: 18th Jun 04
Location: West Yorkshire
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check the dizzy cap, ht leads rotor arm, buy a can of wd40... and the engine code is c20seh i think, the 130bhp one 
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Siberia
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Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
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change one of yer ht leads on a working cyclinder onto the one that isnt working..
its something simple i'd say...
[Edited on 30-11-2004 by Siberia]
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CorsAsh
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Registered: 19th Apr 02
Location: Munich
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you got an MPI fuel pump? If you've gone from SPI to an MPI engine, the SPI fuel pump won't supply enough and could cause it to run badly... Just a thought 
[Edited on 30-11-2004 by CorsAsh]
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Tom N
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Registered: 4th Jun 03
Location: Bradford/Sheff (Uni) Drives: Golf GTI
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you bought a 1.0 in disguise
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Joff
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Registered: 17th Oct 00
Location: Cambridgeshire
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Mine only fired on 2 cyls. 2 dead injectors, so I just got some out of my spares and it's all happy again.
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-wylo-
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Registered: 4th Oct 04
Location: Dunfermline
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quote:
Originally posted by CorsAsh
you got an MPI fuel pump? If you've gone from SPI to an MPI engine, the SPI fuel pump won't supply enough and could cause it to run badly... Just a thought
[Edited on 30-11-2004 by CorsAsh]
its got 2 on it now. The 1200 fuel pump couldnt keep up with the 2L so it was replaced with a corsa GSI pump. then the guy that done it put the 1200 pump under the bonnet where the fuel lines run to make sure it gets enough fuel. I'm puzzled by that like, surely the gsi pump is powerful enough?
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Adam_B
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Registered: 13th Dec 00
Location: Lancashire
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yes, gsi pump would be fine on its own
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-wylo-
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Registered: 4th Oct 04
Location: Dunfermline
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would the extra fuel pump cause it to miss fire though? Could it be overfuelling and flooding one of the cylinders?
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Adam_B
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Registered: 13th Dec 00
Location: Lancashire
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na, thats what ur fuel pressure regulators for
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-wylo-
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Registered: 4th Oct 04
Location: Dunfermline
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ok cheers. so thats one thing it can't be. lol
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ed
Member
Registered: 10th Sep 03
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Electronic fault? Crank position sensor?
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ed
Member
Registered: 10th Sep 03
User status: Offline
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Bad earth? You have wired all the earth straps down off of the engine?
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lee mitchell
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Registered: 26th Jan 01
Location: kent...drive's: eveyones conversion cars hard lol
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i very much doubt he put the 1.2 pump in the engine bay aswell as they are internal pumps. (need to sit in the fuel tank)
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Captain Corsa
Member
Registered: 13th Feb 04
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mine ran on 3 cylinders too.
1.0 toy peice of poop
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
User status: Online
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Does it sound any better higher up the rev range? Usually indicates electrical problems as the fuel ignites be compression alone up the top end.
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Siberia
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Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
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quote:
Originally posted by lee mitchell
i very much doubt he put the 1.2 pump in the engine bay aswell as they are internal pumps. (need to sit in the fuel tank)
i was just about to reply with the same comment 
ae u sure its only actually running on 3 cylinders? or does it just sound that way?
do you know which cylinder is not firing?
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aceman
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Registered: 11th Jun 04
Location: scotland
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firing order? timing p.s any fuel pump will do untill the revs get so high i.e even the 1.2 fuel pump will make it idle fine and not to sure about the internal 12 i think early models had an external one, check the conection on the afm very common on the 8v also i had a simaler prob when the ecu filled with water cause the ruber gromit was fubar
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Rileysport
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Registered: 18th Jun 04
Location: West Yorkshire
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dump the 1.2 pump all together
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Siberia
Member
Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
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quote:
Originally posted by aceman
firing order? timing p.s any fuel pump will do untill the revs get so high i.e even the 1.2 fuel pump will make it idle fine and not to sure about the internal 12 i think early models had an external one, check the conection on the afm very common on the 8v also i had a simaler prob when the ecu filled with water cause the ruber gromit was fubar
actually i havent put my one back in place right since i done my conversion....
friday is a good day 
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-wylo-
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Registered: 4th Oct 04
Location: Dunfermline
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quote:
Originally posted by Ian
Does it sound any better higher up the rev range? Usually indicates electrical problems as the fuel ignites be compression alone up the top end.
Yeah it sounds better up the rev range, like its running properly on 4 cylinders. At low revs the car sounds really lumpy and cuts out sometimes. I'm not 100% that it is only running on 3 cylinders but it defo sounds like that. I've got new leads, distributer cap and rotor arm to put on so i'll see what happens with that.
About the fuel pump, there is defo 2 on it. The gsi one is in the fuel tank replacing the 1200 one and there is another under the bonnet right at the bulkhead where the fuel lines are running. It may not be the original 1200 one, i just assumed it may have been. It must be off something else that has an external fuel pump on it.
I'm pissed off because theres really no need for the extra one.
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Siberia
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Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
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unless the fueling is different on a 2 litre 8v to the way a corsa works i'd just go with the gsi pump.... I.E reconnect the fuel pipes without that other pump under the bonnet... see what happens...
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