N90ATH
Member
Registered: 10th Sep 03
Location: Boreham, Essex
User status: Offline
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right my corsa redtop has started spittin on me really badley (started to misfire)
changed the leads and and plugs and also the dizzy. started it up and gave it a little rev, now when i rev it slowly she runs fine gradually gets up the rev range fireing on all 4 the minute u boot it or rev hard it misses and runs like a sack of shit
did a compression test and all 4 were fine so out of ideas.
only thing i can think of is maybe overfueling, i have a 3.5 bar fuel regulator as well if that makes any diffence ???
chers nath
[Edited on 15-04-2008 by N90ATH]
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Ant
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Registered: 12th May 02
Location: Hereford and Worcester
User status: Offline
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3 bar is probably a lttle to much, id also look at tps sensor with those symptoms.
Is it an early or late xe?
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N90ATH
Member
Registered: 10th Sep 03
Location: Boreham, Essex
User status: Offline
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umm early i thin out of willaysold corsa 
didntr think about tps and yer tought it may be too much lol
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BeArDy
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Registered: 7th Aug 00
Location: Manchester
User status: Offline
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3.5bar FPR WHY????
What have you done to the engine to need this much fuel?
OR are you just thinking more fuel = more power even with no extra air 
[Edited on 13-04-2008 by BeArDy]
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N90ATH
Member
Registered: 10th Sep 03
Location: Boreham, Essex
User status: Offline
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nope was the only thing i had lyin round when mate broke fuel rail 
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BeArDy
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Registered: 7th Aug 00
Location: Manchester
User status: Offline
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thats would be the first thing i would change......
[Edited on 13-04-2008 by BeArDy]
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DAZ1985
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Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
User status: Offline
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I've got a 2.5bar reg
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N90ATH
Member
Registered: 10th Sep 03
Location: Boreham, Essex
User status: Offline
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got one some were so will do it first thing tomoz cheers guys, daz may be in contact if i cant fidn mine lol
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mattk
Member
Registered: 27th Feb 06
Location: St. Helens
User status: Offline
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are these engines so unreliable when there not in a converted car?
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N90ATH
Member
Registered: 10th Sep 03
Location: Boreham, Essex
User status: Offline
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to be fair there not unreliable engine, when u thinbk about the age of the engine plus moving it from one chassis to another u will be gettin some problems but who cares a few problems here and there but when it works its so much fun
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Whittie
Member
Registered: 11th Aug 06
Location: North Wales Drives: BMW, Corsa & Fiat
User status: Offline
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Shouldnt it run about 2 bar? think my old one was.
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Ant
Member
Registered: 12th May 02
Location: Hereford and Worcester
User status: Offline
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quote:
Originally posted by Whittie
Shouldnt it run about 2 bar? think my old one was.
yep late ones on motronic 2.8 run 2 bar with blue injectors early motronic 2.5 was 2.5bar on cream injectors
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willay
Moderator
Organiser: South East, National Events
Premium Member
Registered: 10th Nov 02
Location: Roydon, Essex
User status: Offline
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are they proper leads or cheap ones?
are they the right plugs?
I had the same problem when my shitty std plugs fell to bits, slapped some new ones on and it was fine.
I was also running the wrong spark plugs once and they made it run like shit, I was running the double ended ones not the single.
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N90ATH
Member
Registered: 10th Sep 03
Location: Boreham, Essex
User status: Offline
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well got some nice bosch superfours in there and the leads are decent silcone jobbies and seems to run ok untill i boot it but then does stink of overfueling so will change the fuel pressure later and see if that helps
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N90ATH
Member
Registered: 10th Sep 03
Location: Boreham, Essex
User status: Offline
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well change dthe fuel pressure regulator back to a 2.5 (bugger to find in my pile of crap lol) but its done but still ran ruff
then thought i would check the rotor arm as never did when i changed the dizzy cap. wot a suprise found it bent slightly missing connectgors for 1 and 4 cylinders so changed that and running fine.
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