Adge
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Registered: 28th Aug 04
Location: Lancashire
User status: Offline
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cud this cause a flat spot at lwo revs? any ideas on cost? really need sum info on the effects of a faulty one? can they be cleaned? fitted incorrect or they a common failing?
[Edited on 22-05-2008 by Ian]
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bubble
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Registered: 24th Jan 04
Location: Darwin, NT Australia.
User status: Offline
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quote: Originally posted by Adge
cud this cause a flat spot at lwo revs? any ideas on cost? really need sum info on the effects of a faulty one? can they be cleaned? fitted incorrect or they a common failing?
no. wud cause engine to not run as cant determine TDC for injector duty cycle.
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Adge
Member
Registered: 28th Aug 04
Location: Lancashire
User status: Offline
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not run at all?? well its still runs fine just struggles at low revs then once its past the flat spot its fine, also runs 100% better once EML is on
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bubble
Member
Registered: 24th Jan 04
Location: Darwin, NT Australia.
User status: Offline
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quote: Originally posted by Adge
not run at all?? well its still runs fine just struggles at low revs then once its past the flat spot its fine, also runs 100% better once EML is on
iv never know an engine run without knowing where tdc is, sounds like cud be egr valve cts or anythin. need more info.
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Adge
Member
Registered: 28th Aug 04
Location: Lancashire
User status: Offline
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i knw! hard to find a reliable garage ive been told 100 different things from 100 garages, i just need sum willing to spend sum time on it
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dean101287
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Registered: 22nd Jul 07
Location: Cardiff
User status: Offline
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wot do you mean by flat spot? i think I may have a simular problem
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Adge
Member
Registered: 28th Aug 04
Location: Lancashire
User status: Offline
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like the car doesnt want to move then all of a sudden kicks in and runs fine, then again once u slow back down at traffic lights etc it does it again. but u can still drive round no problems just its bad atlow revs
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dean101287
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Registered: 22nd Jul 07
Location: Cardiff
User status: Offline
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mine runs fine, now and again when doing say 30 in 4th it will judder a bit as if it needs a lower gear. also if you put your foot down from dead stop it seems to take a while and then kick in at 3k revs
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Adge
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Registered: 28th Aug 04
Location: Lancashire
User status: Offline
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mine is same!!!! if u find out wat it is! let me knw! GARAGE told me it was crank sensor today!
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dean101287
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Registered: 22nd Jul 07
Location: Cardiff
User status: Offline
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have you tried spark plugs and leads? it doesnt really bother me as it not that bad at all. also gunna change air filter on the weeked.
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IvIarkgraham
Premium Member
Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
User status: Offline
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could it not be a vacuum leak?
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Adge
Member
Registered: 28th Aug 04
Location: Lancashire
User status: Offline
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i have no idea, any way to check?
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bartstart
Member
Registered: 30th Dec 07
Location: DURHAM
User status: Offline
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my sxi did this got a local home tune out it was the crank sensor on mine
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Adge
Member
Registered: 28th Aug 04
Location: Lancashire
User status: Offline
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so it was still running but just with a flatspot? or it wasnt running?
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johnhara1
Member
Registered: 19th Oct 06
Location: Newcastle upon Tyne
User status: Offline
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Does it have an induction cone filter??
This caused my XE to struggle at low revs. If also had a faulty AFM.
Also have you tried a replacement AFM?
My fiesta used to hesitate and hold back through the whole rev range.
I changed the plugs and gently cleaned the element in the MAF (AFM on yours) with a cotton bud and carb cleaner.
Car is now perfect! No flat spots, no hesitation what so ever.
[Edited on 23-05-2008 by johnhara1]
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Adge
Member
Registered: 28th Aug 04
Location: Lancashire
User status: Offline
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hey mate, yeah ive replace the AFM i am using a induction cone filter tho but the engine was running fine for 12 months until it went into storage for 4 months, thats wen the problems started! just bought a crank sensor from barleyboy so hopefully might sort it!
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Jord16vSport
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Registered: 3rd May 08
Location: colchester essex
User status: Offline
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same problem on my friends astra. wouldnt idle would just cut out, so he got someone he works with to have a look as his engine management light was on and it turned out to be his egr valve
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