Jam666
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Registered: 22nd Mar 08
Location: South Wales Drives: Corsa XE
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I recently did a paperclip test on my xe corsa, which came up lambda sensor and hall sensor, which i have now replaced and my eml light has gone off. Only problem is when im driving it as soon as it hits 4k revs, the light comes on for a split second and it pops and bangs out of the exhaust..does anyone have any opinions on what could be causing this? thanks
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Fraser Young
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Registered: 26th Dec 02
Location: Dundee City Drives: 58 Impreza WRX
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Cat converter issue, potentially?
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Jam666
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Registered: 22nd Mar 08
Location: South Wales Drives: Corsa XE
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no cat
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craig_s
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Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
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does it store a code when it does it?
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Jam666
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Registered: 22nd Mar 08
Location: South Wales Drives: Corsa XE
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no, i keep testing it and its all clear apart from the usual 12
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craig_s
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Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
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is it always at 4k rpm? does engine load make a difference?
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Jam666
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Registered: 22nd Mar 08
Location: South Wales Drives: Corsa XE
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when i am driving its more or less always around the 4k mark. When staitionary and holding the throttle to the floor, the revs go up and down asif i am revving it when i am not, and it pops and bangs like hell
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B3KAN
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Registered: 15th Feb 07
Location: Inverness, Highland
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AFM?
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craig_s
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Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
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that's what mine was doing when my afm was nackered,may be worth trying another.
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Jam666
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Registered: 22nd Mar 08
Location: South Wales Drives: Corsa XE
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hopefully tryin a mates tomorow, just wondering if it could be anythin else
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B3KAN
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Registered: 15th Feb 07
Location: Inverness, Highland
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Mine was doing the same, poping and banging out the air filter and it was a faulty AFM and lambda.
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craig_s
Member
Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
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not much else it could be,this is how mine ran with a nackered afm
http://s61.photobucket.com/albums/h45/sripower/?action=view¤t=MOV00180.flv
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george
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Registered: 23rd Feb 08
Location: Rainham, Kent
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differnent engine but my 1.4 sri 8 valve was doing exactly the same and found it to be the crank sensor was loose. may just need the 10mm bolt tightening
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Jam666
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Registered: 22nd Mar 08
Location: South Wales Drives: Corsa XE
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just tried an afm and it wasnt that
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Jam666
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Registered: 22nd Mar 08
Location: South Wales Drives: Corsa XE
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any other ideas??
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B3KAN
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Registered: 15th Feb 07
Location: Inverness, Highland
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Have you tryed resetting the ecu? and then see if any new codes come up?
Out off intrest was it a brand new lambda you fitted?
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Jam666
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Registered: 22nd Mar 08
Location: South Wales Drives: Corsa XE
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im leaving it reset over night, and it was a new lambda
[Edited on 01-11-2008 by Jam666]
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Jam666
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Registered: 22nd Mar 08
Location: South Wales Drives: Corsa XE
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any1 before i go and smash the thing up?
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tom130691
Premium Member
Registered: 13th Sep 08
Location: Daventry
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crank sensor as mentioned or cam
[Edited on 01-11-2008 by saxo_tom]
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Jam666
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Registered: 22nd Mar 08
Location: South Wales Drives: Corsa XE
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but woodnt they come up as a fault on the eml?
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Jam666
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Registered: 22nd Mar 08
Location: South Wales Drives: Corsa XE
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ive tried different afm,distrubutor,lambda, leads,plugs,cap,rotor arm and fuel pump. There are no codes on my ecu, ive let it reset over night twice. it starts and revs fine, then until u hit 4k revs the light flickers on. when i am driving it and hit 4k the eml flickers on at the car becomes really lumpy and backfires until i change gear. thanks
[Edited on 02-11-2008 by Jam666]
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george
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Registered: 23rd Feb 08
Location: Rainham, Kent
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mine never cam up as a fault because there was anything wrong with it, it was just loose on the bracket
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Jam666
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Registered: 22nd Mar 08
Location: South Wales Drives: Corsa XE
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what was loose?
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Jam666
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Registered: 22nd Mar 08
Location: South Wales Drives: Corsa XE
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also wen i unplug the afm it cuts out straight away..does the same when i unlplug the crank sensor
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george
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Registered: 23rd Feb 08
Location: Rainham, Kent
User status: Offline
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well course it will because the crank sensor aint reading when to spark so there will be no spark. where the crank sensor bolts to the bolt check that te cranck sensor aint loose on the block
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