Mike2k111
Member
Registered: 7th Oct 03
Location: N.Wales
User status: Offline
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I might be going about this completely the wrong way. Anyway, managed to get hold of a working AFM which solved the original problems I had. However, when stopping at traffic lights etc it drops and idles at around 500 and feels like its about to stall (occasionaly happens as soon as the car is started too). I know this sounds like an ICV problem but this never used to happen with the old AFM before it broke. Ive been trying to adjust the screw on the AFM to see if maybe this was setup differently but this does not seem to alter anything at all, even after the lambda sensor is unplugged nothin changes when the screw position is changed. Is this normal? 
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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how many pins are on the afm? how many pins are on the loom?
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Mike2k111
Member
Registered: 7th Oct 03
Location: N.Wales
User status: Offline
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6pin AFM and 6pin on the loom mate
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X 60RSA
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Registered: 20th Aug 01
Location: Lincoln
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Personally i wouldnt fewk with the AFM screw unless you've got the gear to set the car up properly.
It could be the ICV.
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Mike2k111
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Registered: 7th Oct 03
Location: N.Wales
User status: Offline
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Yeh can understand that mate, but my dads a mechanic and made sure that anything that was changed was put back identical to how it started. What I couldn't understand though is why nothing changed at all when the screw was adjusted. I know that the lambda does the job of that screw but when the lambda is unplugged thought that adjusting the screw actually makes a difference
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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no, when the lambda is unplugged the ecu replaces the lambda signal with a pre determined value.
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Mike2k111
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Registered: 7th Oct 03
Location: N.Wales
User status: Offline
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Right cheers dave, would explain that anyway. What exactly does the screw on the AFM do then?
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
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adjusting it can make it run rich / lean
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
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info here:
http://www.corsasport.co.uk/board/viewthread.php?tid=281763
loads more here:
http://www.corsasport.co.uk/board/viewthread.php?tid=281763
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ckallis500
Member
Registered: 14th Dec 04
Location: plymouth
User status: Offline
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if its a c20xe have you got an are filter on it? i know they dont like them due to the hot air being sucked in...
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Mike2k111
Member
Registered: 7th Oct 03
Location: N.Wales
User status: Offline
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Yeh mate its a 20XE but im using a BMC - CDA enclosed unit so heat soak shouldn't be too much of an issue
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