Haimsey
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Registered: 8th May 05
Location: Nottingham Drives: Corsa B
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It keeps stuttering and when pulling off in 1st it just loses revs and then jerks back to life a few seconds later, not great pulling out into traffic 
Does that sound like the AFM?
Not long replaced it either  (Warren.g will remember)
Would my induction kit (BMC) be causign them to mess up? ill take it off if it keeps being a gay 
Marcy Marc 
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Behr
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Registered: 5th Feb 07
Location: Hemel Hempstead
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sounds like you need new HT leads and sparks mate same was happening in my old pug and that cleared it up a treat
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Haimsey
Premium Member
Registered: 8th May 05
Location: Nottingham Drives: Corsa B
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It sometimes starts crap too, as in it will start and then the revs just drop (down to about 400/500rpm and then might pick up, if not it just cuts out
Marcy Marc
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Hamish
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Registered: 4th Apr 05
Location: Ashtead, Surrey Drives: 100bhp Mint with Hole
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possibly ICV?
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Warren G
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Registered: 14th May 06
Location: Kent
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sounds more like IAC valve if revs drop and idles funny???
does it bog down while driving along?
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Haimsey
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Registered: 8th May 05
Location: Nottingham Drives: Corsa B
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Yep, tends to do it more in 1st, sometimes in 2nd and also 3rd.
Just driving nornally and acellerating makes it stutter before revving normally
doesnt as much idle funny, idles fine 800rpm, its just on the initial start up each time
thanks for help guys, hope this isnt more money engine wise
Marcy Marc
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Warren G
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Registered: 14th May 06
Location: Kent
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sounds like its anyother AFM, i will see if I can get you another one  , haven't got any atm
is it same symtons as before?
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Haimsey
Premium Member
Registered: 8th May 05
Location: Nottingham Drives: Corsa B
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seems to be, could this be due to the BMC that its munching the AFM's up? if it ill, ill get rid of the fooker
Cheers Warren
Marcy Marc
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Warren G
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Registered: 14th May 06
Location: Kent
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they dont help the matter tbh, but i cant see it making that much difference
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Haimsey
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Registered: 8th May 05
Location: Nottingham Drives: Corsa B
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hmmm, my cars just being a fag then 
Is it possible to clean the AFM at all  or is it a case of oh, ive buggered it, end of AFM's life
Marcy Marc
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Warren G
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Registered: 14th May 06
Location: Kent
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what you can do, check to see if theres any moisture in there (that buggers them right up)
if there is, get rid of that air filter thingy you have
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Haimsey
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Registered: 8th May 05
Location: Nottingham Drives: Corsa B
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Ah right, ill have a check tomorrow, thanks.
Im pretty sure i shall have to resort back to standard box and panel filter when i fit my strut anyways, so ill have a look at getting rid if its the cause of teh problems.
Thanks for help warren and others
Marcy Marc
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alb22
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Registered: 23rd Jun 07
Location: Strood, Kent
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Was gonna post today about the same thing! Mine bogs down when you pull away, then it takes of and all is normal again.
Tried a AFM off of ebay, it made it better, but it introduced a flat spot around 4000rpm. It was a cheap chinese thing, so was probably a waste of time. Will try and get a genuine one instead. Mines a 1.2sxi also.
Induction kit won't help with AFM life, as they can let a little more dirt through than the standard air filter. Standard box and gen. vauxhall filter will give best AFM life, but they never do last that long really. Cleaning with electrical cleaner sometimes gets a few more miles out of them.
[Edited on 08-08-2007 by alb22]
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Richie
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Registered: 3rd Dec 02
Location: Newport, Wales
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Haimsey......
Do me a favour.... unplug your lambda sensor. Its a large 4 pin plug here:
Then take it out for a drive. The engine management light will come on while its un plugged.. but dont worry.
Does the stuttering stop then?
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Haimsey
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Registered: 8th May 05
Location: Nottingham Drives: Corsa B
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Okie, i will do that and take it for a drive in a bit  not going to damage it in anyway is it?
Marcy Marc
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ed
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Registered: 10th Sep 03
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Sounds like it could have any number of faulty sensors on it.
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Haimsey
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Registered: 8th May 05
Location: Nottingham Drives: Corsa B
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No EM light comes on though, it just stutters and pulls off poorly and starts poorly
Marcy Marc
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ed
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Registered: 10th Sep 03
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There are a lot of problems which could cause this though. It's funny how whenever somone gets a problem like this it's always the MAF sensor or the ICV. Actually, the exhaust gas recirc valve seems to be a popular one that crops up every now and again.
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Haimsey
Premium Member
Registered: 8th May 05
Location: Nottingham Drives: Corsa B
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Ive changed the EGR valve that solved my problem of not being able to go over 70pmh
What do you think it could be then?
Marcy Marc
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ed
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Registered: 10th Sep 03
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You missed my point, you can't just guess what's wrong with it from a vauge description of the problems. The engine needs to be hooked up to a diagnosis machine to pin point the problem.
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Richie
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Registered: 3rd Dec 02
Location: Newport, Wales
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Ed... mine went on Tech2 for the same problem and never got to the bottom of it... but every time we unplugged the lambda the engine ran fine.
Replaced the AFM, crank sensor, EGR, ICV, CTS and TPS sensors..... didnt make no difference.
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Hamish
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Registered: 4th Apr 05
Location: Ashtead, Surrey Drives: 100bhp Mint with Hole
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but if the EML isnt on then surely a fault wont be stored
[Edited on 08-08-2007 by Hamish]
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Richie
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Registered: 3rd Dec 02
Location: Newport, Wales
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Thats right....
We had to drive around with Tech2 connected while pulling off at roundabouts ect but no bizarre values were coming up either on real time monitoring
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ed
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Registered: 10th Sep 03
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My 1.2 16v's light didn't come on when I had issues with a crank shaft position sensor, however it stored enough information for them to be able to diagnose that it was that sensor at fault.
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Haimsey
Premium Member
Registered: 8th May 05
Location: Nottingham Drives: Corsa B
User status: Offline
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Im confused now
Marcy Marc
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