bhart68
Member
Registered: 28th Sep 07
User status: Offline
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Hii
Iam sure this will not be your type of car but someone may be able to help
i have just bought the car and the engine management light keeps coming on intermittantly. I have had the diagnostic machie on it and it said that either the crank sensor or the mass air sensor is faulty. Is there any way of telling before i buy both
Any help appreciated
Barry
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ainsley_brader
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Registered: 24th Mar 02
Location: Tattershall, Lincolnshire
User status: Offline
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more details needed here.
What year is it for a tsart i'm assuming its a corsa b with the 3 cylinder engine.
Depending on the scan tool that was used crank sensor will sometimes show as a fault if the engine isnt running in which case you can dismiss this but as i say depends on the machine!
Are there any other symptons other than the light coming on.
Without any more info id guess the afm is much more likely!
Ainsley
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bhart68
Member
Registered: 28th Sep 07
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Sorry for the lack of detail
it is a 2000 mk 1 I think, it cangaroos a bit and then the light comes on, not all the time though. strangely (or not) it doesn't do it on the way to work in the morning perhaps because of the temperature.
Thanks in advance
Barry
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bigjim172000
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Registered: 3rd May 05
Location: New Buckenham, Norfolk
User status: Offline
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Personally i would go for the crank sensor judging by what youve said.
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bhart68
Member
Registered: 28th Sep 07
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Ok guys, now im no further forward
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pow
Premium Member
Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
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Replace the Air Flow Meter mate, its a classic problem with that Engine!
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bigjim172000
Member
Registered: 3rd May 05
Location: New Buckenham, Norfolk
User status: Offline
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crank position sensor on my 1ltr played up when the engine was warm which is why i said change it first. Plus its cheaper by miles lol
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bhart68
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Registered: 28th Sep 07
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Strangely no problem to or from work today(only 3 miles each way, and it was a bit cooler today if that does have an affect, but it is the first time I have driven home from work without the cangarooing or the light comin on, the car was steam cleaned before I bought it, apparently that can cause sensor issues, Is that so?
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AndyCorsaSport
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Registered: 12th Feb 06
Location: Horsforth, West Yorkshire
User status: Offline
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quote:
Originally posted by bhart68
Strangely no problem to or from work today(only 3 miles each way, and it was a bit cooler today if that does have an affect, but it is the first time I have driven home from work without the cangarooing or the light comin on, the car was steam cleaned before I bought it, apparently that can cause sensor issues, Is that so?
Steam cleaning it shouldnt cause any problems, i do mine twice a week
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bhart68
Member
Registered: 28th Sep 07
User status: Offline
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Oh well it didn't last, I drove around the corner tonight and the engine manaement light came on as did the cangaroo impression.
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bhart68
Member
Registered: 28th Sep 07
User status: Offline
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Right after taking the advice on the forum, I have replaced the crank sensor and the MAF sensor, and its still jumping and the engine management light still comes on randomly. I have not reset the system though, how do you do that?
Any help appreciated
Barry
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ainsley_brader
Member
Registered: 24th Mar 02
Location: Tattershall, Lincolnshire
User status: Offline
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battery off overnight will work or there is a 30amp fuse you can pull
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bhart68
Member
Registered: 28th Sep 07
User status: Offline
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Ok i will try that, but I cant find the radio code anywhere, so presumably I will lose the use of it after disconnecting the battery?
Barry
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deano87
Member
Registered: 21st Oct 06
Location: Bedfordshire Drives: Ford Fiesta
User status: Offline
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quote:
Originally posted by pow
Replace the Air Flow Meter mate, its a classic problem with that Engine!
Replaced mine, now it doesn't bog down  BUT I didn't have EML.
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bhart68
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Registered: 28th Sep 07
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Come on guys someone must have an idea what to try next???
Barry
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adamC20xe
Member
Registered: 19th Oct 05
Location: fife
User status: Offline
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engine coolant temp sensor, plus leave battery disconnected for a while to reset any fault codes
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bhart68
Member
Registered: 28th Sep 07
User status: Offline
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just had the car up on a diagnostic machine and it is showing low voltage on AFM fault, anyone got any experiance of this? i have just fitted a new AFM from the web.
Barry
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