Johnyboy18
Member
Registered: 17th Feb 04
Location: Chelmsford Drives: ibiza cupra
User status: Offline
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when i start the car it struggles to start, and takes a while for the revs to get up, when they do, it revs a bar above the one and isnt consistent (keeps moving up and down) and does it for ages. Started doing it yesterday, it felt like it would stall very easily. I have an induction kit on the car, and yesterday the car run low on petrol - don't know if this would make my car do this. Any opinions on what is happening? thanks in advance people, John
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fragpot
Member
Registered: 29th Feb 04
Location: Linlithgow, West Lothian
User status: Offline
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Check the idle valve and the AFM as these can commonly lead to erattic idle problems when using an induction kit. It sounds like the car is misfiring, check the sparkplugs are all ok.
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Paula Corsa
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Registered: 2nd Feb 05
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Could be your idle control valve, but I would also check your hoses for any splits or tears. I had a similar problem and there was a split in the hose on my AFM.
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Johnyboy18
Member
Registered: 17th Feb 04
Location: Chelmsford Drives: ibiza cupra
User status: Offline
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wheres the idle control valve, what do i do. also checked under the bonnet, there is a very small hole from the pipe which meets the induction kit. AFM? cheers for the help so far people
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Paula Corsa
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Registered: 2nd Feb 05
User status: Offline
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Air Flow Meter.
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Johnyboy18
Member
Registered: 17th Feb 04
Location: Chelmsford Drives: ibiza cupra
User status: Offline
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what about the small hole on the pipe to the induction kit would that make a difference, also where the idle control valve please
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Paula Corsa
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Registered: 2nd Feb 05
User status: Offline
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Yeah a small hole could make a difference. Try putting a bit of gaffer tape round it, to see if that rectifies the problem. Idle conrtol valve is situated on the pipework, under the inlet manifold, I think.
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Johnyboy18
Member
Registered: 17th Feb 04
Location: Chelmsford Drives: ibiza cupra
User status: Offline
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how easier a job is it change the sparkplugs, does sound like its misfiring also. its funny how its fine one day, and suddenly its runs rubbish. thanks for your help paula btw, much appreciated
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Johnyboy18
Member
Registered: 17th Feb 04
Location: Chelmsford Drives: ibiza cupra
User status: Offline
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bttt, what can i do to resolve this problem?should i still drive my car around
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Johnyboy18
Member
Registered: 17th Feb 04
Location: Chelmsford Drives: ibiza cupra
User status: Offline
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anyone
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fragpot
Member
Registered: 29th Feb 04
Location: Linlithgow, West Lothian
User status: Offline
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A hole in the airtrunk after the AFM can cause idle problems. I would check all round the black airtrunk and look out for any cracks and holes. Duck tape will fix should u find any.
Spark plugs are easy to check. unplug the DIS connector and remove the sparkplugs. No leads or anything to worry about, if you have a valver. Ideally what u want to do is run the car for a few mins while its running crap, turn it off and see if one of the sparkplugs is wet with fuel, meaning the chamber is not firing. Sometimes carbon builds up makes the spark so bad it cant ignight the fuel mix. Give the sparkplugs a good clean with a wire brush and check the gaps with a feeler gauge if your oldskool, or just guy 4 new plugs. Be very carefull when you put the plugs back in, its a strange feeling, its like loose then tight. Dont over torque them, if you thread the block your really fucked 
Theres a number of other things it could be, vacum leak somewhere, fuel filter etc. so its pretty impossible to diagnose over the internet.
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