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Old 5th November 2009, 15:41   #1
McGuire86
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Default Revs all over the place when slowing, engine sounds rough

The engine sounds rough like its struggling

When I slow down to a near stop the revs will go down to 0 and back up again like its about to conk out but never does, sometimes it wont do it, only happens randomly, started happening the last few days.
Cant be the oxygen sensor as I just had a brand new one put in around 3 weeks ago.

What could it be ? ICV ?
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Old 5th November 2009, 16:21   #2
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if it's not the lambda, I would:

Take off and clean air filter
Take off and clean throttle body
Take off the ICV and clean it (black goo builds up on them)
Fuel filter?

I'm having same issue at the moment, but I think mine is the lambda... or more specifically, that I have no 2nd lambda...
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Old 5th November 2009, 16:33   #3
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ok i'll try it in the next few days thanks
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Old 5th November 2009, 16:40   #4
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my old saxo used to do this..
it was one of the pipe which used to go on the standard airbox was sucking onto the engine parts..
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Old 5th November 2009, 20:31   #5
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clean the throttle body, happened to mine and a quick clean using carburettor cleaner sorted it out
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Old 6th November 2009, 11:43   #6
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you mean take it apart and give it a good clean right ?
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Old 6th November 2009, 15:27   #7
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After cleaning my icv, throttle, it didn't solve my problem..

I thought it was lambda, so been in garage today. It wasn't the lambda.

it was MAP sensor. See my problem here
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Old 6th November 2009, 18:57   #8
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Quote:
Originally Posted by mcguire86 View Post
you mean take it apart and give it a good clean right ?
just take the air filter off and clean all round the butterfly to get the muck out using carburettor cleaner and a cloth
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Old 10th November 2009, 21:53   #9
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Ok i took the ICV apart and cleaned it with carb spray and a few j-cloths. Took it out that night and didnt do it once.
But then today its started doing it again, it doesnt do it all the time just happens randomly.

I will come to slow down to a near stop and the revs will go down to 0 then back to 10 like its going to cut out, but if i give it a rev it sorts itself out.

Do you think its anything to do with the cambelt as that is starting to squeek as the car is on 59k now and will be looking to get it changed at 60k.
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