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Discussion Starter #1
My 307 2.0 hdi has developed a lumpy tick over:confused:

Do you think the MAF sensor needs cleaning? I do have a K&N filter fitted and I have read the oil from them can cause this.

If so can I use IPA in spray form to clean the sensor?
 

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IPA spray should be fine just remember sensor is quite delicate and avoid blasting to hard with the spray
 

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I've read this blaming of k&N on another forum. K&N clearly state that their gear isn't to blame.

The MAF sensor should be self cleaning - it runs a high voltage current over the wires to burn off any crud.

But I've seen some 407 where the MAF has been coated in oil, and that's come from the oil vapour floating around the air pipes, nothing to do with the air filter.
 

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Discussion Starter #5
OK that's interesting. I may just take it off anyway at some point and have a look to see if it is clean.
 
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