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Cuts out when idling in park after about 30 seconds

Runs normally in drive problem only occurs when stationary in park mode diagnostic says mix too lean but no indication as to why

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I would check MAF sensor first it's on the pipe that comes from your air filter and has wires going to it.
These can be cleaned by removing it and spraying some isopropyl alcohol in it but as I don't know what car you have I can't say where on the MAF sensor to spray it.

This has worked for me in the past as the MAF sensor can be £100 plus to buy new.
Hopes this helps

Posted on Nov 10, 2014

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