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post #20 of (permalink) Old 17th August 2011
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Wink Re: Renault - Laguna II - dci Engine Management Light *Fixed*

Turbo control solenoid valve should have some noise because its working on various frequency current. Simply, its closing and opening all the time. Changing frequency will change open and close time of the valve and that is how it controls position on waste gate rod. Turbo solenoid is problem in rare cases, but turbo pressure sensor is most likely the problem. You just need to pull it of the turbo pipe, clean pipe and sensor, plug it back to pipe and tie it to pipe with some wire plastic.
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