CEL and whistle

[GTIGeorge]

I was driving home from Sydney and noticed my MFD flash a couple of times then the CEL lit up. I pulled over and checked all fluid levels and continued home. After about 20 Ka I noticed a high pitched whistle coming from the rear of the engine bay. I assumed that it could be the pcv valve. When I pulled the dipstick the whistle stopped and the idle was rough. I smoothed out when replaced and the whistle returned. If it is the pcv, is it an easy replacement and are they available aftermarket. Thanks in advance for any advice.


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[Lucas_R]

You are in luck - not only are replacement PCV's for Mk5 GTI's cheap, but a local Sydney shop has them in stock

Pressure Control Valve (PCV) - Euro Revolution

[GTIGeorge]

Something inexpensive for my GTI , I'm shocked


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[GTIGeorge]

I replaced my PCV with a genuine part today and although it is running heaps better with no whistle , the cel is still on. Do I need to have this cleared with a scan tool or is there another way of doing it?


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[Lucas_R]

It will likely go away on its own after a few days. If not, then you will need to get a mechanic clear the code (even places like Supercheap Auto can clear codes these days).