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1998 VW New Beattle 2.0l trouble code PO440

Customer Question
1998 VW New Beattle 2.0l trouble code PO440
Submitted: 2 years ago.Category: VW
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Answered in 10 minutes by:
2/3/2016
VW Mechanic: camerontech, diagnostic auto tech replied 2 years ago
camerontech
camerontech, diagnostic auto tech
Category: VW
Satisfied Customers: 711
Experience: diagnostic auto tech
Verified

hi there,

im cam, a licenced diagnistic tech.

these purge valve are a duty cyle solenoid and can become sticky and intermittent. if they do not fully open or fully close, this will turn the light on.

you can test the valve and it will pass, than put it through some duty cycle tests and it can stick open or closed.

The only way to properly ceck this is with a smoke machine and working the purge valve .

if it is an intermittent issue, its probably a good idea to replace this valve as i find it has been the culprit 90% of the time.

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VW Mechanic: camerontech, diagnostic auto tech replied 2 years ago

hi there

how did your repair go?

please dont forget to rate me! as it is important for my page

thanks and if you still need assistance , let me know!

cam

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