simonsky7
Vectra EGR Valve Fault
Summary of the thread
A 2008 Vauxhall Vectra diesel exhibited symptoms such as reduced power, check engine light, smoke on acceleration, rough idle, high fuel consumption, jerking, and a hissing noise, suggesting a faulty EGR valve. An OBDII scan confirmed an EGR valve fault code, and the symptoms worsened when the engine was cold. The EGR valve was identified as the likely cause, and after replacement, all symptoms were resolved, restoring the vehicle's performance.
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4 comment(s)
simonsky7 (community.author)
Yes, the OBDII scanner gave an EGR valve fault code. And the symptoms are worse when the engine is cold. Does that still point to the EGR valve, or could it be the catalytic converter or something else in the exhaust recirculation system?
kurtmayer1
The EGR valve code and worse symptoms when cold make the EGR valve the likely cause. A bad catalytic converter could cause some of those issues, but focus on the EGR valve first. If a new EGR valve doesn't fix it, then check the catalytic converter. Given all the symptoms, and to protect your diesel particulate filter, I'd get a professional to look at it.
simonsky7 (community.author)
Took it to a mechanic, and they confirmed the EGR valve was faulty. Replaced it for 355€. All the symptoms are gone now, and it's running as expected. Thanks for the help.
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VAUXHALL
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VECTRA
kurtmayer1
That sounds like a bad EGR valve. The symptoms are pretty typical. Have you scanned for error codes? That would help. Does it behave differently when the engine is cold?