05 S80 P0442,P0496,P0497,P2407 + "Reduced Engine Performanc"

ppembe62 · Post by **ppembe62** » 27 Dec 2013, 17:36

Getting these codes after the warning message "reduced engine performance" message. The rpm's drop well below 1000. If I turn off & restart the engine it runs fine for an intermittent period of time.

I have noticed at least one vacuum line running under the intake manifold has an approx. 2" split along it's length.

I am preparing to replace all vacuum hoses and any other hose needed.

I would appreciate any ideas you all could offer.

Thank you.

Peter

ppembe62 · Post by **ppembe62** » 12 Jan 2014, 17:17

Does anyone have any ideas?

matt5112 · Post by **matt5112** » 21 Jan 2014, 21:35

Have you tried looking up what the codes mean in relation to late model Volvo?

For example, the P0442 is a small evap leak and it's typically the J hose on the canister in the back that is at fault. Eg: http://volvoforums.com/forum/volvo-s80- ... s80-61788/