957 CTT Evap check valve location?
11-12-2015, 02:38 PM
#1
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957 CTT Evap check valve location?
I'm having a slight emissions leak CEL (P0442) and a lot of ppl here have said that it's either the gas cap or the EVAP check valve.
I just recently bought a brand new gas cap from the dealer, so I don't think that that's it, so I want to replace the EVAP check valve next.
A lot of people have said it's right at the front of the block and is easy to replace, but I wanted to be sure I got the right one since there's one called the check valve to the right of the throttle body and one called the purge valve to the left of the throttle body.
Can someone confirm which one is the correct one to replace?
I just recently bought a brand new gas cap from the dealer, so I don't think that that's it, so I want to replace the EVAP check valve next.
A lot of people have said it's right at the front of the block and is easy to replace, but I wanted to be sure I got the right one since there's one called the check valve to the right of the throttle body and one called the purge valve to the left of the throttle body.
Can someone confirm which one is the correct one to replace?
11-17-2015, 01:44 PM
#3
Drifting
Left One is Vapor Canister Purge Valve = P0442, P0455....
On the 957 it is located on the passenger side of the engine. Careful removing it from the rear...the brass coupling crushes easily.
08-16-2018, 02:48 PM
#5
Is this the same valve and location used on the naturally aspirated 957? I have the evap code also and the shop says it is the purge valve. Porsche wants over $200 for the part. A quick search at AutohausAZ turned up a purge valve for 2010 Cayenne, Toureg, Q7 but it says (on the web site) it's not compatible with 2008. And the price was like $15.