I'm still working on resolving my two error codes:
P1423 and P1411.
My research on this forum is leading me to check the secondary air pump. Since I don't have the Bentley... can someone tell me if I am looking at the right part in the 2.7T engine (#1 in the picture)? Also.. what is #2 in the picture anyway?
If this pump needs to be replaced (and I know it's expensive), it looks pretty straight forward to get to, remove, and replace. Is there anything that I would need to look out for those of you who've done this job?
that's the pump, you'll have to take y-pipe off & be careful of the vacuum tubes
around the pump, I seperate the pump from the bracked, it's not necessary, but makes it easier as to not break any vacuum tubes nearby. You can jump power right to the pump to see if it runs. What I usually see is the t-fitting breaking on the vacuum supply to the combi-valves. It's buried under the black plastic intake pipe.
the solenoid meaning the change-over valve for the combi valves?
You'll want to remove the plastic intake pipe leading to the Y pipe, and you can loosen the Y pipe and lift it up slightly. buried down there will be the secondary air change over valve supplying vacuum to the combi valves to open them so the pump can blow air through. Try to trace the silicone vacuum hose from the passanger combi valve to the T fitting at the valve. There's a good chance the T fitting broke.
#1 is the SAI Pump, #2 is the Positive Crank Ventilation Valve
#2 allows gases that blow by the rings to re-enter the intake. They very rarely go bad. Just make sure it is connected securely onto the intake y-pipe until it "clicks". There is an O-ring inside to hel make the seal.