Quote:
Originally Posted by redeye280z
I got these 2 codes after I change my AOS and cleaned out the air intake. I know these codes mean I probably have a vacuum leak. I can actually hear some hissing so I started checking all the hose and I found that this line leaks when I move it a little. Can anyone tell me what this is exactly and how hard is it to replace. It's the hose circled in red.  |
That hose supplys vacuum to the power brake booster. The connecter at the intake manifold has a nylon "C" shaped shim to lock it in place, make sure it is doing it's job. There is also a small O-ring seal at the connection secured to the intake by 2 screws.
Your codes indicate your SAI is not effective, so if you hear the pump operating after a cold start it is not effectively leaning the AFR seen by the secondary O2 sensors.
Check the link posted by Timco.