Cleaning Audi Secondary Air Port Via Combi-Valve Area. Run the test on the n112. Inspect joint faces for signs fo exhaust leaks, cracks or any defect that would make exhaust manifold unfit for use.
About press copyright contact us creators advertise developers terms privacy policy & safety how youtube works test new features press copyright contact us creators. The job took about 6 hours, but this was done with the car on a. If equipped with secondary air injection, disconnect the secondary air injection check valve tube (9b480).
The secondary air pump can be activated via scan tools in basic settings group 077. Continue going back and forth through the whole port until only clean water drains out of the cylinder head. V6's are having secondary air carbon.
What you should probably focus on is if the valve is even opening properly. If equipped with secondary air injection, disconnect the secondary air injection check valve tube (9b480). Remove attaching bolts and right exhaust manifold (9430).
Insert special main port cleaning hose (the hose without the scale) two inches into the engine adaptor. Intake manifold removal isn't required for secondary air cleaning. Do the same with the other cylinder head.
Then, pull out the air hose and store it safely with all. The check valve, or combination valve, also plays a role in secondary air injection. Turn the pressure washer on.
Run the test on the n112. With the secondary air injection system removed it is much easier to remove both valve covers if you need to do the gaskets and it gives a little more room overall in the engine compartment for something that only really works on cold starts and only for about the first minute or more. Always check for power at the air pump as well.
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