Tuesday, May 1, 2012

OBD code PO441, PO442 & PO446?

The Codes are related to Emission systems.

The primary code here is the P0442 code. This means there is a small leak in the evaporative emission system. This can be anything from a loose gas cap to corrosion at the gas cap seal and filler neck. The other two codes will normally set by default when the system runs itself diagnostic test. Small leaks are very difficult to diagnose and locate unless you have a smoke machine with dye added. My recommendation would be to may make sure that the gas cap is good, clear the codes and see if the problem comes back.

This details will help.
Thanks.


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