AIR system inoperative - Air Injection... I can't seem to get rid of this code! Codes 44 and 94 usually appear together, but what I've read on this forum indicates a lone code 94 has something to do with the air diverter valve. I've checked the vacuum lines and they are good. The solenoid seems to be working normally as the vacuum line attached to the diverter valve has vacuum when the engine is cold, and no vacuum when the engine is warm. I disconnected the two hoses after the diverter and tested the valve by applying vacuum and felt air from the smog pump divert from one hose to another. Some people have said that a code 94 could be because of a clogged air tube that runs from the diverter to the heads. Others think that an O2 could be bad, although my O2's only have about 30k miles on them so I doubt that they went bad already, but who knows.
Both my KOEO test along with my cylinder balance test passed. I don't have any other KOEO codes. If anyone has any other ideas or clarification on code 94 please post!
Both my KOEO test along with my cylinder balance test passed. I don't have any other KOEO codes. If anyone has any other ideas or clarification on code 94 please post!