Thread: 1994 E420 Help
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  #3  
Old 09-13-2007, 11:29 PM
deanyel deanyel is offline
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Join Date: Aug 2003
Location: Phoenix
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Quote:
Originally Posted by juribe2 View Post
Code 4: "Air injection system faulty hot film mass air flow sensor with hot wire"
That's the code for an E320, not for an E420. For a 420 it's simply "air injection system faulty" - has nothing to do with the air mass sensor. It's telling you to check the LH-SFI / pin 4 for more codes.
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