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1998 BMW 528



Welcome to our question and answer forum. Our Technicians and members answer over 10,000 free and donated auto repair questions every month. Asking a question is free of charge, just sign up to our forum. However if you elect to donate a small sum we will guarantee an answer from one of our 2Carpros.com certified technicians. Due to the nature of car repair problems it sometimes requires some dialog between our technicians and you to get your problem solved. 100% of the donation is awarded to the technicians helping you, questions with donations are answered as promptly as possible . If you are unsatisfied with our answer we will gladly return your donation.

Posted at Thu Jul 24, 2008 6:42 am
By backbone555, New to the forum
Give Feedback | Votes: 0
   
1998 BMW 528 Automatic
----------------------------------------------------------------
i scanned my car and i have two codes to come up
on my car and i just want to know if you guys
can help me with what these codes may be
the first one is P1423 manufacurer control auxiliary emission control and the other one is P1421 emission controls auxiliary would you guys please help me with these codes
 
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Posted at Fri Jul 25, 2008 9:33 pm
By Dr. Hagerty, Moderator
Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6Reputation: 407.6 (408) Give Feedback | Votes: 9
   
They are faults for the secondary air injection system. Check the vacuum hose at the air injection valve.
 
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