TSB's

O2 caution during filter change

Cover the O2 sensor with a rag before removing the engine oil filter.
<p>Cover the O2 sensor with a rag before removing the engine oil filter.</p>

When removing the engine oil filter from a 2002-2007 Suzuki Aerio, it is possible to contaminate the O2 sensor, causing DTCs P0137 (O2 sensor circuit low voltage/high voltage, sensor 2, Bank 1) (EVAP leak check model) and/or P0420 (catalyst system efficiency below threshold Bank 1). The oil can easily drip onto the downstream O2 sensor, resulting in internal contamination.

To prevent contamination, use a folded shop towel to cover the O2 sensor. Allow the engine to cool for a few minutes before servicing the engine oil and filter.

Post a comment
 

Comments (0)

 

Post a Comment

Submit
Subscribe Today

Subscribe to Auto Service Professional

Sign up for a FREE subscription to Auto Service Professional magazine

Subscribe