====== Troubleshooting engine issues ======

===== diagnostics =====
{{ :troubleshooting:b011nsx27a.png?400|}}Vehicles 1996 and newer have an OBD-II port that can be used to read/reset codes and read outputs from sensors .  The port is usually under the dash.  

OBD-II scanners have gotten progressively cheaper and are [[http://amzn.to/2fx70FI|now available in bluetooth/wifi models]] that communicate with and display on your smartphone and tablet.   They are generally less than $20.

Once you have the CEL code you can google it or check it against published lists of codes for your vehicle's make:
  * [[https://www.obd-codes.com/trouble_codes/|generic codes]]
  * [[https://www.obd-codes.com/trouble_codes/dodge/|Chrysler Corp codes]]
  * [[https://www.obd-codes.com/trouble_codes/chevrolet/|Chevrolet codes]]
  * [[https://www.obd-codes.com/trouble_codes/ford/|Ford codes]]
  * [[https://www.obd-codes.com/trouble_codes/nissan/|Nissan codes]]
  * [[https://www.obd-codes.com/trouble_codes/toyota/|Toyota codes]]

In forums you may see the acronyms DTC (Diagnostic Trouble Code) or CEL (Check Engine Light) referring to codes readable by a OBD-II scanner.