SYSTEM TO RICH BANK1, BANK 2---- HOW DO I TROUBLESHOOT THESE CODES ,, WHAT PROBLEMS SHOULD I LOOK 4, WHAT PARTS CAN BE DEFECTIVE
Sep 25, 2009 at 6:29 PM
1998 Lincoln Town Car CODE P0172,PO175
1998 LINCOLN TOWN CAR
JBLU069
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Hi there jblu069 and TY for the donation this is what keeps the site going
P0172/P0175 system too rich:
Possible causes include a bad O2 sensor, excessive fuel pressure (bad fuel pressure regulator or plugged return line), leaky fuel injectors, dirty air filter or restricted air inlet, or a defective coolant sensor that prevents the engine management system from going into closed loop mode.
P0172/P0175 system too rich:
Possible causes include a bad O2 sensor, excessive fuel pressure (bad fuel pressure regulator or plugged return line), leaky fuel injectors, dirty air filter or restricted air inlet, or a defective coolant sensor that prevents the engine management system from going into closed loop mode.
Sep 25, 2009 at 6:38 PM