Question about 2006 Ford Fusion
First code P0771 is shift solenoid E is stuck or has a performance problem.Code P0128 could be low coolant,leaking or stuck open thermostat,faulty coolant fan (running to much) or faulty coolant temperature sensor.Code P0171 fuel system to lean usally its a dirty mas air flow sensor or a weak fuel pump,fuel filter or fuel pressure regulator. Code P2195 is oxygen sensor stuck lean bank1 sensor 1.I would check for low fuel pressure causing the lean condition or faulty injectors (clogged).Also i would replace the coolant temperature sensor.
Posted on Oct 25, 2012
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Posted on Jan 02, 2017
SOURCE: 4 codes P0171,P0174,P2195,P2197
171 system too lean
174 system too lean
2195 - 02 ozygen sensor signal stuck lean Bank1 Sensor 1
2197- 02 ozygen sensor signal stuck lean Bank 2
The 2 front 02 sensors are located on the front of
the exhaust manifold.
Should solve problem and increase gas mileage.
Posted on Apr 01, 2009
Very common concern with the Explorer, Explorer Sport Trac and Ranger with the 4.0l SOHC engine! The upper and lower intake manifold gaskets fail, causing vacuum leaks..It can be Extremely difficult to detect these leaks, because they only leak intermittently (usually in the AM after a cold soak)... As the engine warms up they seal back up! Sometimes the vehicle will idle rough, surge or stall after initial start up, then the symptoms will clear after it gets to operating temperature... Usually there will be no driveability symptoms at all, except the engine light coming on and setting lean codes.. The gaskets have been redesigned to correct this concern..
Bill Andrade Ford Master Technician/ASE Master Technician
Posted on Sep 22, 2009
Sounds to me like you have an intake gasket or a vac line leaking. Get a can of brake cleaner or starting fluid (brake cleaner is preferred) and spray it around the engine with it running at idle and listen for the engine to rev up. if you spray is near the intake and it revs up, time for new gaskets. If you spray it away from the intake, near a line or something, and it revs, start looking around there for a broken line. if you fined one, it can be easily repaired with a 2 inch section of rubber tubing about the same diameter. just slip the line into the tubing and it should work just fine.
Posted on Nov 06, 2009
There could be many issues. These codes read your engine is running too lean. Check : all your vacuum hoses for leaks, PCV valve and hose, MAF sensor. This may require an experienced technician to figure this out. Hopefully I help'd!!
Posted on Apr 05, 2010
Sounds Like your o/2 is bad, are you burning e-8, try adding some injector cleaner/seafoam, and put a tank of preimu gas in then reset the code.
Posted on Jun 27, 2010
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