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OK. The most probable reason for this happening is " believe it or not " a FUEL PUMP that is in decline. You can go "nuts" changing oxygen sensors and mass Airflow meters 'and so on', but I have a very memorable experience with this P0174 problem. use a scanner and look at the long and short term fuel trim. you may observe a adjustment very close to [+25 ]. the fuel pump is controlled by a rear control module and when the fuel pump has degraded to some predetermined point there is no way to compensate. Check the fuel pressure but you know some pumps experience heat fatigue and will not decline in performance just when it is tested WITH no load on the engine. There is also the fact that a full tank of gas cools the fuel pump more than a "low fuel" tank
What else can I help you with?
How do you fix P1504 code on99 ford f150?
2000 ford lightning. P1540,po171.po174
What can you do to fix a PO174 code?
depending on what engine maker it is , likely an intake manifold or vacuum leak, ck that first
What is ford airbag code 32 and what is the fix?
how can a code 32 on a 2002 ford superduty be fixxed
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need help
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Start with replacing the thermostat.
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air bag bulb
What would you check to fix a P1633 code on a 2002 Ford Taurus?
replace coil
What is the fix for 2003 Lincoln LS OBD code P2100?
Trouble code P2100 means: Throttle Actuator Control Motor Circuit/Open
What does airbag fault code 48 on a 2002 Mazda 6 mean?
i have the same problem did you get the answer to fix it
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burn the car
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The code means there is no activity on bank one sensor three. So sensor three is either disconnected or not working.
How do turn off the check engine light on 2002 Honda accord?
Fix the problem then you can clear the code.
