answersLogoWhite

0


Best Answer
SymptomsYou will more than likely not notice any drivability problems, although there may be symptoms such as a lack of power, detonation (spark knock), and/or a hesitation/surge on acceleration. CausesA code P0171 may mean that one or more of the following has happened:
  • The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
  • There could be a vacuum leak downstream of the MAF sensor.
Possible SolutionsPossible solutions include:
  • In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
  • Inspect all vacuum and PCV hoses, replace if necessary
  • Check for a dirty fuel filter and proper fuel pressure

I had the same error codes. Found out that I had a cracked head. Remove radiator cap start engine. Check for bubbles in radiator.

User Avatar

Wiki User

โˆ™ 2011-02-24 21:18:52
This answer is:
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
User Avatar

Add your answer:

Earn +20 pts
Q: What should you do if you have trouble codes p0171 and p0174 for your 2000 Ford Ranger XLT 4.0L?
Write your answer...
Submit
Related questions

How do you fix trouble code P0171 on a 1997 ford ranger?

Trouble code P0171 means: Fuel System Too Lean (Cylinder Bank 1)


Isuzi rodeo 2001 codes p0171?

Trouble code P0171 means: System Too Lean (Bank 1)


Causes of P0171 and p0174 98 ranger?

Trouble code P0174 means: Fuel System Too Lean (Cylinder Bank 2) Trouble code P0171 means: Fuel System Too Lean (Cylinder Bank 1)


04 GMC Sierra Codes p0171 and p0174?

Trouble code P0171 means: Fuel Trim System Lean (Bank 1) Trouble code P0174 means: Fuel Trim System Lean (Bank 2)


What are diagnostic codes P0171 and P0174 for a 2001 Cadillac?

Trouble code P0171 means: Fuel Trim System Lean (Bank 1) Trouble code P0174 means: Fuel Trim System Lean (Bank 2)


Trouble codes P0171 and P0174 on 1996 Ford windstar 3.8?

Trouble code P0171 means: Fuel System Too Lean (Cylinder Bank 1) Trouble code P0174 means: Fuel System Too Lean (Cylinder Bank 2)


What causes trouble code P0171 on a 2003 ford ranger 4.0?

P0171 is System Too Lean (Bank 1), which means that the oxygen sensor detected an excessively lean air fuel mixture.


What do these codes mean diagnostic code P0171 and P0300 for Chevy truck 2004?

Trouble code P0171 means: Fuel Trim System Lean (Bank 1) Trouble code P0300 means: Multiple Cylinder Misfire Detected


What is a P0171 trouble code for a Nissan Sentra?

Trouble code P0171 means System too lean (bank 1)


What does the diagnostic trouble code p0171 mean for a 2005 impala mean?

Trouble code P0171 means:System too lean (Bank 1)


What do codes p0171 and p0174 mean?

p0171 andpo174 mean that you're car is running lean


What do trouble codes P0172 and P0171 mean on a 2002 ford windstar?

Get a can of mass air flow sensor cleaner and clean the maf sensor


What is OBD code P0171?

Trouble code P0171 means: System too lean (Bank 1)


What is a P0171 on a Mazda protegรฉ 1999?

Trouble code P0171 means:System too lean (Bank 1)


What does code p0171 for on a 99 Windstar?

Trouble code P0171 means:System too lean (Bank 1)


Isuzu Rodeo dtc p0171?

Trouble code P0171 means: System Too Lean (Bank 1)


What is does code p0171 on a 1996 jetta?

Trouble code P0171 means: System Too Lean (Bank 1)


1999 VW Beetle p0171?

Trouble code P0171 means: System Too Lean (Bank 1)


Jaguar error code P0171?

Trouble code P0171 means: Bank 1 Combustion Too Lean


Code p0171 dodge neon?

Trouble code P0171 means: Fuel System Lean (Bank 1)


P0171 1996 Honda Civic?

Trouble code P0171 means: System Too Lean (Bank 1)


Where is p0171 on Impala 2001?

Trouble code P0171 means: Fuel Trim System Lean (Bank 1)


2000 Kia sephia P0171?

Trouble code P0171 means: System Too Lean (Bank 1)


What is fault code p0171 in Chevy Impala?

Trouble code P0171 means:System too lean (Bank 1)


What does code p0171 on a 2000 f150 mean?

Trouble code P0171 means:System too lean (Bank 1)