Question about 2003 Ford Windstar

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Code P0171 What's the solution to repairing?

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I have given you the causes that will need checking Have a dealer or specialist mechanic do the system checkd

Posted on May 05, 2013


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Im getting P0171 code- lean .

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Jan 27, 2016 | Cars & Trucks

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Codes po303, po171, po137. po420

2000 Toyota Corolla, P0171 & P0420 codes - YouTube

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Dec 02, 2015 | 2005 Toyota Corolla

1 Answer

2005 aviator has codes p0300 andpo316,p0106,p0171,p0174,p2195.what does it need

Needs to go to a repair shop, to be road tested with scan tool,
& the codes properly diagnosed,component tested & the vehicle
repaired as required

You can Google your codes

Type: OBD & the code


Jul 21, 2014 | 2005 Lincoln Aviator

1 Answer

P0171 code after installing car amp

uninstall the amp as you plugged into a circuit that is incorrect and is affecting the power supply to ---fuel pump---AIR system---MAF/VAF sensor--

Dec 26, 2013 | 2008 Chevrolet Trailblazer

1 Answer

P0171 p0172

Here's code PO171.Here's code P0172.

May 08, 2013 | Ford Explorer Cars & Trucks

1 Answer

I got p0171 code

Basic oxygen sensor code

Google it & read up

Sensor may be okey & you have
a vacuum leak

The vehicle needs to be professionally
tested, before any parts even come into
play, if even necessary

Mar 05, 2013 | 1998 Mercury Mountaineer

2 Answers

97 grand marquis code P0171 bank left code with check engine light, what does that mean? also, went to start car today, turns over but no fire on the plugs at all. could this result from MAF sensor?

The MAF Sensor measures air flow into the engine
& is common to both banks or sides of the engine,so
when looking at fuel trim data you look at both banks
& remember that the maf is common to both

Your 171 is lean oxygen sensor code for bank #1,so either
a failed sensor,a slow sensor because you failed to change at
100,000 miles or a vacuum leak

A leaking injector will cause a rich condition & that report from the
O2 Sensor will cause the computer to drive fuel trim or pulse lean
as you have. So you need to do some testing & keep your thinking
cap on

Fuses never cause or fix any problems
They only open a circuit if it has too much current
flow & you don't replace a fuse, you go to wiring diagrams
to see what is on that circuit that would cause a fuse to fail
& resolve that issue

If you have no spark & no fuel injector pulse, then possibly a
crank sensor

I suggest you leave all the troubleshooting to a repair shop

Jan 30, 2013 | Mercury Grand Marquis Cars & Trucks

1 Answer

Ford Taurus Engine Light is: P0171 & P0174. I am thinking a MAF Sensor

Could be a problem with the MAF sensor but if it is you should have a code for that too.
Other causes include low fuel pressure, and a vac leak or air leak in the intake hose to the MAF.
The codes mean the ECM can not make the injectors rich enough to make the O2 sensors switch back and forth.

Jul 29, 2012 | Ford Cars & Trucks

2 Answers

My 05 zx4 Check engine light is on for one day, off the second day, then on for two days, and now is off. Auto zone read code P0171. Really needs help !

Thats called a lean condition.. Need to check for vacuum leaks Check all your vacuum hoses and your duct work on your air filter assembley

Sep 09, 2011 | 2005 Ford Focus

1 Answer

Can you tell me about codes P2104 & P2112

I'm not too sure you have the correct code - see below for explanation.
Also there is a possibility you have a manufacturer specific code - Call parts dept at your local ford dealer for more.

best regards

OBD-II codes consist of a number of parts. Here is a sample OBD2 code:

Here is a breakdown of what each digit of the code means:
First Character - System The first character identifies identifies the system related to the trouble code.

  • P = Powertrain
  • B = Body
  • C = Chassis
  • U = Undefined
Second Digit - Code Type The second digit identifies whether the code is a generic code (same on all OBD-II equpped vehicles), or a manufacturer specific code.
  • 0 = Generic (this is the digit zero -- not the letter "O")
  • 1 = Enhanced (manufacturer specific)
Third Digit - Sub-System The third digit denotes the type of sub-system that pertains to the code
  • 1 = Emission Management (Fuel or Air)
  • 2 = Injector Circuit (Fuel or Air)
  • 3 = Ignition or Misfire
  • 4 = Emission Control
  • 5 = Vehicle Speed & Idle Control
  • 6 = Computer & Output Circuit
  • 7 = Transmission
  • 8 = Transmission
  • 9 = SAE Reserved
  • 0 = SAE Reserved
Fourth and Fifth Digits These digits, along with the others, are variable, and relate to a particular problem. For example,a P0171 code means P0171 - System Too Lean (Bank 1).

Aug 18, 2011 | 2005 Ford Expedition

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