Question about Ford Windstar

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Ford windstar codes po171 and po174 bank 1 and bank2 system lean had intake gaskets repace same light comes back on

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  • Anonymous May 01, 2009

    I have the codes p0171 and p0174 and can't pass emmissions.

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Try cleaning the MAF. Here is more info on the codes:
http://www.aa1car.com/library/ford_lean_codes.htm

Posted on Apr 14, 2009

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Were is bank one location on ford windstar 3.8l 2003

Posted on Mar 08, 2013

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02 ford windstar cel on code po171 po174 lean mixture both banks how to slove


Recommend check for a vacuum leak especially at the back of intake where all the vacuum hoses connect. If all the hose seem good then you will need to replace the intake plenum gaskets. Common problem on the Ford 3.8 liter engine.

Nov 07, 2014 | Ford Windstar Cars & Trucks

1 Answer

4 Codes in computer


code p0128 indicates a mechanical fault ( could be the thermostat stuck open)
code p0174 -system too lean -bank2 ===causes --intake /exhaust leak--fuel pressure/pump--injectors--AIR system--hose connection/s
code po171 refers to system too lean bank 1 same as po174 with the HO2S sensor being the culprit. As to all being related . only by way of the o2 sensors
code p0442 is not connected to the first 3 as it is in a different section of the fuel system

Apr 09, 2014 | 2003 Saturn VUE

1 Answer

Po171 po174 code


Lean bank 1 and bank 2 , and throttle actuator system fault. Check reason for lean codes 1st, vacuum leak(s), air inlet boot and hoses, or low fuel pressure / clogged filter. Repair as needed then clear codes and recheck .

Jan 09, 2014 | Cars & Trucks

1 Answer

Generic code PO171 system 2 lean bank 1 generic


This can be caused by a faulty mass air flow sensor

Jul 06, 2010 | 1999 Ford Taurus

2 Answers

2001 Ford Windstar, check engine light has been on for a while, but started flashing last night. It ran out of oil in 1 month's time. Brand new transmission 1 month ago, they told us that it had lean...


if the light is flashing it most like hasly some sort of misfire or converter failure, p0171 and p0174 is lean bank 1 and 2, replace you upper and lower plenum gaskets, while they have they off have they replace your ignition coil, plugs and wires, windstars are known for 2 things, lean codes,(plenum gaskets) misfire(bad ignition coil)

Jul 09, 2009 | 2001 Ford Windstar

1 Answer

Check engine light keeps coming up with same OBD-II codes


if they did not replace the front valve cover with a new updated one when they did the intake the code will come back.there is a tech service bulletin about this . your mass air flow sensor can be cleaned but would recommend a shop do this.

Feb 01, 2009 | 1999 Ford Windstar

1 Answer

1995 Windstar OBD II showing codes PO340, PO171, and PO174


Hello;
With those codes, the first place I would check is the fuel pressure. Also check the fuel filter and replace it if you haven't already. Then clear codes and recheck. Even if your fuel pressure is with in range it still may not push enough fuel to operate your vehicle.

Jan 15, 2009 | 1995 Ford Windstar

2 Answers

1995 Ford Windstar LX 3.5L Error Codes?


  1. P0171-bank 1 lean, usually oxygen sensor
  2. P0174-bank 2 lean, usually oxygen sensor
  3. PO402-EGR ins. flow, Clean EGR exhaust tubes and replace sensor should fix this problem

Dec 31, 2008 | 1995 Ford Windstar

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