Question about 2000 Ford Windstar

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Hey my windstar is dropping idle real low, and showing a lean mix bank1 and bank 2 code i have replaced both o2 sensors. can anyone give me another insight on still runs great a speed a little valve clatter and a low idle though.

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Check for leaks at plem gasket and manafold gasket leaks
this happens on a lot of these when the mileage gets up above a 100,000 spray carb cleaner around the gaskets

Posted on May 09, 2010

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Check the fuel pressure,and change the fuel filter,it would be a good idea to have the oil pressure checked also.

Posted on May 04, 2010


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Keeps throwing up trouble codes p1506,p1151,p0302,p0171

Definition of Diagnostic Trouble Code P1506 Audi: Closed Throttle Position Switch Does Not Open/Short to Ground BMW: Idle-Speed Control Valve Opening Solenoid Control Circuit Signal High Ford: Idle Air Control Overspeed Error (see P0507) Jaguar: Idle Air Control System RPM Lower Than Expected - B Bank Kia: IAC Valve Opening Coil Voltage High Lincoln: Idle Air Control Overspeed Error (see P0507) Mazda: Idle Air Control Overspeed Error Mercury: Idle Air Control Overspeed Error (see P0507) Porsche: Throttle Jacking Unit Lower Mechanical Stop, Signal Implausible Volkswagen: Closed Throttle Position Switch Does Not Open/Short to Ground Volvo: IAC Valve Opening Signal
Definition of Diagnostic Trouble Code P1151 Audi: Bank1, Long Term Fuel Trim, Range 1 Leanness Lower Limit Exceeded BMW: Oxygen Sensor Heater Circuit Signal Intermittent (Bank 2 Sensor 1) Ford: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Jaguar: Lack of H02S-21 switch, sensor indicates lean Land Rover: Lambda control limit bank 2.Implausible signal/condition Lincoln: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Mazda: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Mercury: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Subaru: HO2S-12 Heater Circuit High Input Toyota: Coolant Path Clog Up for Coolant Heat Storage System Volkswagen: Bank1, Long Term Fuel Trim, Range 1 Leanness Lower Limit Exceeded
Definition of Diagnostic Trouble Code P0302 Category: Powertrain Definition: Cylinder 2 Misfire DetectedNote: This definition of P0302 is applied to all manufacturers
Definition of Diagnostic Trouble Code P0171 Category: Powertrain Definition: System Too Lean Bank 1Note: This definition of P0171 is applied to all manufacturers

Jun 17, 2015 | Cars & Trucks

1 Answer

Mazda3,2005 trouble code p2177 system too lean off idle bank1

Check for correct fuel pressure.
If fuel pressure is low could be bad fuel filter, fuel regulator or pump.
If fuel pressure is correct could be bad MAF sensor, injectors, O2 sensor or vacuum leak on inlet manifold.

Apr 13, 2015 | 2005 Mazda MAZDA3

2 Answers

What does code #P0171 mean for a 96 Villager?

"System too lean (bank1)" O2 sensor is giving this error code. There are two O2 sensors one near the engine and one downstream. It could just be an anomaly or the sensor could be going bad. (Bank 1) is the O2 sensor closest to the engine. I had a PT cruiser that constantly gave this code even after replacing both sensors. If the car seems to run fine, clear the code and see if it reappears immediately. If it does then the O2 sensor is probably bad. If it doesn't come back then it was probably an anomaly. I would get this code every 2 or three months on the PT cruiser and would just clear the code to turn the check engine light off as the car ran fine.

Mar 19, 2015 | Cars & Trucks

1 Answer

Code number for o2 sensor voltage low

Forget to write it down?

Generic or Manufacturer?

There are 41 Generic O2 Codes

PO 131--bank 1 sensor 1
PO 137--bank1 sensor 2
PO 143--bank1 sensor 3
PO 151--bank2 sensor 1
PO 157--bank1 sensor2
PO 163--bank2 sensor 3

Nov 23, 2012 | 2009 Toyota RAV4

1 Answer

Gives me a code po171 then when i kill it it want starte til it cools

This is a Code that the system is too lean on Bank1. If you have a bad intake gasket leak on Bank1 it can generate this code. There can also be an inaccurate O2 sensor reading from a Bank1 sensor saying the fuel mix is too rich and then causing the ECM to lean out the mix. As long as the bad O2 sensor operates within its "range" no O2 code will be generated.

For the intake leak, while the engine is running. take a spray water bottle and spray along the intake gasket. Any hesitation or stalling will reveal the air leak.

Since it takes a cooldown to rectify the problem, Temperature sensors could be bad and forcing a lean condition. The O2 sensors are also affected by heat.

Sep 20, 2012 | 2000 Jeep Grand Cherokee

1 Answer

What can cause a 2005 Hyundai Sante Fe check engine light to come on and get all these codes: p0134 - o2 sensor circuit no activity detected (bank 1 sensor 1), p0151 -oxygen sensor circuit,low voltage...

i would check ur fuses that supply voltage to ur o2 sensors, their in the fuse box and usually r labeled o2 sensr. sounds like the o2 sensrs dont have power

Apr 09, 2011 | Hyundai Santa Fe Cars & Trucks

2 Answers

Check engine light on my 01 windstar when scaned the codes were po171 and po174 bank 1 and bank 2 too lean

thats a lean code which mean there is a vaccum leak or fuel flow is low. can be the fuel filter, most likely it is a vaccum leak, spray with carb spray around the intake and the hoses and see if the idle changes

Mar 23, 2011 | 2001 Ford Windstar

2 Answers

My 1998 ford winstar is showing check engine light and the code is p0171 what that means

Check for a small hole in the right angle rubber hoses between the PCV valve and the motor. A hold in the hoses will give a false alarm indicating "lean bank1" and "lean bank2" on Fords and Lincolns and once you replace those faulty hoses or at least tape them up you can reset the codes at the parts store and it should not come back until you have holes in the hoses again. you can also keep driving the car and after numerous "successful trips" with no more codes, the engine light will eventually go off if you have corrected the problem.

Aug 02, 2010 | 1998 Ford Windstar

3 Answers

02 rendezvous 3.4L missing randomly on all

You need a live data scanner to look at this when the problem occurs in real time, I could guess but that would waste your money and my time.

Aug 22, 2017 | 2002 Buick Rendezvous

2 Answers

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
Sensor 1
The 2 front 02 sensors are located on the front of
the exhaust manifold.
Should solve problem and increase gas mileage.

Apr 01, 2009 | 2003 Ford Expedition

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