P0171,0174,2195,2197

[WileE7]

I changed the spark plugs on my 2004 ford expedition (123000 miles) which was a lot easier than i thought. I noticed the tube connecting to the PVC valve was disconnected I replaced the hose with a different hose but the new hose was straight and bend was tight. After the second day of driving the check engine light came on I had the codes read and i got P0171 and P0174 I cleared the codes and replaced the hose with a longer one that curved easier. now I have codes p2195 and p2197 and my car idles at about 500 rpms and sounds like the engine is going to die. Any suggestions on where I should start. 

2004 Expedition XLT

 

[miesk5]

yo WILE,

In P2195 and P2197 either a engine vacuum leak (check @ PCV hose again & follow the tube, hose, to the intake manifold & check for a tear or a soft spot on the hose. If the PCV hose is OK then ON A COLD ENGINE ONLY spray the intake manifold area with  carb cleaner - if the engine speeds up in one area, that will be where the vacuum leak is located.  Check other vac. op. items incl brake booster vac hose, etc.

elbow @ Ford dealer is part #6A614A at pcv valve and the other right to middle on the top of engine

Helm Incorporated provides FORD factory authorized technical publications, such as;

http://www.helminc.com/helm/Result.asp?Style=helm&Mfg=FMC&Make=FRD&Model=EXPE&Year=2004&Category=&Keyword=&Module=&selected%5Fmedia=

2004 Expedition Owner Manual And Maintenance Schedule   Price: $30.00  In Stock   Pkg Qty: 1   (English, Paper, 4L1J19A321FC)   Click here for detail    
2004 Ford Expedition Owner Manual Portfolio   Price: $40.00  In Stock   Pkg Qty: 1   (English, Paper, 4L1J19G219AA)   Click here for detail    
2004 Expedition and Navigator Wiring Diagram   Price: $79.00  In Stock   Pkg Qty: 1   (English, Paper, FCS1288604)   Click here for detail    
2004 Expedition and Navigator Workshop Manual   Price: $180.00  In Stock   Pkg Qty: 1   (English, Paper, FCS1256104)   Click here for detail    
2004 Ford Maintenance Guide   Price: $10.00  In Stock   Pkg Qty: 1   (English, Paper, 4L3J19T200AD)   Click here for detail    
2004 Powertrain Control Emission Diagnosis Manual Gas Only   Price: $145.00  In Stock   Pkg Qty: 1   (English, Paper, FCS1210604A)   Click here for detail    
Front Disc Brake Job Aid (Package of 5)   Price: $15.00  In Stock   Pkg Qty: 5   (English, Paper, FCS13947AID)   Click here for detail    
2004 Expedition Online Service Information - 72 Hours   Price: $10.95  Subscription available to view online after purchase and member sign in.   Pkg Qty: 1   (English, Online Service Information, FCS2004ENWEBD)   Click here for detail    
2004 Expedition Online Service Information - Month   Price: $19.95  Subscription available to view online after purchase and member sign in.   Pkg Qty: 1   (English, Online Service Information, FCS2004ENWEBM)   Click here for detail    
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Here is info from ARRC (I'd look @ vac leak first)

P2195 Description: Oxygen Sensor Signal Biased/Stuck Lean - Bank 1, Sensor 1 Probable Causes:

1. Sensor or solenoid faulty
2. Connector terminal contact is damaged or corroded
3. Wire harness - Check harness for correct voltage, open, short to ground or short to voltage
4. Update control unit software - Check for the latest control unit update
5. Powertrain or Engine Control Module faulty
6. HO2S sensor contamination/damaged

---------------------------

DTC Code: P2197 Description: Oxygen Sensor Signal Biased/Stuck Lean - Bank 2, Sensor 1 Probable Causes:

1. Sensor or solenoid faulty
2. Connector terminal contact is damaged or corroded
3. Wire harness - Check harness for correct voltage, open, short to ground or short to voltage
4. Update control unit software - Check for the latest control unit update
5. Powertrain or Engine Control Module faulty
6. HO2S sensor contamination/damaged

======

SECTION 303-14: Electronic Engine Controls
2004 Expedition/Navigator Workshop Manual
REMOVAL AND INSTALLATION
Procedure revision date: 06/23/2003

Heated Oxygen Sensor (HO2S)      

Special Tool(s)

Socket, Exhaust Gas Oxygen Sensor
303-476 (T94P-9472-A)
Removal and Installation

1. Disconnect the battery ground cable. For additional information, refer to Section 414-01.

1. Raise and support the vehicle. For additional information, refer to Section 100-02.

1. Disconnect the heated oxygen sensor (HO2S) electrical connector.

1. Using the special tool, remove the HO2S.

1. To install, reverse the removal procedure.