Help with codes please....
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Junior User
Joined: Nov 2010
Posts: 90
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From: Sandusky, Ohio
Help with codes please....
HI all,
Hey can anyone help with these codes? Here is what I downloaded on my odb2 scanner.
CEL has been on for a while. I erased and started over. Drove (cel came back on first day) for a while (about a week) then run scan. Here is what I found:
Year: 1996
Manufacturer: Ford
Make: Ford
Model: F150
Engine Type: L6, 4.9L (300 CID)
Transmission: Automatic
Trim Level: XL; Special; XLT; Eddie Bauer
Mileage: 184000
=== Stored Error Code(s) ===
Error Code: P0171
Possible Causes:
Error Code: P0443
Possible Causes:
Error Code: P0174
Possible Causes:
Freeze Frame Information:
1. DTC for which Freeze Frame was Stored - P0171.
2. Fuel System 1 Status - Closed Loop.
3. Fuel System 2 Status - Not Supported.
4. Calculated LOAD Value - 61.96 %.
5. Engine Coolant Temp - 188.60 °F.
6. Short Term Fuel Trim - Bank 1 - 8.59 %.
7. Long Term Fuel Trim - Bank 1 - 25.00 %.
8. Short Term Fuel Trim - Bank 2 - 0.78 %.
9. Long Term Fuel Trim - Bank 2 - 25.00 %.
10. Engine RPM - 1,729.50 Rpm.
11. Vehicle Speed Sensor - 50.33 Mph.
I know these can run into a bunch of problems or could be just one thing making it all happen.
Truck runs good drives good, however I dont want to run the gammet of spending countless dollars chasing the problem if I can spend once and have the problem fixed.
Any and all help is very much appreciated!!
Robb
Hey can anyone help with these codes? Here is what I downloaded on my odb2 scanner.
CEL has been on for a while. I erased and started over. Drove (cel came back on first day) for a while (about a week) then run scan. Here is what I found:
Year: 1996
Manufacturer: Ford
Make: Ford
Model: F150
Engine Type: L6, 4.9L (300 CID)
Transmission: Automatic
Trim Level: XL; Special; XLT; Eddie Bauer
Mileage: 184000
=== Stored Error Code(s) ===
Error Code: P0171
Possible Causes:
Error Code: P0443
Possible Causes:
Error Code: P0174
Possible Causes:
Freeze Frame Information:
1. DTC for which Freeze Frame was Stored - P0171.
2. Fuel System 1 Status - Closed Loop.
3. Fuel System 2 Status - Not Supported.
4. Calculated LOAD Value - 61.96 %.
5. Engine Coolant Temp - 188.60 °F.
6. Short Term Fuel Trim - Bank 1 - 8.59 %.
7. Long Term Fuel Trim - Bank 1 - 25.00 %.
8. Short Term Fuel Trim - Bank 2 - 0.78 %.
9. Long Term Fuel Trim - Bank 2 - 25.00 %.
10. Engine RPM - 1,729.50 Rpm.
11. Vehicle Speed Sensor - 50.33 Mph.
I know these can run into a bunch of problems or could be just one thing making it all happen.
Truck runs good drives good, however I dont want to run the gammet of spending countless dollars chasing the problem if I can spend once and have the problem fixed.
Any and all help is very much appreciated!!
Robb
Junior User
Joined: Feb 2012
Posts: 51
Likes: 0
From: Granbury Tx.
Fuel Injection Technical Library » How To Run a Self-Test This is a code place look at the bottom of page and it will give you links to codes hope this helps.
Moderator
Joined: Nov 2007
Posts: 22,415
Likes: 92
From: Denver Metro Area, CO
Fuel Injection Technical Library » How To Run a Self-Test This is a code place look at the bottom of page and it will give you links to codes hope this helps.
A Google of P0171 says the left bank is running too lean.
P0174 is the other bank.
P0443 is the canister purge valve circuit.
Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
P0171 and P0174 indicate the truck is running lean as noted before. Any vacuum leak or exhaust leak(s) before the O2 sensors can trigger either code. I suspect a vacuum leak problem, but thought I would toss in another common cause. Also add in low fuel pressure as another cause of a lean code.
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