P1131 code ford f150

P error code. Thread Tools. Hey guys I'm getting the p error on my xlt f 5, p1131 code ford f150. I know it's usually a vacuum leak on the pcv hosing, which I did have at the back and replaced as well as other softer joining sections 3 to be exact lolbut I'm still getting this error.

I have ford f 4. Had a new fuel pump the whole assembly … original equipment not aftermarket installed about 3 months ago mid-June and changed the fuel filter as well. Mostly I drive it only once per week … just long enough to get everything warmed up at least 20 minutes or so. So, since the fuel pump change I have only put about miles on it. Given that it idles and seems to run smoothly, would you say the O2 sensor is the likely culprit? Or should I investigate other possibilities first? Have you cleared the code once?

P1131 code ford f150

P at startup. Thread Tools. Likes: Received 9 Likes on 8 Posts. P during warmup. My '99 4. Code P is upstream bank 1 oxygen sensor too lean. The code will persist for a few weeks, then it will go away for a few weeks. Change in state seems to coincide with filling the tank with gas. I replaced the gas cap and am careful to fully seat it. Engine runs fine: no issues starting, smooth idle, MPG.

Newbie issue You see both an air leak and an excess in fuel can cause the same end result.

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Home » OBD Codes. Seeing the P code can cause your heart to sink, but it might not be as worrisome as you think. The P trouble code has a specific meaning, and it leads to a number of different symptoms, each of which I cover in this guide. I also look at the top causes and show you how to repair it. The P code indicates that the heated oxygen sensor contains a failure in the upstream flow. Therefore, Bank 1 is seen as running lean. P is a manufacturer-specific trouble code that is routinely found with several Ford models. A precise balance of air and fuel is required for the engine to function correctly. The P trouble code can cause many performance issues, but the main symptom will always be a check engine light warning you of the problem. You may also notice that the engine misfires.

P1131 code ford f150

Continuing to operate your vehicle with this issue is strongly discouraged, as it may exacerbate the problem and cause further damage to your vehicle. Well, this is not the whole scenario of P code Ford F Read further for the comprehensive solution to this issue. The P code is a trouble code that indicates that the vehicle oxygen sensor in bank 1 sensor 1 is sensing an abnormal flow of oxygen. This code might indicate that the oxygen sensor is not functioning properly, and is not providing accurate readings to the engine control module ECM. In the exhaust manifold on the passenger side of the engine, you will find bank 1 sensor 1.

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Fuel regulator diaphragm leaking fuel into the intake. If I clear the code. Likes: 2, As you suspect, another cause of P Lack of HO2 sensor switch, sensor indicates lean is a bad sensor i. Send a private message to djfllmn. Otherwise you would most likley have and DTC's accompanying. Since this is an obvious indication of a lean burning cylinder can I make the assumption my most likely problem is dirty fuel injectors on those cylinders? I told you someone needed to search for the issue because there are to many possible causes. Best you can do is go with air leak first and test the other possibilities and look at live data to see when you got the repair. Well you took exception to my help.

P is a diagnostic trouble code that applies to vehicles manufactured by Ford, including the F Trouble codes that start with P1XXX were reserved for manufacturers.

Am I supposed to hold his hand, give him a kiss and do the work to? The opposite of rich is lean. The time now is AM. Likes: Hope this helps. Leaking injector. Received 5, Likes on 4, Posts. I know it's usually a vacuum leak on the pcv hosing, which I did have at the back and replaced as well as other softer joining sections 3 to be exact lol , but I'm still getting this error. It is not telling you there is a lean condition from just the code. There is a TSB for leaking bolts or gaskets on the upper-to-lower intake manifold area that causes similar symptoms. Then you have graduated to being a true technician.