P1131 code ford f150

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.

P error code. Thread Tools. Hey guys I'm getting the p error on my xlt f 5. 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. 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? Yeah yeah I know I'd clean them all lol.

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. The CEL comes on 5 minutes after I start the engine. P is the only code. If I clear the code.

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While this may seem harmless at first, keep it hanging for long enough, leading to part damages and decreased fuel economy. The P Ford code is linked to the oxygen sensor and signals the engine is running on a lean or rich fuel mixture. This article will discuss everything about the P Ford code, from what it means to diagnosis and fixes. Error Code P is displayed when sensor 1 or the oxygen sensor bank 1 does not switch enough to lean. The heated oxygen sensor voltage is below 0.

P1131 code ford f150

The error code P is displayed by getting feedback from the Lambda or the oxygen sensor. The Lambda sensor is responsible for detecting the amount of oxygen in the exhaust gases. Based on that, the PCM Powertrain Control Module manipulates whether the engine is running on a lean or rich fuel mixture. A lean running condition of the engine happens when the engine runs on less fuel or too much air , ultimately resulting in the error code P on Ford vehicles. An engine running on a lean mixture, may lead to sluggish acceleration and reduced fuel economy. Thus it becomes crucial to understand the P on Ford Vehicles and ways to resolve this error code. Read more: Ford vs. By estimating the O2 amount, the PCM assesses whether the engine is running on a rich or lean fuel mixture.

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The O2 sensor can also be checked by a real time scan tool. If I clear the code. Engine still runs a tad rough and wants to shut down at intersections and all my codes are gone but P P is the only code. Received 87 Likes on 70 Posts. All times are GMT Fuel pressure too high. If the code returns after a clearing, you might just roll the dice and replace the bank 1 precat HO2 sensor. Thermostat too cold or stuck partially open causing the same condition as D. I replaced the gas cap and am careful to fully seat it.

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.

Originally Posted by Bluegrass 7. The Ox sensor is no longer able to 'switch' when the table is so far out of limits. The time now is AM. Best confirmed with a Scanner looking at live data from the sensor in question and compaired to the other side. Then you have graduated to being a true technician. Thread Tools. Received 4, Likes on 2, Posts. Rod-Knox September 29, , pm 2. The CEL comes on 5 minutes after I start the engine. If that is not it then vacuum and injector testing. Bluegrass 7.