What Codes Will This Page Cover?
Here are the codes you’ll learn about on this page:
- P1153 Diagnostic Code – Bank 2 Fuel Control Shifted Lean
- P1154 Diagnostic Code – Bank 2 Fuel Control Shifted Rich
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What Is the P1153 Code?
Symptoms
Causes
Seriousness
Can I Still Drive?
Diagnose
Difficulty of Inspecting
Get Additional Help
The P1153 and P1154 diagnostic codes refer to an issue within your fuel control for bank 2, which is one side of your engine’s cylinders. The P1153 code indicates that the fuel control is shifted lean, which means there is too much air and not enough fuel, whereas the P1154 code indicates that the fuel control is shifted rich, which is the opposite problem: too much fuel and not enough air.
More About the P1153 and P1154 Codes
The P1153 and P1154 codes only refer to the bank 2 fuel control in certain vehicle makes and models, primarily Ford in the United States. Here are a few other common descriptions for these codes:
P1153
- Acura, Buick, Cadillac, Chevrolet, GM, Honda, Hummer, Hyundai, Isuzu, Kia, Oldsmobile, Pontiac, Saab, Subaru: Heated Oxygen Sensor (HO2S), various issues, most notably slow response from sensor 1, bank 2
- Chrysler, Dodge, Jeep: Fuel Rail Pressure Malfunction Rail Pressure Is Too Low
- Audi, Volkswagen: Manifold Switch Over Malfunction
P1153 and P1154
- Acura, Audi, Buick, Cadillac, Chevrolet, GMC, GM, Honda, Hummer, Isuzu, Lexus, Mini, Oldsmobile, Pontiac, Saab, Saturn, Subaru, Volvo, Volkswagen: Heated Oxygen Sensor (HO2S), various issues, most notably insufficient switching from sensor 1, bank 2
- Chrysler, Dodge, Jeep: Fuel Rail Pressure Malfunction Negative Deviation Fuel Pressure Solenoid Setpoint
- Hyundai, Kia: Accelerator Pedal Position Sensor Circuit – High Input
Remember to always check the description of the code, not just the code number, to fix the problem correctly.
What Are the Symptoms of a P1153 Code?
The symptoms of these codes will vary dramatically depending on which code you’re receiving – an engine that’s running too lean will show different symptoms than one that’s running too rich. Lean engine problems will create issues with low power, problems with backfires and popping, and even a no-start condition. Rich engine problems will create low fuel efficiency, a strong smell from the engine, and difficulty idling. The car will also show the check engine light active.
What Are Some Causes of a P1153 Code?
The causes associated with the P1153 and P1154 codes are the same as with most lean and rich engines. There may be a problem with the vehicle’s ability to moderate fuel or with the vehicle’s ability to sense the current air/fuel ratio.
How Serious Is the P1153 Code?
Running an engine seriously rich or seriously lean for a long period of time can create issues with the engine’s overall function for years to come, which can be much more expensive than just fixing the problem early on. Assume that this problem is a very serious one and fix it as soon as possible.
Can I Still Drive with a P1153 Code?
You should avoid driving with the P1153 or P1154 codes active. Even if you are able to drive the vehicle, running the engine lean or rich can cause problems that persist even after you fix the fuel mixture. Instead, drive your vehicle straight to the local repair shop if possible, or get a tow truck if you are physically not able to drive the vehicle.
How Easy Is It to Diagnose a P1153 Code?
These codes are difficult to find information about, and if you’re experiencing them, it’s very likely that the problem is deep within the vehicle’s engine. Instead of trying to diagnose the problem yourself, it’s better to take your vehicle to an expert. An expert will be able to understand the problem and help you fix it more quickly and thoroughly.
How Difficult Is It to Inspect a P1153 Code?
The fuel control is one of the smaller components of the engine, and because it connects directly to the engine, it can be difficult to access directly. If you’re not well-versed in your car’s make and model, then it’s possible that you won’t be able to find the problem well enough to even fix it. This is where an expert can come into play, helping you inspect and solve the problem.
Need Additional Help with Your P1153 Code?
Issues with the fuel control in your vehicle can lead to a number of different problems, whether the fuel control is shifted lean or shifted rich. If you’re interested in fixing this problem and you don’t want to do it yourself, then it’s a good idea to look for a local repair shop to help.
One of the best ways to fix your vehicle is to find a repair shop in your area with Kelley’s help. An expert will be able to assess, diagnose, and fix the vehicle more effectively, allowing you to solve this problem and get back on the road safely.
Additionally, many DIYers look for different ways to fix their problems on their own. The KBB OBD-II database gives you more insight into OBD error codes, so you have an understanding of what’s happening within your engine.
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