If you see the engine light on or the service engine soon warning light, it could be due to the automobile fault code P1274. This code indicates a problem with the air fuel ratio (AF) sensor 1 bank 1. The possible causes include a faulty AF sensor, an open or shorted harness, poor electrical connection in the circuit, fuel pressure issues, a faulty fuel injector, or a faulty air flow meter.

To fix this issue, you should visually inspect the wiring harness and connectors, checking for any damage or corrosion.

It’s important to look for broken, bent, pushed out, or corroded connector pins. The repair time for this issue is estimated to be around 1.0.

Make sure to check the “Possible Causes” mentioned above and address them accordingly.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p1274 fault code.

  • The symptoms of the automobile fault code P1274 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p1274 can be caused by a faulty AF sensor, open or shorted harness, poor electrical connection, fuel pressure issues, faulty fuel injector, or a faulty air flow meter.

  • The fault code P1274 can be caused by the following: a faulty Air fuel ratio (A/F) Sensor 1 Bank 1, an open or shorted harness for the Air fuel ratio (A/F) Sensor 1 Bank 1, a poor electrical connection in the Air fuel ratio (A/F) Sensor 1 Bank 1 circuit, issues with the fuel pressure, a faulty fuel injector, or a faulty Air Flow Meter.

To fix the p1274 fault code, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code P1274, follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • The estimated repair time for this fix is 1.0 hour.

The automobile fault code P1274 can be diagnosed and fixed within an estimated repair time of 1.0 hour. Most auto repair shops typically charge between $75 and $150 per hour for their services.

The P1274 fault code refers to the Air Fuel Ratio (AF) sensor 1 on bank 1 of the engine. This sensor is responsible for monitoring the air to fuel ratio in the exhaust gases.

The AF sensor is a dual-cell sensor that combines a Nernst concentration cell with an oxygen-pump cell. It has a heater to maintain the required operating temperature.

The sensor can measure the air to fuel ratio precisely, even in lean or rich conditions.

It outputs a continuous signal within a wide range. The P1274 code indicates that the AF sensor 1 on bank 1 is detecting a rich shift in the air to fuel ratio. This means that there is an imbalance in the mixture, with too much fuel compared to the amount of air.

It is important to address this issue promptly, as a rich air to fuel ratio can lead to poor fuel efficiency and increased emissions. A qualified technician should diagnose and repair the underlying cause of the rich shift to ensure optimal engine performance.

What are the possible causes of the automobile fault code P1274?

If you’re seeing the engine light on or the service engine soon warning light, the fault code P1274 could be the culprit. This code is often caused by a faulty air fuel ratio (A/F) sensor 1 bank 1, an open or shorted A/F sensor 1 bank 1 harness, a poor electrical connection in the A/F sensor 1 bank 1 circuit, fuel pressure issues, a faulty fuel injector, or a faulty air flow meter. To fix the problem, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins.

How can I visually inspect the wiring harness and connectors to fix the P1274 fault code?

If you’re dealing with the P1274 fault code and your engine light is on, it’s time to take action. The cause could be a faulty air fuel ratio (A/F) Sensor 1 Bank 1, an open or shorted harness, a poor electrical connection, or even issues with fuel pressure, fuel injectors, or the air flow meter. To fix it, start by visually inspecting the wiring harness and connectors. Look for any signs of damage, like broken or bent pins, corrosion, or components that are out of place. Don’t delay – check these possible causes now!

What should I look for when checking for damaged components and connector’s pins to resolve the P1274 fault code?

If you’re dealing with the P1274 fault code and your engine light is on, it’s important to check for damaged components and connector’s pins. This code is often caused by a faulty air fuel ratio (A/F) sensor, an open or shorted A/F sensor harness, poor electrical connection in the A/F sensor circuit, fuel pressure issues, a faulty fuel injector, or a faulty air flow meter. To resolve the issue, visually inspect the wiring harness and connectors, and be on the lookout for any broken, bent, pushed out, or corroded pins. Don’t forget to check the other possible causes as well.

p1274 error fault code explained

If your engine light is on and you’re seeing the P1274 fault code, it could be due to a faulty Air fuel ratio (AF) Sensor 1 Bank 1, an open or shorted harness, poor electrical connection in the circuit, issues with fuel pressure, a faulty fuel injector, or a faulty Air Flow Meter.

To fix this, visually inspect the wiring harness and connectors for any damage, and check for broken, bent, pushed out, or corroded connector pins.

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