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P2066 Fuel level sensor: reading or operation not right ("B")

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P2066 means: Fuel level sensor: reading or operation not right ("B"). A float in the tank measures the fuel level and passes it to the gauge and the engine computer. OK to drive, but have it checked soon. The repair usually costs about €80–400 in Estonia.

Is it safe to drive?OK to driveOK to drive, but have it checked soon.
Typical repair cost€80–400parts and labour in Estonia

What it means

A float in the tank measures the fuel level and passes it to the gauge and the engine computer. There is a signal, but the reading or operation isn't plausible. The cause may be the part itself or a real mechanical fault.

What you may notice

  • Fuel gauge wrong or jumping
  • Engine light on

What could be wrong

  1. 1Worn fuel level sender (float)
  2. 2Wire or connector on top of the tank
  3. 3Instrument cluster

Repair difficulty: Moderate

What you can check yourself

Until it's fixed, keep track of your mileage so you don't run out of fuel. You can check the simple things yourself, but the repair is best done in a workshop.

How we fix it

  1. We read the sensor on the diagnostic tool and compare it with other sensors
  2. We check the connector, supply and ground
  3. We repair the wiring or replace the fuel level sender

Standard SAE description: Fuel Level Sensor "B" Circuit Performance

This code usually comes with: Check engine lightSee what the light means →

Want a definite answer?

Bring the car to our workshop in Estonia for diagnostics. We read the fault codes, test the sensors and tell you what is wrong. Repair price depends on the work involved, generally €45 per hour.

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Questions

What does fault code P2066 mean?

Fuel level sensor: reading or operation not right ("B"). A float in the tank measures the fuel level and passes it to the gauge and the engine computer. There is a signal, but the reading or operation isn't plausible. The cause may be the part itself or a real mechanical fault.

Can I drive with code P2066?

OK to drive, but have it checked soon.

How much does it cost to fix P2066?

Roughly €80–400 in Estonia. The price depends on exactly what has failed and on the car.

How is P2066 fixed?

We read the sensor on the diagnostic tool and compare it with other sensors. We check the connector, supply and ground. We repair the wiring or replace the fuel level sender.

Related codes

P2067Fuel level sensor: signal or voltage too low ("B")P2065Fuel level sensor: circuit fault ("B")P0103Mass air flow sensor signal too highP0105Fault in the intake pressure (MAP) sensor wiringP0106Intake pressure (MAP) sensor reads wrongP0070Outside air temperature sensor: circuit fault

Based on AI combined with our hands-on workshop experience and knowledge. This information is general and prices are approximate (Estonian workshop rates). The same code can mean different things on different cars. Only an inspection of the car gives a definite answer.

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