P2068 OBD-II Trouble Code: Fuel Level Sensor “B” Circuit High

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P2068 code

P2068 is a diagnostic trouble code (DTC) for "Fuel Level Sensor “B” Circuit High". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $114.99 . Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.0 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford $114.99 $20.0
Toyota $114.99 $20.0
BMW $124.99 $20.0
SCHEDULE P2068 DIAGNOSTIC Get a fair and transparent estimate upfront

P2068 trouble code definition

Fuel Level Sensor “B” Circuit High

What the P2068 code means

This code indicates the fuel level sensor is indicating a higher than expected voltage. The higher the value the more fuel is in the tank.

What causes the P2068 code?

If your tank was full as you leave for a long trip, the voltage reading should decrease as the fuel in the tank is used. Each manufacturer will vary slightly, but the method for setting this code is the same. While driving a preprogrammed distance, the PCM expects to see a drop in fuel level, if the fuel level drops less than a specified amount, this DTC will be set.

What are the symptoms of the P2068 code?

  • The owner will likely become aware of the Check Engine Light first.

  • If the driver is paying attention, they will likely notice the fuel gauge hasn’t moved as far as it should.

  • It is possible the fuel sender will still be working but out of the specification of what the PCM expects.

How does a mechanic diagnose the P2068 code?

As with any Check Engine Light, a mechanic should first connect a scanner checking for codes and review the relevant data. In this case he/she would be looking at the voltage reading from the fuel tank level sender. Ideally, the mechanic would remove or add fuel to the tank and watch to see if the voltage reading changes accordingly.

Often times it is challenging to remove fuel from the fuel tank and adding fuel will only make replacing the sender much more difficult due to the added weight. Often it is more time effective to remove the fuel tank, remove the fuel sender and actuate it manually while watching the fuel gauge, and scan data.

In the process of removing the tank, it is advisable to check the fuel pump module’s electrical connector for damage or other signs of a bad electrical connection. If one is found, the connector should be replaced. It is common for a replacement or upgrades connector to be included with a fuel pump module.

Common mistakes when diagnosing the P2068 code

If a vehicle is using this code, it will have two fuel tanks. The extra fuel tank is for extra capacity or the size of the tank was to large to fit into a single cavity. If this is the case, the size of one tank will be split into two. Because there are two tanks, it is very easy to mistake which tank this code is referring to. Extra time should be spent to insure the correct sender is being removed.

How serious is the P2068 code?

The code is only serious because of the potential to run out of fuel. If you are on a long trip, most people won’t stop to have their Check Engine Light read if the vehicle is running ok. It’s possible the driver won’t realize the fuel gauge isn’t moving and keep driving until it is too late. Aside from running out of gas, this code poses no other problems to the vehicle.

What repairs can fix the P2068 code?

The most common fix for this code is the fuel level sending unit. On some vehicles, depending on the year make and model, it is necessary to replace the fuel pump and sender as a unit. Even if the fuel pump isn’t failing, the tank removal is time consuming and challenging, so replacing the fuel pump at this time is a good choice for preventative maintenance.

Additional comments for consideration regarding the P2068 code

Fuel level sending units are common failures with all manufacturers. Vehicles with the most common failures are Chevy trucks and SUV’s, followed by Dodge and Ford. Of all the fuel pumps I have replaced, I have replaced more Chevy truck fuel pumps and senders than any other. Asian and European vehicles seem to do better as far as fuel senders and fuel pumps are concerned.

Need help with a P2068 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

Check Engine Light
trouble codes
P2068

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P2068 code.

SCHEDULE P2068 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating

(7400)

Rating Summary
6879
249
58
41
173
6879
249
58
41
173
 at YourMechanic

David

13 years of experience
393 reviews
David
13 years of experience
Chevrolet Malibu L4-2.4L - Check Engine Light is on Inspection - Marietta, Georgia
He explained everything to me in detail on what I needed to know about my car. Definitely recommend him for getting the job done.
 at YourMechanic

Raymond

37 years of experience
402 reviews
Raymond
37 years of experience
Toyota Camry L4-2.2L - Check Engine Light is on - Las Vegas, Nevada
Raymond did a great job however I was charged for two hours labor and he was only here less than 45 minutes. should I expect this on future appointments with your mechanic ?
 at YourMechanic

Shane

17 years of experience
217 reviews
Shane
17 years of experience
Volkswagen EuroVan V6-2.8L - Check Engine Light is on Inspection - Austin, Texas
Arrived on time. Explained the issues he found and how he will fix it. I have parts on order and will schedule an appointment to have Shane install the parts when they arrive.
 at YourMechanic

Kanstantsin

19 years of experience
51 reviews
Kanstantsin
19 years of experience
Ford F-150 V8-4.6L - Check Engine Light is on Inspection - Littleton, Colorado
Kanstantsin arrived early. Was very courteous and professional. Will highly recommend to anyone. Thank you Kanstantsin.


Related questions

Check engine light p2068
It doesn't like you have a fuel sensor problem. The code (https://www.yourmechanic.com/article/p2068-obd-ii-trouble-code-fuel-level-sensor-b-circuit-high-by-robert-kulp)you're having could be due to an issue possibly with a wire connection or just a bad sensor. You will find the sensor on the right side of the...

More related articles

P0880 OBD-II Trouble Code: Traction Control Module (TCM) Power Input Signal
P0880 means that the TCM communication circuit is not communicating with the PCM due to a malfunction in the activation switch.
P0632 OBD-II Trouble Code: Odometer Not Programmed – ECM/PCM
P0632 means that the PCM is unable to read the odometer due to battery in the vehicle becoming discharged or for electrical reasons.
P2501 OBD-II Trouble Code: Generator Lamp/L-Terminal Circuit High
P2501 means there is an issue with the generator lamp control circuit. This could be due to defects in the alternator, battery, or starter.

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com