Honda Civic Tech Tip: Inaccurate Fuel Gauge Reading – UnderhoodService

Honda Civic Tech Tip: Inaccurate Fuel Gauge Reading

At any fuel level, the fuel gauge reading drops by 1/4 tank, or three to four graduation marks. In some cases, the fuel gauge indicates "E" and the low fuel warning light is on. After driving for several minutes, or cycling the ignition switch off/on, the fuel gauge returns to the correct reading.

Vehicles:
2003-2004 Civic 4-door EX and LK – VIN starts with 1HG or 2HG.

Symptom:
At any fuel level, the fuel gauge reading drops by 1/4 tank, or three to four graduation marks. In some cases, the fuel gauge indicates “E” and the low fuel warning light is on. After driving for several minutes, or cycling the ignition switch off/on, the fuel gauge returns to the correct reading. This problem is intermittent and it affects only Civics with Visteon gauge assemblies.

Probable Cause:
The software specification for calculating the current fuel level is incorrect.

Corrective Action:
Replace the gauge assembly.

Repair Procedure:

  1. Tilt the steering wheel all the way up.
  2. Remove the three upper cover mounting screws from the lower steering column cover, then tilt the steering wheel all the way down and remove the column covers.
  3. Remove the two mounting screws from the instrument panel trim. Gently pull on the bottom of the trim to release the two clips and the two hooks. Carefully pull the trim out of the dashboard.
  4. Remove the three mounting screws from the gauge assembly and gently pull it away from the dashboard. Unplug the blue and green 22P connectors from the top of the assembly, then remove the gauge assembly.
  5. Install the appropriate new gauge assembly.  Note:
    • Laws governing odometer repair, replacement or servicing may vary from state to state. Questions concerning state law should be directed to your applicable state agency, DMV office or an attorney.
    • Refer to the Honda Service Operations Manual (Section 2.24) for warranty policies and procedures regarding odometer servicing and replacement.
  6. Reinstall all removed parts.

For additional information, visit www.mitchell1.com.

Technical service bulletin courtesy of Mitchell 1.

You May Also Like

Supercharger Pros And Cons

Customers generally look to superchargers for the instant throttle response, not fuel economy.

Superchargers are synonymous with making horsepower, especially in drag racing, gaining popularity and recognition as a viable power adder. However, they’re not the best option for saving fuel.

While most automakers are currently fascinated with employing turbochargers to make up for lost horsepower due to lower-displacement engines, do superchargers have a place in the current automotive climate? Indeed, this power-adder is more commonly found in the performance arena, because it produces power at lower rpm and comes in a smaller package than a turbocharger. But there are some downsides.

Continental Releases 67 New Part Numbers

Twenty-two new import part numbers, as well as 39 new pulley and tensioner part numbers, are immediately available.

Standard Motor Products Introduces 268 New Numbers

The release provides new coverage in 75 product categories and 80 part numbers for 2023 and 2024 model-year vehicles, SMP said.

Toyota Explores Lithium-Ion Battery Recycling

The joint research project seeks to utilize a new process for recovering critical battery materials.

Ignition Coil Output

To see inductance inside the primary windings, use an amp probe placed around the positive wire for the ignition coil.

Other Posts

Plastic Timing Chain Guides

Timing chain guides are designed to wear, but the guides are designed to last the engine’s life.

Honda to Establish EV Value Chain in Ontario, Canada

It will strengthen EV supply system and capability with an eye toward a future increase in EV demand in North America, Honda said.

PRT Launches 30 New Complete Strut Assemblies

The new items represent more than 10 million vehicles in new coverage, PRT said.

BCA Bearings Unveils 2024 Endless Summer Promotion

The Endless Summer promotion runs from May 1 through June 30, 2024.