Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161208-33384-1d91r2bjs:136:3912)
    at m.mountComponent (/tmp/execjs20161208-33384-1d91r2bjs:47:15602)
    at /tmp/execjs20161208-33384-1d91r2bjs:49:31860
    at a.r.perform (/tmp/execjs20161208-33384-1d91r2bjs:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161208-33384-1d91r2bjs:49:31821)
    at r (/tmp/execjs20161208-33384-1d91r2bjs:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161208-33384-1d91r2bjs:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161208-33384-1d91r2bjs:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161208-33384-1d91r2bjs:173:8), <anonymous>:17:3)
    at /tmp/execjs20161208-33384-1d91r2bjs:173:8

P0177 OBD-II Trouble Code: Fuel Composition Sensor Circuit Range/Performance

Check Engine Light

P0177 code definition

Fuel Composition Sensor Circuit Range/Performance

What the P0177 code means

P0177 is a generic OBD-II code indicating that the diesel fuel sensor has detected water in the fuel filter, or the fuel composition sensor is out of its specification range.

What causes the P0177 code?

  • The engine control module (ECM) receives input from the diesel fuel sensor that water is detected in the fuel, or the fuel composition sensor is not within specification range, and triggers the P0177 code

What are the symptoms of the P0177 code?

  • The Water in Fuel illuminates on the instrument cluster
  • The ECM sets code P0177 to memory and triggers the Check Engine Light

How does a mechanic diagnose the P0177 code?

  • Scans codes and documents the freeze frame data, then clears the codes to verify code returns

  • Drains off water in the fuel filter by opening the water drain valve on the fuel filter housing

  • If the Water in the Fuel Light does not go out, removes the fuel filter and tests the sensor, replacing it if shorted or out of specification range for the vehicle being tested

  • Clears codes and tests the system to see if the Water in Fuel Light goes out, and the P0177 code does not return

Common mistakes when diagnosing the P0177 code

Follow these simple guidelines to prevent misdiagnosis:

  • Drain fuel from the filter until no more water is present. If excess water is still in the fuel sample, then the fuel in the tank may be contaminated with excessive water and would need to be drained and replaced.

How serious is the P0177 code?

  • If excessive water is in the fuel then you will have engine starting and running issues.
  • The engine may misfire, hesitate, and stall.

What repairs can fix the P0177 code?

Additional comments for consideration regarding the P0177 code

Not many manufactures use the code P0177, and the code is set in the computer memory to indicate the engine fuel has or had water in it.

Need help with a P0177 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.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

Post a question and get free advice from our certified mechanics.

ASK A QUESTION

More related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Get a Louisiana Driver's Permit
s licensing program. The first step in this program is to obtain...
Veteran and Military Driver Laws and Benefits in New Mexico
The state of New Mexico offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch...


Related questions

Q: Engine knock and low engine power

Hi there: The problem with trying to diagnose a ticking issue remotely is the fact that it could be multiple; yet completely different mechanical systems that are causing this issue; ranging from the timing chain being loose, to fuel system...

Q: Intake manifold runner control stuck

The IMRC (Intake manifold runner control) is a vacuum modulated solenoid that operates a butterfly valve in the intake manifold. The purpose is to optimize the air/fuel ratio for best fuel economy and drivability. Sometimes the code will refer to...

Q: Vehicle shuts off intermittently at idle

The P0113 code relates to a problem with the intake air temperature (IAT) sensor. The computer is seeing a reading that is outside of its normal parameters and is causing the computer to set the code. This could also be...