U3338 Mercedes E 250 OBD Code

OBD/2 U3338 error code description and symptoms.

The Throttle Position sensor signals the Engine Control Module as to the current position of the engine throttle valve.
The current throttle valve opening is based on the driver's input from the gas pedal. The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

U3338 Mercedes E 250 Error Code Repair Process :

For bank 2 fuel control shifted rich check engine light is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. U3338 error code diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks bank 2 fuel control shifted rich with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Mercedes E 250 U3338 OBD2 Code

A common cause of code U3338 is the failure of Bank 2 Fuel Control Shifted Rich, but there are several other possible causes as well, such as ;

Damaged ECM
Faulty Intake Valve Timing Control Solenoid Valve
Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Oil flow restriction in the oil passages or the VCT valve body

U3338 is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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U3338 Mercedes E 250 OBD Code

U3338 Mercedes E 250 Error Code Repair Process :

Common Causes of Mercedes E 250 U3338 OBD2 Code

U3338 code for other Mercedes cars