U3393 Bentley 4.25-litre OBD Code

OBD/2 U3393 error code description and symptoms.

Catalytic converters must be warm before they can work properly. On a cold start the PCM provides a rich mixture to keep the cold engine running.
All that extra fuel goes into the catalytic converter. But the exhaust isn't very hot, because, ah, the engine is pretty cold. GM has employed several strategies to fire up the catalytic converter quicker and reduce cold start emissions. One way is to use a secondary air pump that pumps outside air directly into the catalytic converter.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code U3393, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code U3393 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

U3393 Bentley 4.25-litre Error Code Repair Process :

The scent may U3393 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such U3393, so if the inside of your car cid low as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

Common Causes of Bentley 4.25-litre U3393 OBD2 Code

A common cause of code U3393 is the failure of CID Low, but there are several other possible causes as well, such as ;

Dirty Oil
Camshaft Position Sensor harness is open or shorted
Intake Valve Timing Control Solenoid Valve circuit poor electrical connection
Faulty Air Flow Meter

U3393 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.

About Us | Contact | Privacy

U3393 Bentley 4.25-litre OBD Code

U3393 Bentley 4.25-litre Error Code Repair Process :

Common Causes of Bentley 4.25-litre U3393 OBD2 Code

U3393 code for other Bentley cars