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U0004 Engine Trouble Code

U0004 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,000 and you can't do it yourself unless you're an experienced mechanic.

U0004 Code Meaning :

U 0 0 0 4
OBD-II Diagnostic Network (U) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Injector Circuit Malfunction - Cylinders Crankshaft Position Sensor A Circuit Malfunction Exhaust Gas Recirculation Sensor B Circuit High
  Engine

When you check car engine light came on code U0004 the reason should be . However manufacturer may have a different definition for the U0004 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U0004 OBD-II Diagnostic Network (U) Trouble Code Description

U0004 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For U0004 Code

The reason of U0004 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

U0004 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.

U0003 Previous Engine Trouble Code For Next Engine Trouble Code For U0005