Rover P4 U3974 Engine Trouble Code

Rover P4 U3974 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.

Rover P4 U3974 Code Meaning :

When you check Rover P4 car engine light came on code U3974 the reason should be . However manufacturer may have a different definition for the U3974 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U3974 OBD-II Diagnostic Network (U) Trouble Code Description

U3974 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For U3974 Code

The reason of U3974 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

U3974 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.

U3973 Previous Engine Trouble Code For Rover P4

Next Engine Trouble Code For Rover P4 U3975