Peugeot 405 U3979 Engine Trouble Code

Peugeot 405 U3979 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.

Peugeot 405 U3979 Code Meaning :

When you check Peugeot 405 car engine light came on code U3979 the reason should be . However Peugeot manufacturer may have a different definition for the U3979 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U3979 OBD-II Diagnostic Network (U) Trouble Code Description

U3979 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For U3979 Code

The reason of U3979 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

U3979 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.

U3978 Previous Engine Trouble Code For Peugeot 405

Next Engine Trouble Code For Peugeot 405 U3980