Mini Mk C3978 Engine Trouble Code

Mini Mk C3978 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.

Mini Mk C3978 Code Meaning :

When you check Mini Mk car engine light came on code C3978 the reason should be . However manufacturer may have a different definition for the C3978 OBD-II Diagnostic Chassis (C) Trouble Code. So you should chech it on our car models.

C3978 OBD-II Diagnostic Chassis (C) Trouble Code Description

C3978 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For C3978 Code

The reason of C3978 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

C3978 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.

C3977 Previous Engine Trouble Code For Mini Mk

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