Fiat 147 B3978 Engine Trouble Code

Fiat 147 B3978 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.

Fiat 147 B3978 Code Meaning :

When you check Fiat 147 car engine light came on code B3978 the reason should be . However manufacturer may have a different definition for the B3978 OBD-II Diagnostic Body (B) Trouble Code. So you should chech it on our car models.

B3978 OBD-II Diagnostic Body (B) Trouble Code Description

B3978 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For B3978 Code

The reason of B3978 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

B3978 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.

B3977 Previous Engine Trouble Code For Fiat 147

Next Engine Trouble Code For Fiat 147 B3979