Alfa Romeo Brera P0420 Engine Trouble Code

Alfa Romeo Brera P0420 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.

Alfa Romeo Brera P0420 Code Meaning :

When you check Alfa Romeo Brera car engine light came on code P0420 the reason should be Three way catalytic converter Bank 1 does not operate properly.. However manufacturer may have a different definition for the P0420 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P0420 Fault Symptoms :

Alfa Romeo Brera P0420 Possible Solution :

The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time.If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver.

Parts or components should not be replaced with reference to only a P0420 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.