Code Search

Please fill the "Code Box" to find engine fault code.

How To Clear Check Engine Lights ?

Ways to clear check engine light on car panel.

Check Engine Light Dictionary

Ways to clear check engine light on car panel.

Other Alfa Cars:

Alfa Romeo 164 P0420 Engine Trouble Code

Alfa Romeo 164 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 164 P0420 Code Meaning :

P	0	4	2	0
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine	Intake Valve Control Solenoid Circuit Low	O2 Sensor Heater Circuit Malfunction	Turbocharger Boost Sensor A Circuit Low	Shift Solenoid E Performance or Stuck Off

When you check Alfa Romeo 164 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 :

Check engine light comes on
Engine stalling or misfiring
Engine performance issues
Car not starting

If one of these reasons for P0420 code is occuring now you should check P0420 repair processes.
Now don't ask yourself; What should you do with P0420 code ?
The solution is here :

Alfa Romeo 164 P0420 Possible Solution :

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.

P0420 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0420 OBD-II Trouble Code The Engine Control Module ( P0420 code.

Reason For P0420 Code

The reason of P0420 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.

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.

	Example: 0120