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P3603 Engine Trouble Code

Meaning of P3603 engine trouble code is a kind of powertrain trouble code and P3603 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 $2,140 and you can't do it yourself unless you're an experienced mechanic.

P3603 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for P3603 code is occuring now you should check P3603 repair processes.
Now don't ask yourself; What should you do with P3603 code ?
The solution is here :

P3603 Possible Solution:

P3603 Engine

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.

P3603 Code Meaning :

P 3 6 0 3
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Ignition System Or Misfire Fuel Temperature Sensor B Circuit Range/Performance Cold Start Injector 1 Malfunction Exhaust Gas Recirculation Sensor B Circuit High

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.

P3603 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P3603 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Main reason For P3603 Code

The reason of P3603 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.

Parts or components should not be replaced with reference to only a P3603 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.