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C1803 Engine Trouble Code

Meaning of C1803 engine trouble code is a kind of chassis trouble code and C1803 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.

C1803 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 C1803 code is occuring now you should check C1803 repair processes.
Now don't ask yourself; What should you do with C1803 code ?
The solution is here :

C1803 Possible Solution:

C1803 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.

C1803 Code Meaning :

C 1 8 0 3
OBD-II Diagnostic Chassis (C) Trouble Code For Engine Fuel And Air Metering Engine Oil Temperature Sensor Malfunction 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.

C1803 OBD-II Diagnostic Chassis (C) Trouble Code Description

C1803 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Main reason For C1803 Code

The reason of C1803 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

Parts or components should not be replaced with reference to only a C1803 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.