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B1803 Engine Trouble Code

Meaning of B1803 engine trouble code is : B1803 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.

B1803 Possible Solution:

B1803 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.

B1803 Code Meaning :

B 1 8 0 3
OBD-II Diagnostic Body (B) 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.

B1803 OBD-II Diagnostic Body (B) Trouble Code Description

B1803 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For B1803 Code

The reason of B1803 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

Parts or components should not be replaced with reference to only a B1803 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.