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B3900 Engine Trouble Code

Meaning of B3900 engine trouble code is : B3900 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.

B3900 Possible Solution:

B3900 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.

B3900 Code Meaning :

B 3 9 0 0
OBD-II Diagnostic Body (B) Trouble Code For Engine Ignition System Or Misfire Injector Circuit Malfunction - Cylinders Cold Start Injector 1 Malfunction Shift Solenoid E Performance or Stuck Off

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.

B3900 OBD-II Diagnostic Body (B) Trouble Code Description

B3900 engine trouble code is about Shift Solenoid E Performance or Stuck Off.

Reason For B3900 Code

The reason of B3900 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

Parts or components should not be replaced with reference to only a B3900 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.