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B1859 Engine Trouble Code

Meaning of B1859 engine trouble code is : Theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $200-$300 depending on the car, but that's usually the cost of parts because the labor is relatively simple.

B1859 Possible Solution:

B1859 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.

B1859 Code Meaning :

B 1 8 5 9
OBD-II Diagnostic Body (B) Trouble Code For Engine Fuel And Air Metering Engine Oil Temperature Sensor Malfunction Cylinder 1 Injector Circuit Low Reverse Input Circuit

The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.

B1859 OBD-II Diagnostic Body (B) Trouble Code Description

B1859 engine trouble code is about Reverse Input Circuit.

Reason For B1859 Code

The reason of B1859 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

B1859 the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.