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B0789 Engine Trouble Code

Meaning of B0789 engine trouble code is : When the check engine light comes B0789 code on the first you should check is the gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. Alternately, you can purchase a gas cap for about $3 at an auto parts store. All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage.

B0789 Possible Solution:

B0789 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.

B0789 Code Meaning :

B 0 7 8 9
OBD-II Diagnostic Body (B) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Fuel Rail Pressure Sensor Circuit Malfunction Ignition/Distributor Engine Speed Input Circuit Malfunction Reverse Input Circuit

The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions.

B0789 OBD-II Diagnostic Body (B) Trouble Code Description

B0789 engine trouble code is about Reverse Input Circuit.

Reason For B0789 Code

The reason of B0789 OBD-II Engine Trouble Code is Fuel Rail Pressure Sensor Circuit Malfunction.

Parts or components should not be replaced with reference to only a B0789 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.