Category Archives: OBD OBDII Error Codes

OBD OBDII Error Codes

Causes and Fixes for a P219A Code

If you have a vehicle that is giving you a P219A error code, it is having an issue with the fuel delivery on bank 1. The official definition of a P219A Code is a Fuel Trim Cylinder Balance Bank 1 – Malfunction. The most common cause of a P219A OBD2 error code is a fuel injector that has… Read More »

Causes and Fixes P0430 Jeep Wrangler

If you have a Jeep Wrangler and are getting a P0430 error code, there is a problem with a catalytic converter not operating to efficiency. The official error is a “PO430: Catalyst System Efficiency Below Threshold (Bank 2)“. Several things can cause this error, including Oxygen Sensor, Exhaust Leak, and Catalytic Converter. Since the Catalytic Converter is the… Read More »

What is a P1345 OBDII Engine Code?

If you get an OBDII code P1345, it is a “Crankshaft Position-Camshaft Position Correlation” error. This is one of the more interesting errors since the vehicle still usually runs and often is not a bad camshaft position sensor. While the Camshaft Position sensor may be bad, replacing it often does not fix a P1345 error code. Replacing the… Read More »

What is a Honda P1399 OBDII Engine Code?

If you own a Honda and get an OBDII code P1399, it is a notorious error for “Random Cylinder Misfire Detected.” It is an OBDII code specific to Honda vehicles including the Accord, CRV, Odyssey, Civic, and more. The most common fix is a bad injector or spark plug wire, but it can also be caused by other… Read More »

What is a P0443 OBDII Engine Code?

If your engine light comes on and using an OBDII scan tool, you get a P0443 code; it can be diagnosed and fixed in several steps. A P0443 OBDII engine code means the computer sees a malfunction with the EVAP (Evaporative Emission) Control System Purge Valve Circuit. The EVAP system sends fumes from the gas tank to go… Read More »

How To Fix Honda Engine Error Code P3400

A video is at the bottom of the page for a visual walk-through if needed. What is an Engine OBDII Error Code P3400 A Honda with an Error Code P3400 is a Cylinder Deactivation System Bank 1. This error can be caused by several things but is commonly caused by a bad oil pressure sensor, Possible Causes Engine… Read More »

How To Fix a P0171 OBDII Error Code

System Too Lean (Bank 1)   Below is the basic causes and common fixes for a P0171 OBDII error code. What Is a P0171 Error Code? A P0171 code indicates there is a fuel/air mixture problem on bank 1 of the engine. The term Lean means the cylinder is receiving too much or too little air creating a… Read More »