Category Archives: OBD OBDII Error Codes

OBD OBDII Error Codes

Causes and Fixes P0171 Honda Accord

If you have a Honda with a P0171 error code, the onboard computer (ECM) sees a problem with the gas/air-fuel ratio. The official definition for a P0171 error code is “Bank 1 System Too Lean.” What is a Honda P0171 Error Code? A Honda with a P0171 OBDII error code is a “Bank 1 System… Read More »

Causes and Fixes for a P219A OBDII 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 “Fuel Trim Cylinder Balance Bank 1 – Malfunction”. The most common cause of a P219A OBD2 error code is a fuel injector… Read More »

Causes and Fixes P0299 Code Chevy Cruze

If you have a Chevy Cruze with a P0299 code, there is an issue with low pressure from the turbo. The official definition of a P0299 code is “Turbo/Super Charger Underboost.” What is a Chevy Cruze P0299 Code? A Chevy Cruze P0299 code happens when the onboard computer (ECM) sees low pressure in the manifold.… Read More »

Causes and Fixes P0014 Code Chevy Trailblazer

If you have a Chevy Trailblazer with a P0014 error code, there are several causes and fixes. Below are the most common symptoms, along with causes and fixes. What is a Chevy Trailblazer P0014 Code? A P0014 error code is an “Exhaust (B) Camshaft Position System Performance.” Some scan tools will give an Exhaust (B)… Read More »

How To Fix Honda Engine Error Code P3400

What is a Honda P3400 Engine OBDII Error Code? 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 of a Honda P3400 Engine Error Code Defective cylinder deactivation solenoid An… 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 definition 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… Read More »

How To Fix a P0171 OBDII Error Code

If you have a vehicle with a P0171 error code, the onboard computer (ECM) is reading a problem with the air/fuel ratio. An OBDII scan tool will give the error message “P0171 “Bank 1 System Too Lean.” What Is a P0171 Error Code? A P0171 code indicates there is a fuel/air mixture problem on Bank-1… Read More »

3 Causes and Fixes Jeep P0456 Code

A Jeep with a P0456 error code points to a problem with the EVAP system. The EVAP system is a part of the emissions which help to stop gas vapors from venting into the atmosphere. What is a P0456 Jeep Code? A Jeep P0456 OBDII error code is a Small Leak Detected in the EVAP… Read More »

3 Causes and Fixes Nissan P0456 Code

If you have a Nissan and it is giving a P0456 error code, the onboard computer (ECM) is seeing a problem with the EVAP system. The official definition of a Nissan P0456 error is a “Small Leak Detected in the EVAP System.” Often related codes also are given, such as a P0448 (Vent Control Valve)… Read More »

8 Causes and Fixes for P2181 Code Dodge

If you have a Dodge with a P2181 OBDII code, there is a problem with the coolant temperature. The onboard computer (ECM/PCM) is seeing a temperature out of range problem with the engine. What is a Dodge P2181 OBDII Code? A P2181 OBDII code is a “Cooling System Performance.” When the onboard computer (ECM) detects… Read More »

Causes and Fixes P1457 Code Honda Civic

If you have a Honda Civic with a P1457 OBDII Error code, there is a problem with the Evap system. The Evap system is mainly for smog but can also affect the engine performance and gas mileage. What is a Honda Civic P1457 Code? A P1457 OBDII code is an “Evaporative Emission Control System Leak… Read More »

3 Causes and Fixes P0121 Chevy Silverado

If you have a Chevy Silverado and get a P0121 error code, there is a problem with the throttle body. An OBDII scan tool will give the error as “Throttle Position (TP) Sensor 1 Performance.” Some scan tools will give the error as “Throttle Pedal Position Sensor Switch (TPS) A Circuit Range Performance Problem.” What… Read More »

Causes and Fixes P0496 Chevy Traverse

If you have a Chevy Traverse and it gives a P0496 OBDII error code, there is a problem with the Evap system. An OBDII scan tool will give a P0496 Evaporative Emission System High Purge Flow. There are several causes of an Evap system error which are listed below. What is a P0496 OBDII Error… Read More »

Causes and Fixes P0017 GMC Acadia

If you have a GMC Acadia with a P0017 OBDII error code, there is a problem with the timing. An OBDII scan tool will give the error P0017 Crankshaft Position (CKP) – Exhaust Camshaft Position (CMP) Correlation Bank 1. Several failed components can cause a P0017 OBDII error code with the GMC Acadia, including sensors… Read More »

Causes and Fixes P2646 Honda Element

If you have a Honda Element with a P2646, the ECM does not see the rocker arm oil switch working when the rocker arm oil control solenoid is switched on. An OBDII error code will be given “P2646: Rocker arm actuator A- Bank 1 Perf. or Stuck off.” or “A Rocker Arm Actuator System Performance… Read More »

Causes and Fixes P0053 OBDII Code

If you have a vehicle with a P0053 error code, the onboard computer (ECM) is seeing a problem with an oxygen sensor. The official definition is “Heated O2 Sensor (HO2S) Heater Resistance (Bank 1, Sensor 1).” There are usually four oxygen sensors on a vehicle. What is a P0053 Error Code? A P0053 error code… 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… 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… 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… Read More »