WayRepair Tech Insights
Tips, trends, and tools to help auto repair shops work smarter and grow stronger.
How do you fix a P0171 code?
You can usually fix P0171 by replacing/repairing one of the following: fuel pump or fuel filter, fuel pressure regulator, powertrain control module, injector/s, oxygen sensor/s, mass airflow sensor, or vacuum leak.
What is code P0420?
A P0420 code indicates that your vehicle's computer (PCM) has detected a problem with the catalytic converter. It indicates a low catalyst system efficiency, usually caused by issues with your vehicle's exhaust or fuel systems.
What is a P0300 code?
P0300 engine code stands for “Random or Multiple Cylinder Misfire Detected,” denoting multiple cylinder misfires.
How do i fix code P0174?
To fix a P0174 code, you can clean or replace the mass airflow sensor, replace a defective oxygen sensor, change the vacuum line, replace the PCV valve, EGR valve, brake booster (if leaking), or valve cover gasket.
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