Chase Bierenkoven

Contributor

Chase Bierenkoven has been writing about cars in his head since he was a child. Now, he does it for real, covering automotive news and producing reviews for outlets like Edmunds, Forbes Wheels and CarBuzz. Chase's career as an automotive journalist began in 2020, and he has already written scores of road tests. Some favorites of Chase's include the Dodge Challenger 392, Mazda Miata, Kia EV6 and Bentley Bentayga. Outside his work with cars, Chase is often found justifying his latest broken German sports car to anyone that will listen or enjoying the outdoor spaces of his native Colorado.

See Edmunds' testing procedures that power our industry-leading car reviews.

How to Use the Edmunds New Car Inventory Tool

Jun 30, 2025

Car Buying

You know the car you want and now it's time to find it on the dealer's lot with the Edmunds New Car Inventory Tool.

By Chase Bierenkoven

How to Use the Edmunds New Car Inventory Tool

P0133: Oxygen Sensor Slow Response (Bank 1, Sensor 1)

Jun 16, 2025

Obd Dtc

The P0133 check engine diagnostic trouble code stands for "Oxygen Sensor Slow Response (Bank 1, Sensor 1)." The presence of this code indicates that the powertrain control module is no longer receiving signals from the oxygen sensor located on bank 1, sensor 1. Here's how to diagnose it and what possible fixes might resolve it.

By Chase Bierenkoven

P0505: Idle Control System Malfunction

Jun 16, 2025

Obd Dtc

The check engine diagnostic trouble code P0505 means your car has detected an “Idle Control System Malfunction.” The code triggers when the idle air control system goes bad in some way. Here's how to diagnose it and what possible fixes might resolve it.

By Chase Bierenkoven

P0740: Torque Converter Clutch Circuit Malfunction

May 28, 2025

Obd Dtc

Do you have a check engine light diagnostic trouble code of P0740? Here's what it stands for, what the symptoms might be, and any potential fixes for it.

By Chase Bierenkoven

P0117: Engine Coolant Temperature Sensor Circuit Low Input

May 28, 2025

Obd Dtc

Do you have a check engine light diagnostic trouble code of P0117? Here's what it stands for, what the symptoms might be and any potential fixes for it.

By Chase Bierenkoven