Buick Regal P0172: Fuel System Rich – Bank 1

A common trouble code with the Buick Regal is P0172. This code number references a number given to you when you plug your car into an OBDII scanner. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common. It means the motor is running rich. Buick Regal … Read more

Buick Regal P0341: CPS – Range/Performance

P0341 is a somewhat common OBDII diagnostic code in the Buick Regal. It means that there is a Range/Performance problem. In layman terms this means that there is a problem with the signal coming from the Camshaft Position Sensor (CPS).   OBDII P0341 means that there is a problem with the Camshaft Position Sensor (CPS) … Read more

Buick Regal P0340 Code: Diagnosis, Causes, How to Fix

One of the more common engine management trouble codes that can occur in the Buick Regal is P0340. It’s a generic code, which means it has the same definition for every car or truck made after 1996. P0340 is related to the camshaft position sensor and points to an issue with the wiring harness connected … Read more

Buick Regal P0122: TPS “A” Circuit Low Input

P0122 is a common trouble code with the Buick Regal. It’s an OBDII code that references issues with the Throttle Position Sensor (TPS). It is relatively serious problem since it can leave your vehicle stranded or severely limited.     OBDII code P0122 is a serious problem that requires serious attention. Diagnosing it can be … Read more

Buick Regal P0457: EVAP System – Leak Detected

P0457 is a somewhat common trouble code with the Buick Regal. This code references a number that is given to you when you plug your Regal into a OBDII scanner. P0457 Indicates that there is a leak in the Evaporative Emission Control (EVAP) System. It is similar to P0455 (large leak) and P0456 (small leak) … Read more

P0128 Buick Regal: Meaning, Causes, How to Fix

The P0128 OBD II trouble code indicates that your Buick Regal’s engine coolant temperature has not reached its required operating temperature within a certain amount of time after starting the car. This code can appear as soon as you start your vehicle, or it can also occur while driving. It’s essential to address this issue … Read more

Buick Regal P1516 Diagnosis

P1516 is a very common trouble code. It is a GM ONLY code, which means that it has the same meaning only for GM vehicles, such as the Buick Regal. A P1516 for a Hyundai, for example, means something totally different. Trouble code P1516 lets you know that the Throttle Actuator Control (TAC) Module has … Read more

Buick Regal P0456: Meaning, Causes, How to Fix

One of the most common trouble codes with the Buick Regal is the P0456 code. This trouble code references a number that is given to you when you plug your Regal into an OBDII scanner. P0456 Indicates that there is a small leak in the evaporative emission control system. It often appears with or is … Read more

Buick Regal P0102: Meaning, Causes, + How to Fix

If you own a Buick Regal, you may have encountered the P0102 trouble code. This code indicates that the Mass Air Flow (MAF) circuit is low and not performing within its specified operating range. When this happens, your car may experience drivability issues such as stalling, lack of power, rough idle, and hesitation. There are … Read more