GMC Envoy P0172: Fuel System Rich – Bank 1

A common trouble code with the GMC Envoy is P0172. This code number references a number given to you when you plug your vehicle 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. GMC Envoy … Read more

GMC Envoy P0341: CPS – Range/Performance

P0341 is a somewhat common OBDII diagnostic code in the GMC Envoy. 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

GMC Envoy P0340 Code: Diagnosis, Causes, How to Fix

One of the more common engine management trouble codes that can occur in the GMC Envoy 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

GMC Envoy P0122: TPS “A” Circuit Low Input

P0122 is a common trouble code with the GMC Envoy. 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

GMC Envoy P0457: EVAP System – Leak Detected

P0457 is a somewhat common trouble code with the GMC Envoy. This code references a number that is given to you when you plug your Envoy 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 GMC Envoy: Meaning, Causes, How to Fix

The P0128 OBD II trouble code indicates that your GMC Envoy’s engine coolant temperature has not reached its required operating temperature within a certain amount of time after starting the vehicle. 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

GMC Envoy P0456: Meaning, Causes, How to Fix

One of the most common trouble codes with the GMC Envoy is the P0456 code. This trouble code references a number that is given to you when you plug your Envoy 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

GMC Envoy P0102: Meaning, Causes, + How to Fix

If you own a GMC Envoy, 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 vehicle may experience drivability issues such as stalling, lack of power, rough idle, and hesitation. There are … Read more

GMC Envoy P0101: Meaning, Causes, and Diagnosis

P0101 code in the GMC Envoy is crucial to maintaining your truck’s performance and ensuring it runs efficiently. This code indicates that there is a problem with your vehicle’s Mass Air Flow (MAF) sensor, specifically, a Range/Performance issue. The most common cause of P0101 is a bad MAF sensor. When you encounter the P0101 code, … Read more