Buick LeSabre P0401: EGR – Insufficient Flow Diagnosis

P0401 is a common OBDII trouble code that’ll pop up in the Buick LeSabre. It has to do with the emissions system and stands for: The EGR system on a vehicle is responsible for recirculating exhaust gasses in order to lower the vehicles emissions output. There are three main parts of the LeSabre’s EGR system. … Read more

Buick LeSabre P0302: Misfire Detected – Cylinder 2

P0302 is a relatively common Buick LeSabre trouble code. It stands for:     P0302 is certainly a cause for concern, and can be a threat to the drivability the Buick LeSabre. The nice thing about it is that the P0302 has tracked the problem to a particular cylinder, which makes diagnosing the problems simpler … Read more

Buick LeSabre P0011: OBDII Code Diagnosis

P0011 is a very common trouble code. It affects vehicles with variable valve timing (VVT). The list of VVT vehicles is growing, and the Buick LeSabre can have VVT, and is prone to developing this code. P0011 is a generic OBDII code. This means that it has the same definition for the Buick LeSabre as … Read more

Buick LeSabre P0301: Misfire Detected – Cylinder 1

P0301 is a common OBDII trouble code that appears in the Buick LeSabre. It stands for:     P0301 should be considered a cause for concern, and can be a threat to the drivability your LeSabre. The one nice thing about P0301 is that it is a cylinder specific misfire code. This makes diagnosing the … Read more

Buick LeSabre P0300: Engine Misfire Detected

P0300 is one of the most common OBDII codes that occurs in the Buick LeSabre. It stands for: P0300 is certainly a cause for concern, and can be a threat to the drivability the Buick LeSabre. It will often be accompanied by codes P0301-P0308. These particular codes also indicate that there is a misfire detected, … Read more

Buick LeSabre P0500: VSS – Circuit Malfunction

  P0500 is a OBDII trouble code that affects the Buick LeSabre‘s Vehicle Speed Sensor (VSS). The VSS sends a signal to the engine’s computer letting it know how fast that the vehicle is going. The LeSabre uses this signal for many vehicle functions. It helps control transmission shifts, ABS, cruise control, the speedometer, and … Read more