Buick Codes

Trouble Code: P0030 HO2S-11 (Bank 1 Sensor 1) Heater Circuit Fault Possible Causes: HO2S low control circuit is shorted to system power (B+) HO2S low control circuit driver is shorted inside the PCM HO2S is damaged or it has failed PCM has failed  Trouble Code: P0101 MAF Sensor Signal Range/Performance Possible Causes: Base engine vacuum leak, PCV valve … Read more

Below is the diagnostic information showing what causes different trouble codes on a 2000 Buick Regal with a 3.8L engine. DIAGNOSTIC TROUBLE CODES:3.8L V6 VIN 1 Auto 1 3.8L V6 VIN 1 Auto Trouble Code: P0101 Mass Air Flow (MAF) Sensor Performance Possible Causes: Check for the following conditions: Skewed or stuck TP sensor. A … Read more

Below are the possible diagnostic trouble codes for a 2000 Buick Park Avenue with a 3.8L FI OHV 6CYL. Trouble Code: P0101 MAF Sensor Signal Range/Performance Possible Causes: Base engine vacuum leak, PCV valve leaking or stuck open Engine oil dipstick missing or not fully seated MAF sensor signal or ground circuit fault or sensor has failed PCM … Read more

Below are the diagnostic trouble codes for a 2000 Buick Lesabre. Trouble Code: P0101 MAF Sensor Signal Range/Performance Possible Causes: Base engine vacuum leak, PCV valve leaking or stuck open Engine oil dipstick missing or not fully seated MAF sensor signal or ground circuit fault or sensor has failed PCM has failed  Trouble Code: P0103 MAF Sensor Circuit … Read more