Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBUICK1999REGAL LSREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM - TESTS W/CODES - DTC P0205-P0351
1999 Buick Regal LS
Engine Control System - Tests W/Codes - DTC P0205-P0351
1999 Buick Regal LSSECTION Engine Control System - Tests W/Codes - DTC P0205-P0351
- Model Identification
- DTC P0205
- DTC P0205: Injector No. 5 Control Circuit (3.0L "V" Body)
- DTC P0205: Injector No. 5 Control Circuit (3.1L "N" & "W" Bodies & 3.4L "N" Body & "U" Series)
- DTC P0205: Injector No. 5 Control Circuit (3.5L "W" Body)
- DTC P0205: Injector No. 5 Control Circuit (3.8L "C", "F", "G", "H" & "W" Bodies)
- DTC P0205: Injector No. 5 Control Circuit (4.0L "G" Body & 4.6L "E" & "K" Bodies)
- DTC P0206
- DTC P0206: Injector No. 6 Control Circuit (3.0L "V" Body)
- DTC P0206: Injector No. 6 Control Circuit (3.1L "N" & "W" Bodies & 3.4L "N" Body & "U" Series)
- DTC P0206: Injector No. 6 Control Circuit (3.5L "W" Body)
- DTC P0206: Injector No. 6 Control Circuit (3.8L "C", "F", "G", "H" & "W" Bodies)
- DTC P0206: Injector No. 6 Control Circuit (4.0L "G" Body & 4.6L "E" & "K" Bodies)
- DTC P0207
- DTC P0208
- DTC P0217/218
- DTC P0230
- DTC P0230: Fuel Pump Control Circuit (3.0L "V" Body)
- DTC P0230: Fuel Pump Control Circuit (3.1L "N" & "W" Bodies & 3.4L "N" Body & "U" Series)
- DTC P0230: Fuel Pump Control Circuit (3.5L "W" Body)
- DTC P0230: Fuel Pump Control Circuit (3.8L "C", "F", "G", "H" & "W" Bodies)
- DTC P0230: Fuel Pump Control Circuit (4.8L, 5.3L & 6.0L "C" & "K" Series)
- DTC P0230: Fuel Pump Control Circuit (5.7L "F" & "Y" Bodies)
- DTC P0231
- DTC P0232
- DTC P0243
- DTC P0300
- DTC P0300: Random Cylinder Misfire Detected (1.9L SATURN)
- DTC P0300: Engine Misfire Detected (2.2L "J" Body & "S" Series)
- DTC P0300: Engine Misfire Detected (2.4L "J" & "N" Bodies)
- DTC P0300: Engine Misfire Detected (3.0L "V" Body)
- DTC P0300: Engine Misfire Detected (3.1L "N" & "W" Bodies & 3.4L "N" Body & "U" Series)
- DTC P0300: Engine Misfire Detected (3.8L "C", "F", "G", "H" & "W" Bodies)
- DTC P0300: Engine Misfire Detected (4.0L "G" Body & 4.6L "E" & "K" Bodies)
- DTC P0300: Misfire Detected (4.3L, 5.0L, 5.7L & 7.4L "C", "G", "K" & "P" Series)
- DTC P0300: Engine Misfire Detected (4.3L "L", "M", "S" & "T" Series)
- DTC P0300: Engine Misfire Detected (4.8L, 5.3L & 6.0L "C" & "K" Series)
- DTC P0300: Engine Misfire Detected (5.7L "F" Body)
- DTC P0300: Engine Misfire Detected (5.7L "Y" Body)
- DTC P0301
- DTC P0302
- DTC P0303
- DTC P0304
- DTC P0305
- DTC P0306
- DTC P0322
- DTC P0325
- DTC P0325: Knock Sensor Circuit (2.2L "J" Body & "S" Series & 2.4L "J" & "N" Bodies)
- DTC P0325: Knock Sensor Circuit-Bank 1 (3.0L "V" Body)
- DTC P0325: Knock Sensor Module Circuit (3.1L "N" & "W" Bodies & 3.4L "N" Body & "U" Series)
- DTC P0325: Knock Sensor Module Circuit (3.5L "W" Body)
- DTC P0325: Knock Sensor Module Circuit (3.8L "C", "F", "G", "H" & "W" Bodies)
- DTC P0325: Knock Sensor Module Circuit (4.0L "G" Body & 4.6L "E" & "K" Bodies)
- DTC P0325: Knock Sensor Module Circuit (4.3L, 5.0L, 5.7L & 7.4L "C", "G", "K" & "P" Series)
- DTC P0325: Knock Sensor Module Circuit (4.3L "L", "M", "S" & "T" Series)
- DTC P0325: Knock Sensor Module Circuit (4.8L, 5.3L & 6.0L "C" & "K" Series)
- DTC P0325: Knock Sensor Module Circuit (5.7L "F" & "Y" Bodies)
- DTC P0326
- DTC P0327
- DTC P0327: Knock Sensor Circuit Malfunction (1.9L SATURN)
- DTC P0327: Knock Sensor Circuit-Low Voltage (3.1L "N" & "W" Bodies & 3.4L "N" Body & "U" Series)
- DTC P0327: Knock Sensor Circuit-Low Voltage (3.5L "W" Body)
- DTC P0327: Knock Sensor Circuit-Bank 1 (3.8L "C", "F", "G", "H" & "W" Bodies)
- DTC P0327: Knock Sensor Circuit-Low Voltage (4.0L "G" Body & 4.6L "E" & "K" Bodies)
- DTC P0327: Knock Sensor Circuit-Low Voltage (4.3L, 5.0L, 5.7L & 7.4L "C", "G", "K" & "P" Series)
- DTC P0327: Knock Sensor Circuit-Low Voltage (4.3L "L", "M", "S" & "T" Series)
- DTC P0327: Knock Sensor Circuit-Front (4.8L, 5.3L & 6.0L "C" & "K" Series)
- DTC P0327: Knock Sensor Circuit-Front (5.7L "F" & "Y" Bodies)
- DTC P0330
- DTC P0332
- DTC P0335
- DTC P0335: Crankshaft Position (CKP) Sensor Circuit (2.2L "J" Body & "S" Series & 2.4L "J" & "N" Bodies)
- DTC P0335: Crankshaft Position Sensor Circuit (3.0L "V" Body)
- DTC P0335: Crankshaft Position Sensor "A" Circuit (3.5L "W" Body)
- DTC P0335: Crankshaft Position (CKP) Sensor Circuit (4.8L, 5.3L & 6.0L "C" & "K" Series)
- DTC P0335: Crankshaft Position (CKP) Sensor Circuit (5.7L "F" & "Y" Bodies)
- DTC P0336
- DTC P0336: Crankshaft Position (CKP) Sensor Circuit-Signal Intermittent Or Noisy-Extra Pulses (1.9L SATURN)
- DTC P0336: 24X Reference Signal Circuit (3.1L "N" & "W" Bodies) Or Crankshaft Position (CKP) Sensor Circuit Performance (3.4L "N" Body & "U" Series)
- DTC P0336: 18X Reference Signal Circuit (3.8L "C", "F", "G", "H" & "W" Bodies)
- DTC P0336: Crankshaft Position (CKP) Sensor Circuit Performance (4.3L, 5.0L, 5.7L & 7.4L "C", "G", "K" & "P" Series)
- DTC P0336: Crankshaft Position (CKP) Sensor Circuit Performance (4.3L "L", "M", "S" & "T" Series)
- DTC P0336: Crankshaft Position (CKP) Sensor Circuit Performance (4.8L, 5.3L, 6.0L "C" & "K" Series)
- DTC P0336: Crankshaft Position (CKP) Sensor Circuit Performance (5.7L "F" & "Y" Bodies)
- DTC P0337
- DTC P0338
- DTC P0339
- DTC P0340
- DTC P0340: Cylinder Detect Signal Missing (1.9L SATURN)
- DTC P0340: Camshaft Position (CMP) Sensor Circuit (3.0L "V" Body)
- DTC P0340: Camshaft Position (CMP) Sensor Circuit (3.5L "W" Body)
- DTC P0340: Ignition Control (Ic) Module Cam Reference Circuit-No Frequency (4.0L "G" Body & 4.6L "E" & "K" Bodies)
- DTC P0340: Camshaft Position (CMP) Sensor Circuit (4.3L, 5.0L, 5.7L & 7.4L "C", "G", "K" & "P" Series)
- DTC P0340: Camshaft Position (CMP) Sensor Circuit (4.3L "L", "M", "S" & "T" Series)
- DTC P0341
- DTC P0341: Cylinder Detect Signal Error-Too Many Pulses (1.9L SATURN)
- DTC P0341: Camshaft Position (CMP) Sensor Circuit (2.2L "J" Body & "S" Series & 2.4L "J" & "N" Bodies)
- DTC P0341: Camshaft Position (CMP) Sensor Circuit Performance (3.0L "V" Body)
- DTC P0341: Camshaft Position (CMP) Sensor Circuit (3.1L "N" & "W" Bodies & 3.4L "N" Body & "U" Series)
- DTC P0341: Camshaft Position (CMP) Sensor Circuit Performance (3.8L "C", "F", "G", "H" & "W" Bodies)
- DTC P0341: Camshaft Position (CMP) Sensor Circuit Performance (4.3L, 5.0L, 5.7L & 7.4L "C", "G", "K" & "P" Series)
- DTC P0341: Camshaft Position (CMP) Sensor Circuit (4.3L "L", "M", "S" & "T" Series)
- DTC P0341: Camshaft Position (CMP) Sensor Circuit Performance (4.8L, 5.3L & 6.0L "C" & "K" Series)
- DTC P0341: Camshaft Position (CMP) Sensor Circuit Performance (5.7L "F" & "Y" Bodies)
- DTC P0342
- DTC P0342: Camshaft Position (CMP) Sensor Circuit Low (2.2L "J" Body & "S" Series & 2.4L "J" & "N" Bodies)
- DTC P0342: Camshaft Position (CMP) Sensor Circuit-Low Voltage (4.8L, 5.3L & 6.0L "C" & "K" Series)
- DTC P0342: Camshaft Position (CMP) Sensor Circuit-Low Voltage (5.7L "F" Body)
- DTC P0342: Camshaft Position (CMP) Sensor Circuit-Low Voltage (5.7L "Y" Body)
- DTC P0343
- DTC P0351/1351
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.