P1222 GMC – Injector Control Circuit Intermittent

P1218 GMC – Injection Pump Calibration Circuit

P1214 GMC – Injection Pump Timing Offset

P1215 GMC – Ground Fault Detection Indicated

P1216 GMC – Fuel Solenoid Response Time Too Short

P1211 GMC – Mass Air Flow Circuit Intermittent High

P1212 GMC – Mass Air Flow Circuit Intermittent Low

P1203 GMC – Gas Mass Sensor Circuit High Frequency

P1201 GMC – Gas Mass Sensor Circuit Range/Performance

P1202 GMC – Gas Mass Sensor Circuit Low Frequency

P1200 GMC – Injector Control Circuit

P1191 GMC – Intake Air Duct Air Leak

P1188 GMC – EOT Sensor Ckt. High Voltage

P1190 GMC – Engine Vacuum Leak

P1186 GMC – EOT Circuit Performance

P1187 GMC – EOT Sensor Ckt. Low Voltage

P1185 GMC – Engine Oil Temperature Circuit

P1171 GMC – Fuel System Lean During Acceleration

P1164 GMC – HO2S Bank 2 Sensor 3 Rich or High Voltage

P1165 GMC – HO2S Cross Counts Bank 2 Sensor 3