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Diagnostic Trouble Codes
(note: the diagnostic trouble codes listed are the most likely
definition, some manufactures have specific codes for individual models. If the
trouble code listed does not apply to your vehicle consult a
Car Repair Manual)
P1000 - P1099 Numbered Code Identification Chart
P1000 Monitor Testing Not Complete
P1001 KOER Not Able To Complete, KOER Aborted
P1083 Fuel Control Mixture Lean (Bank 1 Sensor
1)
P1084 Fuel Control Mixture Rich (Bank 1 Sensor
1)
P1085 Fuel Control Mixture Lean (Bank 2 Sensor
1)
P1086 Fuel Control Mixture Rich (Bank 2 Sensor
1)
P1087 O2 Sensor Circuit Slow Response in Lean
Control Range (Bank 1 Sensor 1)
P1088 O2 Sensor Circuit Slow Response in Rich
Control Range (Bank 1 Sensor 1)
P1089 O2 Sensor Circuit Slow Response in Lean
Control Range (Bank 1 Sensor 2)
P1090 Pre-Catalyst Fuel Trim Too Lean Bank 1
P1091 Pre-Catalyst Fuel Trim Too Rich Bank 1
P1092 Pre-Catalyst Fuel Trim Too Lean Bank 2
P1093 Pre-Catalyst Fuel Trim Too Rich Bank 2
P1094 O2 Sensor Circuit Slow Response in Rich
Control Range (Bank 2 Sensor 1)
P1095 O2 Sensor Circuit Slow Switching From
Lean to Rich (Bank 1 Sensor 1)
P1096 O2 Sensor Circuit Slow Switching From
Lean to Rich (Bank 2 Sensor 1)
P1097 O2 Sensor Circuit Slow Response after
Coast Down Fuel Cutoff (Bank 1 Sensor 1)
P1098 O2 Sensor Circuit Slow Response after
Coast Down Fuel Cutoff (Bank 2 Sensor 2)
(note: the diagnostic trouble codes listed are the most likely
definition, some manufactures have specific codes for individual models. If the
trouble code listed does not apply to your vehicle consult a
Car Repair Manual)
Look up Trouble code questions in our
Car Repair forum section.
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