Information was taken from a program called ALLDATA. Some of you might know it, others never heard of it.
Troubleshooting Hints (The most likely causes for this code to be se are
-Volume airflow sensor failed.
-Injector failed.
-Incorrect fuel pressure.
-Air drawn in from gaps in gaskets, seals, etc.
-Heated oxygen sensor failed.
-Engine coolant temperature sensor failed.
-Intake air temperature sensor failed.
-Barometric pressure sensor failed.
-Use of incorrect or contaminated fuel.
-ECM failed.