well I hope you got the wiring harness and the computer for the p1 and if you have smog, the engine is likely o fail. you need to go newer, not older, and the computer for the 01 may not work right with the 03 newer models typically have computer upgrades that are not necessarily compatible year to year. did you ask the wrecking yard? they should know exactly what you need adn hooked you up with that beforehand. best of luck I hope it works out. please do some more research.