i could really use some help.

[jj99993]

I have a 1997 chevy cavalier. it is my first car and i love it to death. the problem is that it will not run unless i have a code reader plugged in to it. when the code reader is plugged in everything works fine and she runs great but if i unplug it while it is running all of the dash lights will come on (oil, battery, airbag, etc...) and the heat and a/c dont work. if i unplug it before i start it the car will simply turn over and then shut off. i have changed the cam and crank censors, the air bag computer and the pcm. does anybody have any ideas?

[450HP]

Have you tried pulling the codes from the computer?

Scott

[jj99993]

i tried to but the code reader isnt actully showing any codes at all.

[dugan50]

Without first hand diagnostic capabilities, my guess would be the problem lies int he Passlock antitheft system. Once you get it running, attempt a bypass on that system. It's not that hard if you check out this website and follow the instructions.
http://www.the12volt.com/installbay/...18&KW=wlmpwlmp

[jj99993]

thanks for the idea, i will give it a shot