1997 Buick Park Avenue

Just changing the engine would have no effect on the security system. What else did you change with it?
Is the security light on or flashing?

I've also Changed The Computer System and ignition. The security Lights Is flashing. Do i have to reset the Computer with the keys.

I've also Changed The Computer System and ignition. The security Lights Is flashing. Do i have to reset the Computer with the keys?

PASSLOCK 10 MINUTE RELEARN


AUTO LEARN
Time required, approximately 10 minutes:

1. Insure that the battery is fully charged.
2. Use the scan tool in order to clear the DTCs.
3. Turn the ignition switch from the OFF position to the CRANK position attempting to start the vehicle. The vehicle will start and then stall.
4. Leave the ignition switch in the ON position while observing the security indicator.
5. When the security indicator turns off, which can take up to 10 minutes, turn the ignition switch off. Wait 10 seconds.
6. The BCM and the PCM will learn the new code on the next start attempt.

Where can i get Scan Tool ? or do i have to send it to a shop to get done?

Don't worry about the scan tool. That is just to clear the codes. You can just disconnect the battery to do that or they will eventually clear on their own.

I will get back to you and let u know how everything works out.



Thanks.

I've done everything u tolded me to do and i even reset the computer and it still won't start. What can i do to fix this problem?

There's nothing that your equipped to do at this point. You need a Tech2 scanner and you'll only find that at the dealer.