1998 Buick Riviera Just Put Junk Yard Motor Out 2000 Runs Fine Couple Seconds

1998 BUICK RIVIERA
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MAJORMILER
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Just put a junk yard motor out of a 2000 in and it runs fine for a couple seconds and shuts down starts right back up shuts right back down. No codes no security light any ideas
Feb 8, 2013 at 5:12 PM
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JDL
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Usually when you swap motors, you get the computer from the donor vehicle and use that computer. I don't know if the 98 and 00 use the same computer. Can you communicate with your computer?
Feb 8, 2013 at 5:58 PM
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