Question about 1995 Buick Park Avenue

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Where is the ecm computer and directions for replacing it

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I replaced my computer on a 95 Ultra. It is up under the dash behind the glove box next to the fire wall. There are three large connectors attached to it each about two inches wide. It will be easier if you remove the glove box to access it. Make sure to disconnect your battery before you pull the unit. There are two snap connectors you will have to carefully dislodge form the ecm with a flat screwdriver for it to come loose. Have patience and when you get it out make sure that you remove the little chip inside the unit under the little panel with screws. When you get the new unit install your old chip inside of it and repkace the small panel. Install is the reverse of above. The old chip is specific to YOUR CAR. The new computer won't work without it. I got a reman ecm @ Auto zone for about $110 exchange. Good luck!!!

Posted on Sep 18, 2010

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