all 96-00 y7 use a 3 wire iacv located on the tb. obd1 ecu use a 2 wire iacv...the other car the ecu was tuned for already had the y8 intake manifold and 2 wire iacv. you need to get a 5 speed y8 intake manifold (auto y8 had 3 wire too) with the 2 wire iacv and the y8 tb without the 3 wire iacv. you'll need to do the 2 wire iacv conversion i attached.
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