Originally Posted by J0EC00L
Did you use the SPI ECU or did you change to the Zetec ECU?
you have to use the zetec computer cuz that controls the zetec motor. i researched it and the trans are the same and everyone told me no there not the same but if you try to order a new one for either engine it gives same part number sdame exact commponet. i used my spi trans and car runs 100% perfect shifts smooth just like it did before the swap. you have any questions on your swap pm me.