Ya thats what we thought but it is new from ford

we are trying a computer from one of our other cars

Hi I am wondering if anyone has had a problem with their mustang surging at idle after installing Vortec Supercharger with a black delta chip.

we have a 2000 ford mustang Gt 4.6 and have a surging problem only at idle only when car is in gear and we have theA/C on or the Blower on high. We have ...