2002 Ford Mustang GT Auto, Trickflow intake, Built Trany(JMOD, Spiral Lock, 2600 Stall, etc.)
So I made a newbie mistake and disconnected the ECU without disconnecting the battery, (I was installing tuning equipment) I burnt up injector drivers on the ECU and car wouldn't run right when everything was reinstalled. I bought a used dash, key cylinder and ecu and the car crunk up and ran perfectly fine, just to find out when I go to drive it that it stays in gear unless you shift it from 1>2>D, but when it goes into drive it instantly shifts to OD and if you aren't high enough rpm it'll stall out. (The car is an Automatic) Did some research and the ECU I got was meant for a 2003 and not a 2002, so I went on EBAY and ordered the exact same ECU (box code, tune code, everything) installed it today, along with the original dash and key and it still has a dashed line and will no longer start. Hooked up the scan tool to reset the parameters and relearn it and it didn't communicate. All fuses are good, power and ground to the ECM is good. I'm confused why this is a problem now when it wasn't when I got the used set and hooked it up. Any suggestions?