2000 Cougar Full 05 Taurus 3L swap. Anyone got any ideas? I'm scratching my head on this one... As is the tuner.
Finished the 3L swap and got the car tuned. Car runs great with the xcal2 plugged in. Made 208HP/204ftlbs, but once the tuner took the car for a drive he noticed it was running rough and wouldn't idle. Plugged the tuner back in, and it ran fine. Unplug it and it would stall.
You can get the car to idle if you give it some throttle, eventually the car compensates and runs. But backfires everytime you let off the gas... Any ideas?
Thanks, Tim.
Finished the 3L swap and got the car tuned. Car runs great with the xcal2 plugged in. Made 208HP/204ftlbs, but once the tuner took the car for a drive he noticed it was running rough and wouldn't idle. Plugged the tuner back in, and it ran fine. Unplug it and it would stall.
You can get the car to idle if you give it some throttle, eventually the car compensates and runs. But backfires everytime you let off the gas... Any ideas?
Thanks, Tim.