essex boy

Can anyone help? Ive just fitted an LS7 engine out of a 2006 corvette to my AC Cobra using a GM performance stand alone harness and ecu, started the engine up a couple of times, it ran fine, but now it start's ticks over fine but will not rev. The throttle gate doesn't seem to be working. I have two foot peddles, I have swapped these to check that the foot peddle is ok and it has not made any difference, and checked that all the cables/connectors are ok. Can anyone help?
Thanks Mark

pdsq98gt

You need to scan it for codes. There will probably be a code set causing it to go into reduced power mode.