Problem with the RX7!

[TRex]

Right with more info, I am sure you hit Fuel cut from over boosting...
The T2 suffers from boost/fuel cut  as soon as you crank the boost... and it comes on rather violently and Harsh.. :eek
 This could cause problems... if your engine is not strong..

 So it now looks like 2 things.   You are in a limp mode with the ECU.. or  unfortunatly it sounds like internal damage..(which it really sounds like to me)

 If you are desperate, I am not too far from you and can possible pop round to have a look at it for you sometime next week...