Re: Worlds Cheapest V8 Swap
Looks like the problem is in your ECU - ECM.
Limp mode is a security function for your engine. When the engine has recognized a serious faulty parameter from the engine, the car will go into limp mode. The limp mode does often reduce the power and limit the RPM of the engine so you can drive your car to a workshop without damaging the engine
From Google search but I guess you know that.