I am a first time Jeep owner and have just bought a 2002 TJ wrangler, 5 speed manual. I got it quite cheap as a non runner. The previous owner sold it non running because someone had tried to steal it and broke the immobiliser. I am looking to replace the immobiliser and ECM/ECU all as one unit with a new key and ignition barrel. Will the ECM from any 2002 4.0litre manual wrangler be fine? Hoping to get her on the road and out on some dirt tracks soon!