EL 129 for a complete list of e.f.i. harness connectors for the turbocharger model, And page EF&EC 6 for eccs component parts location. there's also the wastegate actuators but when you get a boost controller you juest disconnect those anyways, And the stock nboost sensor is no good, youll probably get an aftermarket boost gauge as well. so theres not much there to worry about.