Throttle Body: Removal
WARNING: This page is about a different car, the 1995 Lexus SC 300. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect negative battery cable. Drain cooling system. Disconnect throttle cable(s) from throttle linkage. Remove air cleaner hose. Remove throttle body bracket. Disconnect vacuum hoses and wiring harness connectors as necessary. Disconnect 2 coolant by-pass hoses from throttle body. Remove throttle body and gasket.