In late 2001 the engine was fitted with Delphi common rail fuel injection and called the Duratorq TDCi (Turbo Diesel Commonrail injection), with the original unit being renamed the Duratorq TDDi (Turbo Diesel Direct injection). Although generally identical to the original engine, the addition of the common rail system meant power was increased to , with torque rising to . In 2002 the Duratorq TDDi was replaced by a detuned version of the Duratorq TDCi. Producing and , this unit used a fixed geometry turbocharger in place of the variable geometry unit used in the TDDi and TDCi.