Second Genaration Campro

The Campro IAFM (Integrated Air-Fuel Module) is essentially a basic DOHC Campro engine equipped with a variable-length intake manifold, developed under a joint fast track programme which began in April 2005 by EPMB, Bosch and Proton. However, the IAFM differs from the VIM (Variable Inlet Manifold) for the Campro CPS engine in terms as follows:

1. The IAFM is a stand-alone module that can be fitted with a basic DOHC Campro engine whereas the VIM needs to work in conjunction with the CPS system in a Campro CPS engine.
2. The IAFM is operated by the engine vacuum while the VIM uses an ECU-controlled solenoid.

The Integrated Air-Fuel Module for the Proton Campro engine debuted in the second-generation Proton Saga, which was launched on 18 January 2008. We first heard of it back in October 2006 where it was still in advanced tooling stages, and ever since then everyone has been eagerly awaiting for the first Campros to roll out with the new air fuel module.

With the IAFM, the 1.3L engine used in the Proton Saga now produces 98 bhp (73 kW) @ 6,500 rpm. The maximum torque is slightly reduced to 113.2 N·m (83.5 ft·lbf); however, the engine has broader torque range and the noticeable torque dip in the basic DOHC Campro engine has been eliminated. However, the official brochure is only published with the familiar 94 bhp (70 kW) @ 6,000 rpm power and 120 N-m @ 4,000 rpm torque for consistency with other 1.3L Proton models.

Meanwhile, the output of the 1.6L version of the IAFM engine which debuted in the 2008 Proton Gen-2 M-Line produces 110 bhp (82 kW) @ 6,500 rpm of horsepower and 148 N·m (109 ft·lbf) of torque, and the torque dip around 2,500-3,500 rpm has been eliminated.