#News

The Jeep Compass 1.6 multijet 120hp is a car that has found a fair amount of success. It's available with an array of different engines, but today we are talking about the diesel 1600 that uses a customized version of the Fiat-derived 4-cylinder common-rail, with four valves per cylinder and 120hp maximum power.

This is the W222 version produced since 2013, with a nice 3-liter common-rail V6 engine that has a lot of new technology in its engine management and power supply. The engine is one of many variants of the 2987cc with 6 V-cylinders, four valves per cylinder, a variable geometry turbocharger placed between the cylinder banks, and an intercooler.

These pumps already had some electronics built into the mechanical body, from which four wires led out to two solenoids controlled in PWM by the same electronics. The control of the injection pump by the ECU (at least in the more complex versions) was handled via CAN-BUS (Controller Area Network). This was a standard bus protocol used predominantly in the automotive field. We have two additional chip tuning models for this type of pump.

On the VP37 electronic rotary pumps, there are major differences. The EDC controller decides the timing, or phase, which operates in PWM to control an electro-hydraulic actuator that shifts the injection phase. The timing is no longer tied directly to the engine speed alone, but the ECU decides (based on the internal mapping contained in the EPROMs) which timing value to hold.

Specifically, we have developed a chip tuning unit for the 150 hp BMW 318d able to manage the amount of diesel injected by the common-rail system and the boost pressure that is electronically controlled on this engine as well. The power increase on the BMW 318d G20 is +30 horsepower and +55Nm of maximum torque.