There are far more sophisticated options available today. Their primary advantage is cost, with good options available for around the $1000 mark, although some brands cost substantially more. Most brands (even the well known ones) are made by a single company and rebranded, which is obvious when you look at the casings. Rail chip technology was developed in Europe in the late 1990s. Obviously, because of this single connection, the only thing they can control is fuel pressure. If a chip only plugs into the fuel rail pressure sensor, then it is one of these chips.
Fuel rail chips can be identified by the way they are attached to the engine. Unfortunately, there are one or two fuel rail chip manufacturers/dealers who grossly exaggerate the capabilities of their products, and even claim that their chips are 'interactive' with the ECU. These ‘rail chips’ typically have a rotary dial, a pin jumper or a few buttons on the device to control how much the fuel pressure is varied. They do not (and can not) control fuel injection timing or boost, despite claims to the contrary by some manufacturers. This can result in more power and/or better economy. They operate by interfering with the signal between the common rail pressure sensor and the ECU, causing the ECU to demand an increase in fuel pressure. There's a large range of options available, varying in sophistication, mode of operation, price and results:įuel rail pressure chips:The majority of brands on the market are ‘rail chips’. Installing a Performance Chip or conducting an ECU remap (AKA Reflashing) are essentially two ways to achieve a similar outcome: Improve the performance and/or fuel economy of the vehicle. Performance Chips, Diesel Chips, 'Pedal' chips and ECU Remaps
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