The difference is basically the age of the techniques used to obtain the cars “map file”. Now days you are very unlikely to get your car “chipped” due to the evolution of electronics and chips themselves. Basically, chip tuning is on older approach while remapping is a more modern approach. Chip tuning or most commonly known as “Chipping” is the old way of increasing a car’s performance and economy, used on cars built before 2000. ECU remapping is the modern term, and the modern way of doing the same thing chipping does for older cars. Remapping a cars ECU is carrying out the same process as chip tuning, but does so without actually chipping the car. All cars built before the year 2000, to modify a car you would physically be opening the vehicle’s electronic control unit (ECU) and taking out the chip (Eeprom) to manually tune and reconfigure the engine map file, and then replacing it into the car, usually via a soldering method. This procedure is allot riskier than remapping, but no problem for a skilled chip tuner.

EGR valves help all cars run more efficiently and completely burn fuel by recirculating a portion of your exhausts emissions and running these emissions through the combustion process again. This process results in a more complete burn of fuel, which then decreases your cars noxious emissions by prohibiting the release via the exhaust of some harmful gasses.

Why Do EGR Valves Fail?

The EGR is designed to open and close (normally electronically) at certain times through the rev range, but these valves get clogged up with carbon deposits, which can make them a fail, or even get stuck altogether either open or closed. Every engine is different but symptoms can vary from poor idling speed, knocking, loss of power, engine unresponsive, black smoke from the exhaust pipe, and the engine management light coming on. If not dealt with, this can lead to turbo damage, a very expensive part when compared to the cost of an EGR replacement. Some theories of failure range from, poor-quality electronics used by some manufacturers to the extended service intervals now in place. Should you experience any of these symptoms, contact us we may have the permanent answer to these re-occurring issues.

The electronic control unit (ECU) used in today’s cars and trucks is used to control the engine and other components’ functions. An ECU is a computer with internal pre-programmed and programmable computer chips that is not much different from a home computer or laptop. The vehicle’s engine computer ECU is used to operate the engine by using input sensors and output components to control all engine functions. ECUs come in many different makes,shapes and sizes. Here is a list of the most popular ECU brands used in UK cars.

• DELCO
• DELPHI
• EEC V1
• FORD
• JOHNSON
• MARELLI
• MELCO
• MITSUBISHI
• SAGEM
• SIEMENS
• TRIONIC