Tuesday, May 13, 2008

Hack your vehicle for a tune-up

Your vehicle always needs to look and perform well. This is the reason why car owners consider using different kinds of accessories and gadgets that will not only improve the vehicle’s performance but also the looks. In older years, the most common modifications used is the installation of bigger air intakes, exhaust pipes, and carburetors. All these became famous since it only requires simple hand tools during adjustments. During 1980, the control of the engine has slipped out because of computers. Yes, when computer has started to control most mechanisms, about 90 percent of muscle car tuners were left in the dark.

However, a new breed of mechanics was introduced in the market. this allows computer nerds to hack the program of the electronic control unit of the vehicle. In fact, a software engineer named Wayne Schroeder who loves to race his souped-up 2003 Acura RSX has paid the Hondata Company to modify and reprogram his vehicle’s engine control unit so he can electronically tune up his car to work with new parts without a hassle. Actually, you cannot expect it to work at its best unless the ECU of your vehicle is replaced.

I am sure you have noticed that even a factory car may run differently with computer tuning especially when the vehicle is equipped with a turbocharger. Yes, it only means that vehicles are designed to be aggressively prepared during its manufacture.

Actually, the first hack was made by opening the engine-control unit and examined the gibberish of computer code on memory chip that is called the Epron or the Erasable Programmable Read-Only Memory. Here, you have to reverse the engineer literally by going in and changing the code. Then after you have to start up the vehicle and check what it can do. Finally, they had discovered the engine maps. This tells instructions that denote what the vehicle should do when the engine is running faster. In a high-performance map, the mixture of air and fuel can be altered to allow more power to be produced upon igniting. Actually, the stock engine that is used in the vehicle is not program in such a way since automakers do not work on programming the engines since this can cause trouble to the vehicle’s performance.

Tuning up means that you should consider the worst-case scenario so even if you tell them to use a 91 octane, still there are some car owners who might consider using 87 octanes. With such case, an early spark then could happen, which causes the lower-grade fuel to explode prematurely and lead to knocking. Knocking can cause more serious trouble to the engine, leading to its break down.

The first generation computer-controlled vehicles were tuned up using chips that use new engine maps. But because these chips were hard-wired, this was replaced during 90’s with Epron chips that use rewritable flash memory like the ones used in digital camera. In addition, a data port is used in all cars to meet the environmental laws of the US. This allows inspectors to access the engine-control unit and assess whenever the engine is working well. Through the use of computer, hackers can download engine maps from the ECU memory and chance them without the need for any mechanical tools. Today, car hackers are also using the internet to trade maps online. There are also other forms of car-hacking sources from different companies like Dinan, Hondata and Works to internet with the aid of user groups like the PGMFI.org and openECU.org. Both offers a publish information free. With all these, it only appears that car improvements play a big part not only in vehicle maintenance but also for personal objectives.