Normal
Actually I think there is method to tune by using computer, which is by changing your ECU hardware and software, but this is very depend on the individual knowledge of elctronic component and software of the ECU, which you change the mapping of the ECU programe and modify original the A/F ratio setting to get the desire result you want. Howeve, I don't know whether there's anybody in Malaysia having such skill adn tools to do so, but I know for Honda car, especially at other country which changing the ECU is quite commond, you may just download the software, plug your PC to the ECU and start modify it. Here I share a link of how people tune their Honda car, I believe there should be a similar website to teach how people to tune their Toyota.http://www.pgmfi.org/twiki/bin/view/Home/WebHome
Actually I think there is method to tune by using computer, which is by changing your ECU hardware and software, but this is very depend on the individual knowledge of elctronic component and software of the ECU, which you change the mapping of the ECU programe and modify original the A/F ratio setting to get the desire result you want. Howeve, I don't know whether there's anybody in Malaysia having such skill adn tools to do so, but I know for Honda car, especially at other country which changing the ECU is quite commond, you may just download the software, plug your PC to the ECU and start modify it. Here I share a link of how people tune their Honda car, I believe there should be a similar website to teach how people to tune their Toyota.
http://www.pgmfi.org/twiki/bin/view/Home/WebHome