speed4ever

I have gs430 and ineed to tune my car computer
i changed many thing it but no response.....
i need someone to help me thanks

Maxima3

Try some kinda piggy back ECU

evil00017

You cant really tune the stock ecu because it is locked/encoded. What you can do is buy a Air fuel controller and tune you air/fuel ratios. If you are looking for hp you can get some good hp out of doing this 1 guy got 16whp 42wtrq. His only supporting mod was catback exhaust.

sakataj

iTrader: (182)

have u ALSO tried unplugging battery and letting car re-learn? i know it wont do ALL the things your wanting but might help some