grayis250

i just bought this car and i like to have it tune . do i need a fuel management set up or it can be tune with stock ecu trough obd2 port ? i think the car is running very rich now. the car is idle fine but when i give it a rev it will die out
please help
thanks

MyLittleIS

could be related to a bad throttle position sensor as well..... does it increase rpm when you ease the throttle up??? is the exhaust smell seriously rich??

grayis250

i think my air flow meter is bad so i will replace it this weekend and see ,thanks for your reply

grayis250

the still does the same thing with different air flow meter

mitsuguy

iTrader: (2)

there are no reliable ways to tune that... there are piggy backs, but they are a bandaid and few are happy with the results...

standalone EMS is the way to go

grayis250

should i just get the us is300 engine harness and ecu instead of jdm ecu and harness?the car is started and idle really great but it is smell rich though and no check engine light .is the obd2scanner can read the jdm ecu ?
thank you for your time

grayis250

i replace my old tps sensor with a brand new one but the problem still there

nickkm

mafff?????

grayis250

can i by pass the air flow meter with stock ecu ?