Looking for MAF

[Skylerr]

Ya one of my buds had it on his yaris but got rid of the car and gave it to me to try out

[CTScott]

Originally Posted by Skylerr

Ya one of my buds had it on his yaris but got rid of the car and gave it to me to try out

All that those boxes do is to fool the car into thinking that the air is colder than it is to make the ECM add more fuel. The effect will only last for a drive or two due to the closed loop control by the ECM, whereby it will trim out the excess fuel when the AFR sensor sees that the output is rich.