Originally Posted by
JEFASOLD
They are absolutely worthless, actually not even a "chip", just a resistor circuit that tries to trick the CPU to send more fuel. It doesn't work on on our really smart CPUs.
Have you tried it with our "smart" cpu's? Wife bought me one as a "surprise" when I first got the crossfire.. still sits in the center console .. researching these it "lies" to the system altering the air temp reading... "30 deg. temp..send more fuel" type thing ... mine was the fancy adjustable one.. performance or economy..
