Hi guys,
just came back from the small dyno day around my area, tried to get the AFR from this dyno .. and end up with the paper without the AFR reading.. talked to them and they said " my exhaust pipe is too big, and no pressure at the back and oxygen is cool down.. and so on..
i saw it when my car was running on the dyno and my car lean out.. that's why i need it for the retune/remap..
is this true or they dont know how to get the read out on the paper?
waste my time/money