I've got a brain buster of a problem w/my zx3

[badasstour]

ok yea right i had un hooked my o2 sensors on my contour and it ran like shit and only got like 14mpg so why dont you hook up your o2 sensors just to see what happens and you act like a little bug that needs to be smashed ha ha

[mr_tw]

just a thought but I have looked at aftermarkets ecu's for the Zetec and they do have an o2 disable feature, BUT it is for the second sensor, for people who run a race header (aka no cat) and it just simply keeps the light on the dash off, the first o2 sensor is still needed as people said to keep the air fuel mix right, maybe your right and your chip is not requiring it because it is ghosting a signal but thats not ideal because it dosent know EXACTILY what ratio to run knowing approx what ratio is good, but exact is better, remember, the sensor is there for a reason, and plus whats the harm in putting it in just to see what happens, there is nothing wrong with being wrong once and awhile, everyone has been, how do you think we learn all that we have? whats the worst that could happen anyway? ether nothing will happen or your car will have more power, (ps use a new one, that way you are gaurenteed that it hasent been fouled)