hey everyone i bought a 2004 gt 2 months ago and about a few weeks ago my check engine light came on. i took it to ford and they said my o2 sensors are "spliced" and it happened due to aftermarket long tube headers which are installed into the car. i am loosing A LOT of miles everytime i fill up my car. and so does the word spliced means its broken? someone was telling me to get some kind of mod thing that goes on the sensor to bypass it or something... so are my sensors broke or? please help me out.

thanks!

 

No. It just means the factory harness wasn't long enough to reach the new O2 sensor location. It may be a bad splice causing errant readings from the O2 sensors.

 

It means you are going to need to get O2 sensors with longer wires. And while you're at it, you may want to get some MIL Eliminators for those if you ever plan on running offroad pipes and a custom exhaust.