uNPLUGING O2 SENSORS

[RICK MASON]

I HAVE 1997 DISCOVERY 4.0 AUTOMATIC 179000 MILES AFTER IT WARMS UP
IT DON'T WANT TO RUN I THINK IT IS BEING CAUSED BY THE HEATED 02 SENSORS
DOES ANYONE KNOW HOW TO DISCONECT THEM?

 

[joey]

I don't think that is your issue, but you can just follow the wires to near the top of the engine by the firewall and disconnect them.

Be prepared for extremely bad fuel economy and a check engine light. Also if you still have CATS the should clog nicely in less than a week.

 

[Disco Mike]

Do you have any codes, what are they?
You can't unhook the 02's, your engine will run full rich, in open loop, all the time and trash your cats, cause bad mileage and lack of power.
Go fix the 02 problems. Are the 02's new, ever been replaced?

 

[RICK MASON]

I was getting codes for 02 sensors but that was probably because it was missing so bad!
Here Are The Codes I'm Getting 1. P0307 2. P0340 3.p1137 Pending
4. P0300 Pending 5.p1316 Pending.
It Runs Great Until It Warms Up The Cooler It Is Outside The Longer It Will Run Good!