mpg drop
If not you can pull your center console and the shifter cover and reach them quite easily. Of course you have to drill out the rivets....and replace with either rivets or self taping screws.
Okay so everything has been replaced it wasn't as hard as I thought or made it out to be after starting the truck I through 17 codes all missfires and o2 related now I cleared them ran the truck 30 seconds reving up and down nothing has come back
there is a random rattle at times now
update: when I rev and it revs back down there is a gurgle
there is a random rattle at times now
update: when I rev and it revs back down there is a gurgle
Last edited by ninjaff21; Jun 5, 2014 at 02:14 PM.
after driving sensors have no activity and heater circuit problem
bank 1 sensor 1
bank 2 sensor 1
are those pre or post cat
All of the sensors under live data show voltage of .8
bank 1 sensor 1
bank 2 sensor 1
are those pre or post cat
All of the sensors under live data show voltage of .8
Last edited by ninjaff21; Jun 5, 2014 at 02:48 PM.
You are absolutely crazy to run around with bad O2 sensors.
You want to ruin your cat converters?
You are my friend ON THE WAY to doing this.
ALL the gas that is dropping the MPG is going into the cat converters and superheating them.
Please STOP driving it and fixing it.
You are also polluting the environment more.
Sorry to be harsh - but this is true.
You want to ruin your cat converters?
You are my friend ON THE WAY to doing this.
ALL the gas that is dropping the MPG is going into the cat converters and superheating them.
Please STOP driving it and fixing it.
You are also polluting the environment more.
Sorry to be harsh - but this is true.
Will the engine operate as efficiently? No, hence the reduced mileage. Will it pollute more? Quite possibly, especially if it's an older engine where the fuel trim is compensating for engine wear or sensors that might be slightly out of calibration. But is it going to grenade your cats in a short time? Heck no.
If the O2 sensor is getting oil on it, it's probably the valve cover gasket(s). The oil leak is hard to see, but it drips right down onto the cats (especially the passenger one). This was exactly the case when my VC gaskets were bad. If you smell a burnt oil smell after a long drive, this scenario is likely.
I wouldn't expect to see more than a 10% reduction in fuel economy due to a bad O2 sensor. If it's significantly lower than that, you may have other problem(s).


