Could I have fouled my o2 like this?

[lolcantturn]

I was running without my o2 connected for about 800 miles. I'm getting an o2 code even after 1200 miles plugging it back in and resetting the battery to clear the code. Could it have fouled out that way?

[jlevie]

It is doubtful that you fouled to O2 sensor.

Understand that the O2 sensor is a scheduled maintenance item with a replacement interval of 100k. If that applies, replace the sensor.

A Lambda fault (if that is what you have) can be the result of a bad sensor, or it can mean that the A/F ratio is off. The most common cause of an upset in the A/F ratio are intake leaks, which can only really be diagnosed by a smoke test of the intake. The second most common cause is a problem with the fuel system or injectors. There are other possibilities, but those are the places to start.

[dnick]

kind of on topic... where the charcoal canister hooks up to the TB, if you dont have it hooked up, that can be a big intake leak correct? m50 swapped.

[ScHpAnKy]

kind of on topic... where the charcoal canister hooks up to the TB, if you dont have it hooked up, that can be a big intake leak correct? m50 swapped.

no, if you are you talking about the breather hose for your gas tank, it's there to relieve pressure from being created at the tank and for the vapors to enter the intake and burn again.

[MR 325]

kind of on topic... where the charcoal canister hooks up to the TB, if you dont have it hooked up, that can be a big intake leak correct? m50 swapped.

no, if you are you talking about the breather hose for your gas tank, it's there to relieve pressure from being created at the tank and for the vapors to enter the intake and burn again.

The answer is YES. The port is connected to the throttle body, if it's open there will be a vacuum leak.

[dnick]

The answer is YES. The port is connected to the throttle body, if it's open there will be a vacuum leak.

ok thanks! so i guess ill just find that canister and connect it back and i should be all good right?

[LJ851]

ok thanks! so i guess ill just find that canister and connect it back and i should be all good right?

Or just put a cap on the open port.

[dnick]

Or just put a cap on the open port.

Yeah Ill prob just do that.
Thanks!

[trackjunkie21]

Check the injector harness ground, remember the problem before?;)