O2 sensor problem

SuBaRiNo · Post by **SuBaRiNo** » Sat Oct 22, 2005 6:27 pm

OK... as most know... took hatch for a little swim and killed the motor.

With the new engine in it has been running a little slugish on take off and i felt i would just wait for the ECU to tell me what the problem was.

Finally it has spat out the code for the o2 sensor. Now this has not been touched since the sinking. How does water effect these things? Surely it would have got wet with swamp water at some point.

Engine is an ej22... and engine light does not stay on all the time but the sluggish start during acceleration is almost every time.

Could it just need a clean with some electrical cleaner or is it likely to need replacing??

Thanks in advance.
Dave

Gremlins · Post by **Gremlins** » Sun Oct 23, 2005 10:11 am

I read somewhere ages ago that 02 sensors don't like coolant and it is possible to kill them if the car has a cracked head or faulty head gasket. Please note this only what I have read so cannot verify the accuracy of this info. Also they were talking about coolant, dunno if the same holds true for straight water?

SuBaRiNo · Post by **SuBaRiNo** » Sun Oct 23, 2005 9:01 pm

It's confirmed... it was busted. Water must have damged it... i have been throiugh a few of these now... there must be a brand of them that would be more reliable... maybe a genuine Subaru one.

Dave

BaronVonChickenPants · Post by **BaronVonChickenPants** » Sun Oct 23, 2005 9:28 pm

Would sealing the external portion of the sensor with a salastic of some sort help with your submarine attemtps?

Or are you avoiding submarine missions for the moment.

Jordan.

SuBaRiNo · Post by **SuBaRiNo** » Sun Oct 23, 2005 9:45 pm

Im avoiding all water... including not driving it in the rain if i can help it... im considering a custom rain coat made for hatchie.

Sealing it wont help dude... it's sealed when it's bolted into the exhaust... if it wasn't u could hear it because the exhaust would be leaking.

Dave

BaronVonChickenPants · Post by **BaronVonChickenPants** » Sun Oct 23, 2005 9:50 pm

Fair enough, I haven't got as far as playing with that stuff yet, all in good time

Jordan.

RYTONQ · Post by **RYTONQ** » Sun Jan 15, 2006 9:48 pm

how much was the new o2 sensor i got a ej20 in 99 gx liberty gen 3

tim_81coupe · Post by **tim_81coupe** » Sun Jan 15, 2006 10:59 pm

I organised it for him at a very special price... back when I could. He's running a universal 3 wire solder in jobbie, depending on the brand they should be available for about $50 to $100.

Craigus · Post by **Craigus** » Mon Jan 16, 2006 6:19 am

From: http://www.wps.com/LPG/o2sensor.html

What will damage my O2 sensor?

Home or professional auto repairs that have used silicone gasket
sealer that is not specifically labeled "Oxygen sensor safe",
"Sensor safe", or something similar, if used in an area that
is connected to the crankcase. This includes valve covers, oil
pan, or nearly any other gasket or seal that controls engine oil.
Leaded fuel will ruin the O2 sensor in a short time. If a car is
running rich over a long period, the sensor may become plugged up
or even destroyed. Just shorting out the sensor output wire will
not usually hurt the sensor. This simply grounds the output
voltage to zero. Once the wiring is repaired, the circuit
operates normally. Undercoating, antifreeze or oil on the
*outside* surface of the sensor can kill it. See how does an
Oxygen sensor work.

You need to be careful with silicones.