Bilstienlib wrote:

It all started when my Check Engine light came on for the first time....I didnt have the money to get it looked at so I saved up and took my 98 RX to the local Subaru dealer and got them to check the codes. They found that the oxygen sensor was bad and wanted $600 dollars for a genuine one.

I went and got a 2nd hand one from the wreckers and got it installed by Subaru. 10 kms down the road, same problem. They said that O2 sensor is bad too "Get another one" they said.

So after saving more money I ordered one from Supercheap Auto and got it installed by the local auto electrician they told me to get the fault codes cleared from Subaru. But I didnt have the $50 required so I cleard the codes myself using this tutorial http://reviews.ebay.co.uk/How-to-read-a … 002365952.

I was cheering until the light came back on after driving for a while, the codes still reads O2 sensor.

So. What could be the problem you guys? Ive only owned this car for about 4 months and have had so mnay problems with it. I just really want to get it back to normal. Could something be fouling the o2 sensors repeatedly? I just got all oil leaks fixed.

Could that tutorial not of cleard the codes properly even though I got the 4 long flashes at the end? Could it be wiring somewhere?

it pays sometimes to check all the plugs wires and earth ect

if your in sydney, i'll scan it for free and let you know whats going on with the car via the scan tool...

Liberty GT '04 wagon.
I've had a CC flashing and engine light on for a while and no change in performance.  I decided to get it checked after ran battery flat charging my mobile for 10 minutes. The battery needed to be changed then, guess what,  o2 failure.  I bought an after market o2 sensor from hiflo.com.au. $60.  Mechanic replaced and tested it fixed fault. Unhappily after short time driving CC and Engine LIght came on but ECU would not hold the fault.  I then drove 200 km with car working perfectly. CC on all the way.  Wow success I thought.  Sadly as I left the freeway, returned to driving in traffic, it  FAILED!! I doubt it's the sensor as each time the ignition is off it the light doesn't come on???

Ok I got new aftermarket one and got it wired up. I took it back to Subaru when the CEL came back on and he goes "This ones fucked too, get another one". He showed me the scan tool and the signal from the O2 Sensor was barley registering.

He assured me that the O2 sensor is the problem and it is sheer luck that the replacement 2nd hand genuine one was stuffed aswell as the universal aftermarket one. I dont believe him. Any suggestions?

Nah mate he plug it in under the dash, How do i fix the bad earth, if this is the prob those bloody tossers have cost me about 300 dollars in fees and o2 sensors lol.

Bilstienlib wrote:

Nah mate he plug it in under the dash, How do i fix the bad earth, if this is the prob those bloody tossers have cost me about 300 dollars in fees and o2 sensors lol.

RX25SE wrote:

Bilstienlib wrote:

Nah mate he plug it in under the dash, How do i fix the bad earth, if this is the prob those bloody tossers have cost me about 300 dollars in fees and o2 sensors lol.

How many wires come out of the O2 sensor? What colors are they?

J

Ok guys I am still having this problem and Im bloody sick of it.

Heres the things I have tried:

Taken it to 2 auto electricians, both dont want a bar of it

Taken it to subaru, they wanna replace the oxygen sensor for like $400

Replaced O2 sensor twice by pros and once byself

Cleared computer

Left unplugged from battery for ages

Used a bottle of injector cleaner.

Only thing left to do is replace the spark plugs which im picking up tommorow from supercheap. Also how much are spark leads and how often to they need to be replaced?

Im gonna give her a service tommorow but im a bit of a noob.

Heres what ill be doing :

New air filter

New Oil fiter, fresh oil

Spark plugs

Check all fluids.

Check brakes

Is there anything more I should do?

Cleaned up

Cleaned up

Fantastic post mate. Took exactly what I was thinking and put it into words.