Hi, I have checked my ECU error codes and its coming back with 32 : Oxygen Sensor.
Have done the ECU reset procedure and the error is still there.

Any advice on what effects this may have to the running of the car.
Its a MY00 Turbo, the only mod being a Prodrive Backbox - Could this be the cause? - and hence is this really a problem or just something different for the ECU to deal with?

Thanks for any advice, Carl.....

 

Lambda sensors only have a service life of 30,000 miles / 3 years, so nothing to worry about! The effect is that the car will run rich when on cruise, so your fuel economy will be even worse than usual

 

Cheers nom, put my mind at ease.

Now then, Firstly, I have the extended Subaru warranty on the car – should this sensor be covered under it for a dealer fix even though I’ve fitted the Prodrive Backbox.

Secondly, Am I ok to tell the dealer I have been plugging plugs in and reading the ECU codes or is he gonna ban me from the dealership for life and rip up my Warranty for doing so and for modding the car (Only a Subaru Recognised backbox !!)

 

Not at all sure what the situation would be with a lambda sensor - it should be noted as a 'consumable', hence not covered, but there is no point in the service history that it's noted to be changed or even checked, so Subaru don't seem to consider it a consumable.
So no idea!
But - I think - there wouldn't be a problem with reading the codes! It is what they're there for, after all! But if you think they might be going to be difficult, I'd tell them that the fuel economy has suddenly gone bad & you have heard/read/whatever that this can be becuase the lambda has worn out. Then see what they do... They should plug in the select monitor, tell you what you already know & change the lambda over

 

Thanks again nom, more great advice – just what I wanted.
Its due a major service soon so I’ll speak to the dealer then and ask them to check the ECU codes as a favour !!

In the meantime has anyone had these replaced under warranty?
Thanks, Carl.

 

Just had mine replaced, obviously not on warranty car is far to old. But what a difference it made, even out of warranty its worth every penny spent.

 

Having mine replaced today along with MAF sensor, all covered on extended warranty!

 

Thanks for the replies guys,

Moo: How did the dealer pick up the lambda as being faulty? – did you take it in with an obvious fault which pointed to the sensor?

Mark: What difference did it make to the running of the car?

Cheers, Carl...

 

Carl maybe I can answer both.
The lambda caused rich running pre boost leaning off to somewhere near normal on boost. On a journey after a prolonged constant speed say 90 or so if you dropped down to 2900 revs she would splutter until boost was reached and then all would be fine. In the latter stages the thing would splutter at all speeds but only when very warm.
The ECU may not pick up a fault because the sensor/s may be giving a reading but it won`t be the right one. The ecu thinks because its getting an inpout everything is ok so no fault shown.
Of course they also go completly **** up and then you get the fault code.
The garage I took it to were not sure either but as the lammy works hard pre boost and thats where the problem was it seemed the most common sense option.

Mine overall is a much more pleasent beast to drive,smoother at lower revs, less jerky and erratic and a lot less smelly in the morning(unlike myself). It has cured the worst aspect of what I thought was the side effects of impreza ownership.

regards Mark

[Edited by wrxmark - 9/18/2003 5:54:59 PM]

 

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[Edited by sammyh - 9/18/2003 6:09:36 PM]

 

Cheers Mark,
I can’t say I’ve noticed anything wrong with my car at all, hence my asking for your symptoms (with the car that is !!). Another great reply – I know what to look out for now.
Curiosity just got the better of me with the ECU code check thingy and it came back with the Oxygen Sensor fault.
I guess I’ll get the dealer to check out the fault codes at the next service and go from there.
Thanks for the replies, Carl.

 

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