I've got an annoying hesitance between 1700-2000rpm in 2nd gear (90% of the time) as well as between 2000-2500rpm in 1st (50-60% of the time). I've had two different MAFs on there so thinking it's the lambda sensor next. Car is Bob Rawle remapped running decat, Walbro, NGK '7' heat plugs (standard TD04). No smoke as I can see, either blue, black or white and boosts fine. But think she's running rich as the MPG isn't great - 18-20 around town.

I've seen other places selling lambda sensors (3 wire I need) - but none genuine ones - for a lot less than the £160-170 for a genuine replacement.

Has anyone run one of these without issue? If so, how much and where from? Are they to be avoided on modified Impreza's? I'm not skimping, more so justifying the cost from a dealers etc.

Thoughts welcome (I have considered a 2nd hand working one for the process of elimination).

Andy

 

I fitted a non genuine a few years ago and still all ok. It came with the correct connector but I can't remember the make, I'll try and find out for you

 

IIRC Euro car parts do good ones for a reasonable price, though not sure if they are genuine?

 

http://www.lambdasensor.com/

 

Thanks for the links guys. One with the correct connector would help but soldering could be done at worst, or different connectors.

If its a good part that would last? That's my question against the genuine ones as the prices seem very different.

 

I bought a sensor from Just Lambda last year around this time, genuine DENSO sensor identical to the one that came out of the car in every way which was also a DENSO sensor. cost £73.00 incl VAT and post as opposed to £140.00 from Toyota. DENSO are std. fit for a lot of Jap stuff

 

have used just lambda for years an all my cars and get the bosch ones.never had one fail and lot cheaper than oe ones.

 

On the Just Lambda website, for the part number 22690-AA321 it's giving their own brand Zirconia sensor for £66.00 delivered. Seems a good price but it's not a Bosch or Denso one. Is this something to be concerned about should one be purchased?

 

It will come with a years' warranty! I was recommended to that site by a full-time mechanic i know who works on our cars so have no qualms in recommending them. Give them a call if you are unsure, i found them very helpful.

 

Thanks Paul, the recommendation helps when buying 'blind' so to speak.

 

18-20mpg is about rite mate my blob sti averages 18mpg