Search the Community
Showing results for tags 'lambda sensor'.
Hi everyone, Hoping for some wisdom regarding the above. I'm helping a friend (who isn't really a car person) to fix his 2001 Subaru Outback 2.5. We've ascertained that it needs a new lambda sensor, but I'm struggling to find a replacement. I can see there are two sensors going into the section of the exhaust that contains two catalytic converters. There is one that goes in end-on, and seems to run pre-cat. And there's one that goes in from the top, after the first cat. It's this one that is the issue - the car hesitates and splutters a lot, and won't rev, unless you unplug that sensor. My confusion relates to the following... The sensor that needs to be replaced is a four-wire sensor, but when I look on eBay for matching parts I only get three-wire sensors come back. What's all that about? Does anyone know what other sensors (i.e. from other cars) are a match, technically? I found one intended for various Fords and Volvos that looks identical apart from the plug. The only Subaru sensor I could find that has the right connector is this one - https://www.ebay.co.uk/itm/142804741377 - but that is not listed as matching this car, and is also described as a front sensor - presume ours is a rear sensor? I'll try and add some pics here so you can see what we've got. I'm pretty certain it's original as it was a one-owner car from an old couple, and doesn't seem to have been fiddled with. Would be very grateful for any advice you can offer!
I have looked and I know I should get the problem diagnosed properly. However, short of cash, I pay someone I can't afford the part, so I thought I'd ask for advice first... Travelled 300+ miles from Cornwall to Kent at the weekend in my Bugeye GX. No problems at all travelling down there until I was parking the car at the other end and the CEL came on (steady, not flashing). Drove back to Cornwall on Monday, no problems - no noises, no loss of power or anything, no affect on fuel economy, etc. I did a bit of research on here and other forums/sites (came across this page; http://www.samarins.com/diagnose/common-check-engine-light-problems.html) and the first probable diagnosis is the Lambda Sensor. Based on the info I've read - no loss of power, no stalling, idles well, etc, etc - is it worth paying out £40 for a new Denso Lambda Sensor first, without getting it diagnosed? I can always sell on the sensor if it doesn't solve the problem. Alternatively, anyone in West Cornwall with the right kit to diagnose for me... coffee and biscuits a-plenty on offer :o) Thanks
Hi folks, Well, I was driving home and a wee light that looked a lot to me like an alternator came on, so I stopped into Farmers to get it checked out. Before going in I checked the handbook and it said 'Failed indicator light', so I took that literally and checked all my indicators were working, even the brake lights <sigh>. I wish I wasn't such a diddy when it comes to cars, I suppose at least the guys in the garage get to point at me and laugh One of the guys came out with the engine management testing device which said 'failed lambda sensor'. He cleared it but it came back on. I wonder if any of you can answer my questions. The last three times I went to fill up they only had regular unleaded and this beastie is meant to run on super unleaded. Could that affect the sensor in any way? Last year I had to use some of that stuff you put in the fuel tank to clean the engine to get through the MOT as the lambda reading was too high. It worked a treat. I put some more in tonight and will report back on this. Finally, if it really has failed (the guy said it might clear of its own accord but I wouldn't bank on it) is it worth trying to pick up a second hand one, and if so is the sensor specific to the WR1? If not any ideas on where best to pick one up? Cheers, Diz