Lambda sensors

[Pricey98]

Are the pre and post cat lambda sensors the same, ie same part number? Thanks.

 

[JamesBryan]

I believe they are for the 182, i.e. the cable length is the same.

 

[imprezaworks]

Think its the length of the wire that differs a bit, but they will swap.

Its normally the pre cat thats an issue. What's up?

 

[Pricey98]

I believe they are for the 182, i.e. the cable length is the same.

Same for the 172?

 

[Pricey98]

Think its the length of the wire that differs a bit, but they will swap.

Its normally the pre cat thats an issue. What's up?

Fuel economy has dipped a bit recently and runs like a pig when cold (normal to an extent though with these lol). Am getting my thermostat and temp sensor changed as Ive noticed a bit of fluctuation on engine temperature gauge recently and it's probably on the original thermostat anyway. Can't do any harm to change the front lambda sensor too.

 

[JamesBryan]

Same for the 172?

Couldn't say mate, i've never been under one. The pre cat sensors will be the same for both 172/182.

With my 182 the post cat wiring has an extended wire which meets the post cat, so it uses identical length wires for both sensors.

 

[Pricey98]

May be a daft question, but if the front lambda sensor isn't functioning correctly would you always get an engine management warning light? I have no lights on so would this mean it's definitely functioning as it should? ?

 

[JamesBryan]

May be a daft question, but if the front lambda sensor isn't functioning correctly would you always get an engine management warning light? I have no lights on so would this mean it's definitely functioning as it should? ?

No, doesn't mean it's working. The EML is for the post cat sensor really for emissons and things.

These cars do like to go through lambdas.

 

[Pricey98]

No, doesn't mean it's working. The EML is for the post cat sensor really for emissons and things.

These cars do like to go through lambdas.

Thanks. I reckon at 15 odd years old it's probably worth changing then.

 

[JamesBryan]

Thanks. I reckon at 15 odd years old it's probably worth changing then.

Definitely, i changed mine the other year and noticed better MPG straight away.

 

[imprezaworks]

50/60 new iirc?

I got one off here for about a tenner i think a little while ago, been spot on.

 

[Pricey98]

50/60 new iirc?

I got one off here for about a tenner i think a little while ago, been spot on.

Yup, in that price range on eBay from reputable sellers. ECP are about £100 and genuine Renault are about £130,even from RPD.

 

[JamesBryan]

@George@RTR_Parts sorted me out with mine ?

 

[imprezaworks]

It’s Bosch iirc. Pop a wanted thread up and see if anyone has a spare.

 

[Pricey98]

@George@RTR_Parts sorted me out with mine ?

Just bought some rear brakes off him funnily enough. Top service.

 

[George@RTR_Parts]

cheers @JamesBryan

Yes I can supply them @Pricey98 PM me to remind me please and will check stock of them

 

[Robbie Corbett]

I bought genuine Bosch lambdas not long ago, paid £35 each (from memory). I'll hunt for the link and post it here if I find it.

 

[Pricey98]

I bought genuine Bosch lambdas not long ago, paid £35 each (from memory). I'll hunt for the link and post it here if I find it.

Think it was in one of my previous threads actually. Checked earlier and the price had gone up, although not by much.

 

[Robbie Corbett]

Yes your right!

https://www.cartech-one.co.uk/en/product/134826-bosch-lambda-sensor/v-14183

Arrived within a few days, proper Bosch items with correct part numbers, lead lengths and connectors @ £36 each I was happy.

 

[imprezaworks]

Bargain

 

[bloke]

i'd say 90% of bad lambdas i've taken off haven't thrown an eml. even had injector at 3ohms that didn't throw eml either.

 

[imprezaworks]

@Pricey98 did you order one?

 

[Brigsy]

My kangoo has started to misfire again when cold and looking at live data on clip today the pre cat lambda sensor looks a bit all over the shop, no eml or codes stored. Already swapped front to back so had my moneys worth ! Will order one off the link thats a great price?

 

[imprezaworks]

Yeah think I need one too. Anyone ordered and been happy etc?. Seems a decent price compared to others.

Shipping £7?. How much are they from others?

 

[bloke]

My kangoo has started to misfire again when cold and looking at live data on clip today the pre cat lambda sensor looks a bit all over the shop, no eml or codes stored. Already swapped front to back so had my moneys worth ! Will order one off the link thats a great price?

they are meant to be up and down on voltage, pretty much between 0 and 1 volt.

 

[npt]

So if I was to order two, they would both fit my 172cup in regards to cable length?

 

[Brigsy]

they are meant to be up and down on voltage, pretty much between 0 and 1 volt.

Aye i know they go up and down between 0-1 as narrowband. One min its very slow to respond and instead of linear up and down seems to be jumping all over the place. Have checked connector for corrosion and all good. Its a shame its not wideband as i have a load of sensors kicking about.

 

[Pricey98]

@Pricey98 did you order one?

Just ordered one off George@RTR. Slightly more expensive than the one in the link, but need it pretty quickly. Still considerably cheaper than Renault OE one though.

 

[bloke]

Aye i know they go up and down between 0-1 as narrowband. One min its very slow to respond and instead of linear up and down seems to be jumping all over the place. Have checked connector for corrosion and all good. Its a shame its not wideband as i have a load of sensors kicking about.

Common for them to be slow, seem ok and then when you graph them they are bloody awful!!
Think Bosch say to replace after 90,000 miles anyway?

 

[Robbie Corbett]

Yeah think I need one too. Anyone ordered and been happy etc?. Seems a decent price compared to others.

Shipping £7?. How much are they from others?

Mister Auto are also pretty good on price. As said, I ordered two - they arrived and I was happy. Bosch boxes, serial numbers etc. Still working perfectly 3K later.

 

[imprezaworks]

Cheers.

 

[Robbie Corbett]

My kangoo has started to misfire again when cold and looking at live data on clip today the pre cat lambda sensor looks a bit all over the shop, no eml or codes stored. Already swapped front to back so had my moneys worth ! Will order one off the link thats a great price?

Remember that a missfire will drive the primary lambda mad.

My lambda had failed and was telling the ecu the car was running really lean, symptoms were:

Rich at idle - soot when revved.
Terrible ecconomy (20mpg - 34 after new lambdas)
Intermittent EML, would disappear after a restart and would not come back for maybe 1week
Ran well at full throttle but cat would smell really bad
Eventually the car would bog down awfully about 1min after cold start - this is because the ecu does not apply short term trims until the engine is warm.

New lambdas solved everything - however if you have a missfire and have already swapped the lambdas around I might be suspicious of another issue.

Rob,

 

[Robbie Corbett]

Cheers.

No worries - given the low price I was suspicious too, thought they may have been Chinese knock off's etc however after they arrived I was pretty satisfied they were genuine.

 

[Pricey98]

New Bosch lambda fitted yesterday. Car ran a lot smoother from cold this morning and didn't feel like it was being held back. Will probably take a little while to notice any increase in fuel economy, but was definitely worth changing.

 

[imprezaworks]

Did you buy from the link above?

 

[Pricey98]

Did you buy from the link above?

No, from George@RTR.

 

[imprezaworks]

Ah sorry you did say.

 

[Clio_fool]

Yes your right!

https://www.cartech-one.co.uk/en/product/134826-bosch-lambda-sensor/v-14183

Arrived within a few days, proper Bosch items with correct part numbers, lead lengths and connectors @ £36 each I was happy.

I ordered one from here Tuesday night and it arrived today. £40 all in genuine bosch all the way from Germany.

 

[ste 193]

I’m confused... is the pre cat and post car lambda sensor the same? If they are different then in what way are they?

Thanks!!

 

[JamesBryan]

I’m confused... is the pre cat and post car lambda sensor the same? If they are different then in what way are they?

Thanks!!

On a 182 they are the same.