Front lambda sensor mystery

[MrCube182]

I've just replaced my front lambda sensor with a brand new one and the codes (sensor circuit and heater circuit) have reappeared after about 10 miles. Anyone know what this could be?

I thought perhaps a leaking exhaust gasket

Cheers!

 

[imprezaworks]

What make sensor?

 

[MrCube182]

I knew someone was going to ask that! :grin: Cheapo chinese. Are they really that bad?

 

[imprezaworks]

Yep

Just get a genuine one. Waste of money. Even worse on newer cars

Out of interest what was the price difference?

Had a feeling it was cheapo lol

 

[MrCube182]

This one was £19 on eBay vs between £50 ish and £120 for the Bosch one. I really skimped out hard :up:

The front one seems to be more expensive, however wouldn't the post cat one work as it is the same?

 

[imprezaworks]

Yeah £19 tells the story lol.

Think they are the same but one of the wires is longer.

 

[MrCube182]

Buy cheap buy thrice as they say :neutral:
I'll try a genuine one - maybe a post cat one because there's a bit of slack in the wire for the front

cheers

 

[The_Pirate]

Your first port of call should have been swapping the front and back one, that’d have singled out whether that was the problem.

 

[MrCube182]

Your first port of call should have been swapping the front and back one, that’d have singled out whether that was the problem.

Bit late now! Lol

 

[bloke]

you can get a bosch one from euro for a lot less than £120.

 

[JamesBryan]

Bosch ones are about £60 iirc

@George@RTR_Parts should be able to sort you out with one.

 

[MrCube182]

Does this one look like it'll work? https://www.ebay.co.uk/itm/LS6046-B...-2-0-16V-172-182-CUP-03-03-10-07/182577456228

 

[MrCube182]

Quick update on this - just fitted the Bosch sensor from the link above which was £47 inc postage... and the issue is solved. MPG shot up from 28 before to 39 (?!) on the motorway, a pretty massive improvement...the non-genuine ones are complete rubbish!

At the same time I fitted a drivers side driveshaft from J & R which was a massive bargain at £50! It even came with both cup and non cup ABS rings, and proper plastic boots.

A good result!

 

[imprezaworks]

Happy days.

You fitted the shaft yet?

Yeah you have. Some have found fitment issues. Mine was spot on.

 

[MrCube182]

Shaft is fitted and fits/works perfectly, I only had to switch the ABS rings over since mine is cup packed.
Initially I thought the shaft was too shot because the threads didn't show through the hub, but refitted it and all was correct.
The inner joint has to be slightly expanded for the hub nut to be bolted on which I think was the problem

 

[imprezaworks]

Winner. Nice one