Lambda + sports cat woe

[JamboM3]

Second Lambda in 6months, cars undriveable now as needs a replacement.
Its a 2004 FF 182, is there a special Lambda/uprated one i can get as i cant be dealing with replacing a £70 sensor every 6months.



Or just whack the standard cat back in?


Help!

 

[BRUN]

dont the parts have a 12 month warranty, genuine ones do

 

[JamboM3]

was replaced at jms

 

[Damo_Sport]

im sure it would still have 12 months warrenty

 

[Tom@JMS]

Pre cat or post cat lambda mate?

 

[JamboM3]

its a post cat one!

 

[Mark One]

nah. Post cat lambda does very little. It's main purpose is to check the effectiveness of the cat.
The pre-cat is the only one the worry about.

 

[JamboM3]

Well its failed and the car doesn't work so id say its just a little bit nessecary lol

 

[JCC]

Never heard of the post cat lambda stopping the car working! It does nothing apart from check the cat's working!

 

[JamboM3]

it still moves, but looses all power. EML that has flashed up before was diagnosed as the Lambda and brake pedal sensor. Im guessing its the lambda...

It will be getting diagnosed properly though...

 

[Phil_tilt]

mine went on mine however so far no problems since, i did find it seemed to lack a bit of power though.
if you find a better one be intresting to know which one you get

 

[Mark One]

hang on. Have you tried changing the pre-cat lambda? and are you sure it is the lambda at fault? is it in limp mode? have you considered anything else (map sensor...)

edit: I've had my post cat lambda in poor condition, i've got oil on it (not supposed to), and i ran for ages without the sensor even in the exhuast. I'm pretty confident your problem is elsewhere.

 

[James.f]

Is the MAP and MAF sensor the same thing?

 

[JamboM3]

Im going by the codes that the eml flagged up and local garage gave me printout and it says downstream lambda seensor. It still ran but struggled with no power splutterinng and lumpy as hell. Taking it to local garage tommorow to get inspected.

Just fired it up now and it turned over fine, eml has gone out too. Im wondering if the hot weather caused it?

 

[JamboM3]

Update:

Took it to my local garage who i trust, found the lambda (post cat) was stuck to the cat and not in the hole :|
So basicly it had melted and was reading the open air, not the exhaust.

Lambda has been replaced, car has never run smoother or more responsive!

Very happy its all sorted

 

[Mark One]

so your saying that the post/downstream/after cat lambda has made a difference to the car's running?

Nothing else was changed at all? Were the wires melted?

Maybe this is a difference between 172ph2 and 182