Removing Lambda - Engines Forum - Peugeot 306 GTi-6 & Rallye Owners Club

Post #1

So replacing the MAP seemed to cure the idle issues i was having but plugging the lambda back in has partially bought them back. I think perhaps both the MAP and the Lambda were screwed....

It's overfueling a bit so as i have a spare lambda im gonna change that and hope for the best... problem is getting the fooker off!!

Im thinking this method a it's properly seized....

- Get some rust/bolt penetrant stuff on it overnight (does this stain driveways by the way?)
- Cut the lead at the top of the sensor.
- Get a socket on the sensor.
- Attach the biggest breaker bar i can find.
- Try desperately to get it off.

What do we think, any tips?

Also should i avoid doing it with the car jacked up if i can? Don't wanna rock the thing so much it falls off the axel stands or something Doh

Many thanks, with a little bit of luck the beast will be working smoothly soon LOL

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Just Drive It

Post #2

have you tried undoing it when it's hot?

if it was me i'd try some heat on it, and then i'd be either whipping the cat off and putting it in a vice or just undoing it with a proper ring spanner and a bit of tube on it for more power after wd40'ing it

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306 rallye reproduction decals (full sets/individual decals) | 306 b-pillar textured vinyl weatherstrips
306 slam panel esso stickers | 306 yellow / orange / pension fund red side door badges
306 red '6' 3d-printed badges (old part no 866503) | gti6 inlet manifold badges | 306 rear boot badges (p2/p3)
winner of Extraction of toys from prams with outstanding vigour award 2009 [source: gti6 owners club]

Post #3

rikky wrote:

Will give it a try with some heat rikky, just need to watch out i don't burn myself LOL

I can also take the CAT off although it's a bit more of a ballache so would like to try and avoid Whistle

Probably worth the hastle though as it means getting the job done properly Yes

Now just to find some time to do it Doh

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Just Drive It

Post #4

Glad the plug worked

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98 onyx black 306 Rallye
53 Nissan Primastar silver (work horse)
58 black Volvo c30 sport

Post #5

fordygti wrote:

Glad the plug worked

Yeah thanks for that mate Thumbs up

Nearly had a heart attack when i opened the envelope to see nothing, took me a few seconds to realise it had been folded over and the sensor was hidden LOL

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Just Drive It

Post #6

Just be aware some lambdas if badly corroded will pull the threads out of the cat as you undo them Thumbs down

Did it on my daughters polo, gave it some heat and got a socket on it with a breaker bar and it started to undo, thought I had won! Roll eyes

Untill I tried putting the new one in Whistle

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Red GTB1756 powered Fabia VRS daily driver,LBSC Gti6 eater........

Mac1 ZR R1 kit car build in progress.

Post #7

Heat and decent vice grips. But before munching it I'd probably go with cutting it off and popping a socket over it.

Couple of Weetabix before wouldn't be a bad idea.

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Bianca Rallye-S Flowers

205 GTi6 on ITB's

Post #8

if you don't know its the lambda I would not go cutting things, just borrow or buy a lambda sensor socket, though I have yet to fail with a standard 22mm halfords spanner.

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need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Post #9

coskev wrote:

my daughters

coskev wrote:

gave it some heat

coskev wrote:

got a socket on it

coskev wrote:

I tried putting the new one in Whistle

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Post #10

To summarize you could say he made a right mess of her tight rusted ring piece.

But that would be wrong so I wouldn't suggest that. Just saying you could. Don't hurt me. ~~That's wha~~

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Bianca Rallye-S Flowers

205 GTi6 on ITB's

Post #11

welshpug! wrote:

if you don't know its the lambda I would not go cutting things, just borrow or buy a lambda sensor socket, though I have yet to fail with a standard 22mm halfords spanner.

Noted

I have sort of owned the car for over 12 years now though and i know for a fact the lambda hasnt been changed for nearly 10 of those, it's highly lkely it's finally given up Doh

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Just Drive It

Post #12

I had to beat the s**t out of mine with the cat off the car and that was only in there for 6 years or so, so be prepared for a battle

Post #13

The older they get - the more reluctant they are*

Erm?

*Rikky's words.

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Bianca Rallye-S Flowers

205 GTi6 on ITB's

Post #14

rikky wrote:

coskev wrote:

my daughters

coskev wrote:

gave it some heat

coskev wrote:

got a socket on it

coskev wrote:

I tried putting the new one in Whistle

Pikey Pervert Thumbs up

dangti6 wrote:

To summarize you could say he made a right mess of her tight rusted ring piece.

But that would be wrong so I wouldn't suggest that. Just saying you could. Don't hurt me. ~~That's wha~~

Steady!

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Red GTB1756 powered Fabia VRS daily driver,LBSC Gti6 eater........

Mac1 ZR R1 kit car build in progress.

Post #15

fletch wrote:

I had to beat the s**t out of mine with the cat off the car and that was only in there for 6 years or so, so be prepared for a battle

Thanks Fletch, good to see you are still hanging around mate Thumbs up

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Just Drive It

Post #16

have you got it undone yet?

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Post #17

WHAT HE SAID

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Bianca Rallye-S Flowers

205 GTi6 on ITB's

Post #18

rikky wrote:

have you got it undone yet?

No chance buddy! The car is at my parents and i don't get back there too often. I am away in a few weeks and then moving the week after so i cant see it happening until mid July. I will take the modified cat pipe off and work with off the car, just cant see how i can easily get it off while under there

I will take some pics while i do it so that it's documented somewhere Yes

:-)

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Just Drive It

Post #19

You might be pleasantly surprised, I'd try first with it on the car, you may find it comes undone without the need to remove the pipe. Obviously if it doesn't then you will need to remove the pipe, but it's worth a go first. Smile

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"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love

Post #20

Few Dianabol should do the trick Thumbs up

Post #21

rikky wrote:

have you got it undone yet?

In true speedy fashion, six years on i have finally just got this f**ker off! Laugh my ass off

I had to remove the cat (in two parts with the custom exhaust) but the bolts to the manifold were all corroded and buggered so had to slowly and painfully cat away with them at a dremel to get them off. Once that was off i was lacking a beefy enough vice so decided to drive over the little bit of pipe where my sensor is screwed in to hold it down in place, 20mm socket and a huge breaker bar and bam it came away Ninja

So to summarise an oxygen sensor that's probably been on for the life of the car and a section of exhaust that's probably never been unbolted from the manifold since it was bolted together in the first place = an absolute nightmare Doh

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Just Drive It

Post #22

Sounds like all the reasons why I hate doing stuff to cars now in one!

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Ex- Phase 3 China GTi-6 T-Reg