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Model specific boards => Golf mk4 => Topic started by: 150+ on 07 June 2013, 19:06

Title: Lamda sensor
Post by: 150+ on 07 June 2013, 19:06

Just fitted a decat down pipe, and now the sensor after where the cat would have been don't fit!! :laugh:

Any ideas??

Title: Re: Lamda sensor
Post by: rio_gti on 07 June 2013, 19:21

Wrong size hole?? 

Title: Re: Lamda sensor
Post by: 150+ on 07 June 2013, 19:22

Lol!! No it don't fit in the exhaust tunnel

Title: Re: Lamda sensor
Post by: rio_gti on 07 June 2013, 19:32

Turn the tube it goes into round a turn so it faces downwards
(It's strange because mine fits straight up!!!)

Title: Re: Lamda sensor
Post by: 150+ on 07 June 2013, 19:58

??

The hole for it faces the floor of the car (upwardsinto the tunnle) and I can't turn the pipe as its fitted

Title: Re: Lamda sensor
Post by: pickles on 07 June 2013, 20:25

any pics, i assume its the correct downpipe, should just screw in.

Title: Re: Lamda sensor
Post by: 150+ on 07 June 2013, 20:46

Just a 2.5 decat downpipe bought it out a member on here...it's fits straight onto my miltek system no probs just can't fit the sensor back on!!

What does the rear sensor do anyways??

Title: Re: Lamda sensor
Post by: pickles on 07 June 2013, 20:54

hmmmmmmmm hard to say without looking at it.

It measures the oxygen after the cat and compares it with values from the pre cat lambda sensor amongst other sensors to provide optimum fueling. or something along those lines lol.

Title: Re: Lamda sensor
Post by: rio_gti on 07 June 2013, 21:02

(http://i1092.photobucket.com/albums/i408/rioracer/64CD49A4-99E4-4A23-B8A7-F38DBA0293F3-1882-000001445131ED9B_zps9ffbc732.jpg) (http://s1092.photobucket.com/user/rioracer/media/64CD49A4-99E4-4A23-B8A7-F38DBA0293F3-1882-000001445131ED9B_zps9ffbc732.jpg.html)

what I mean is, if it doesn't squeeze in like that, then loosen the clamp where it meets the miltec and undo the 3 bolts where it joins the dp, then twist it one way till the bolt holes line up (1/3 of a rotation) so it points away from the tunnel.

Title: Re: Lamda sensor
Post by: 150+ on 07 June 2013, 21:07

Ahhh  :laugh:

Mine isn't like yours, mine is a one piece!! Can I have a hole drilled at a diff angle and close the existing hole. Is it safe to drive ie damage to the engine or will I just use loads more fule

Title: Re: Lamda sensor
Post by: pickles on 07 June 2013, 21:13

can get something like this  http://www.ebay.co.uk/itm/O2-OXYGEN-SENSOR-STAINLESS-STEEL-WELD-BUNG-WIDEBAND-ADAPTER-NUT-CAP-KIT-SET-/121041328073#vi-content

and weld it on.

Title: Re: Lamda sensor
Post by: 150+ on 07 June 2013, 21:31

That's what's in the whole at the minute

Title: Re: Lamda sensor
Post by: pickles on 07 June 2013, 21:38

cap it off and weld another lol, tbh id just buy another downpipe.

Title: Re: Lamda sensor
Post by: 150+ on 07 June 2013, 22:35

I would if I had the dosh!!

Think ill just cap it and be done, thanks for you input fella  :smiley: