Lambda woes

Lambda woes

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Discussion

Coefficient

Original Poster:

14 posts

11 months

Monday 3rd December 2018
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I installed Rovergauge at the weekend. It's obvious that one of my lambda probes is not giving any data. I'm going to swap the probes around just to check that the probe itself is at fault. The "odd bank" is nearside, right?
In the likely event that I have to buy a new probe, I've noticed a wide range in prices. A Britpart Land Rover item can be found under £40 (including 2 year warranty). Then they go up to over £100. Any recommendations?
Cheers,

blitzracing

5,707 posts

164 months

Monday 3rd December 2018
quotequote all
Far as I know they are only made by one supplier, NTK I think and used on some Nissans. Im not aware of any generic parts as they are resistve probes unlike the vast majority of cars that use voltage producing probes. Cost wise there was a huge difference in price between the UK and USA, so it may just be sensible sourcing by Britpart. Odd bank is on the nearside of the car. Any doubt unplug the working probe and check RG shows no output.

Edited by blitzracing on Monday 3rd December 15:07

Sardonicus

16,259 posts

165 months

Monday 3rd December 2018
quotequote all
Read somewhere someone ordered some BritPart stPart ones and in the box was NTK/NGK units (may be bks) scratchchin sometimes this does happen however if only one supplier like Mark says but dont shoot the messenger if they come through as Walker/crap brand etc getmecoat

Coefficient

Original Poster:

14 posts

11 months

Thursday 6th December 2018
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Got myself an open sided socket set – cheap but seems decent quality. Drenched the probes with WD40 and left overnight. This morning not much is moving. The socket opens up and slips without rotating the probe. What are my options? I’m thinking cut the wires and use a standard 17mm deep socket. Man maths points to a new exhaust manifold though biggrin

Steve_D

12,475 posts

202 months

Thursday 6th December 2018
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Have you tried fitting a jubilee clip around the socket in the hope it will not splay?

Steve

Hedgehopper

1,403 posts

188 months

Thursday 6th December 2018
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A pig of a job I know. Have you tried with the engine hot? Different expansion of manifold and probe might help you.
If you do have to cut the wires cut close to the probe and then solder and heat shrink them together.
Meanwhile the jubilee clip sounds a good shout........ or perhaps a pair of Mole grips.

Coefficient

Original Poster:

14 posts

11 months

Saturday 22nd December 2018
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In the end I did cut the wires. Probe came out easily with a standard socket. I suspect a ghetto style hacked socked with a jubilee clip would also have worked but my “specialist “ socket did not have enough material to grip onto.
I did use my new socket to install a Britpart probe though, so that wasn’t a complete waste.
The new probe didn’t seem to work at first but I noticed a brief signal after I blipped the throttle, on the overrun, so probably a poor connection somewhere. In fact, the side clips on the electrical connectors don’t seem to be engaging. Do you really have to force those connectors together or is this a Britpart thing?
When I cross over the wiring I do get the expected short term trim on the opposite bank, so at least I know the loom is still working fine.

jesfirth

1,737 posts

186 months

Sunday 23rd December 2018
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I had what I thought was a dead lambda probe. Turned out to the wiring between the probe wiring and the main loom it's a 2 ft long section with the white connectors on each end. They get subjected to a lot of heat. Nice easy fix. Might be worth a check.