Wide band Lambda sensor plug

[Dave B]

I am trying to relocate my lambda sensor from 4 primary to the cat where the 4:1 is. Dont want to drill a bl**dy great hole in side panel to get the plug through but I cant get the wires out of the plug*mad*

Any ideas please.

 

Dave B

[Jonathan Kay]

I'm sure you've thought of this already... but is there a connector between the sensor and the loom?

Otherwise... photo, please.

Jonathan

[Dave B]

Yes Jonathan, there is a connector with 5 wires and it is this that I need to remove the wires from. Hopefully pic attached. No cant figure out how to attach photo!!!!

 

Dave B

[Jonathan Kay]

Can't see the picture... instructions here.

Jonathan

[Dave B]

Thanks Jonathan, bit complicated but got there. I have disconnected a small clip which appeared to be securing the wires but the wires still refuse to come out.

[Jonathan Kay]

Well done. And what's on the other end?

Is the same wire long enough for the new location?

Can you slip something down the side of the wire to release anything?

Jonathan

 

 

[Dave B]

On the other end is the lambda sensor. Wire is certainly long enough. I have tried prising the wires out with a jewellers screwdriver but no joy. Am thinking trying to get the grommet over the sensor as that is marginally smaller that the connector. Judicious use of rubber lube might just do the trick.

 

Dave B 

[Mankee]

Can you not run the wiring under the side soon instead of through it? Or does it just look gash?

[Jonathan Kay]

How are you going to insulate the wire from the heat of the exhaust pipe?

Jonathan

[Dave B]

Could take the wire through the exhaust hole in side skin but a) it would look naff, b) would be toooo close to exhaust. Under side skin would leave the wire susseptible to stones etc.

No need to insulate wire if I can get it through side skin as I will cable tie in engine bay to passenger footwell.

[Dave B]

Actually Mankee, I have googled some pics of sensor positions and under the side skin doesn't look too bad. Certainly better than drilling a hole through and no dismantling of plug. Result. Thanks for the suggestion.

Dave B

[Mankee]

Awesome. Glad that the suggestion was useful, as I'm sure I've seen it routed under the side skin on some cars.

[TJG]

My R400D left the factory with the Lambda loom P clipped to the underside of floor/chassis without going through the side skin. I've never had any issues with it contacting anything.

Tony

[7 wonders of the world]

I ran mine under the side skin for a tempoary set up to do some initial mapping work, had to make a extension up as the loom wouldn't reach the probe harness.

Are you looking to run with this full time? or merely for mapping, I ran open loop after the Emerald session and removed the cat and lambda and blanked the boss with a plain plug, neat and you get the engine running on a proper map too.

 

 

 

[Mankee]

Dave is in Gran Canaria, so the CAT has to stay where it is unfortunately. There probably aren't many Emerald mappers out there, so a relatively close base map and adaptive mapping using a wideband lamba is probably the best option.

Otherwise, I would fully agree that removing the CAT and lambda sensor reduces weight, wiring and another thing to fail, as I don't run a lambda sensor either. However, I would map the car without a CAT if I was to run without a CAT most of the time, just in case it affects anything.

[Dave B]

Thanks guys for your comments. Lambda is now wired under side skin and seems to not be a problem.

Mankee you are correct I must leave the cat on as the insurance companies here will declare your car illegal if it is not as it was for ITV ( and you make a claim of course ).

The good news is I have found two people over here who are familiar with Emerald and have rolling roads, result. Just need to get the engine rebuilt to 1800 and get it mapped.

Dave B