Decat Blanked/Bunged, Exhaust Emissions Light within an hour! :@

[unfortunately_french]

This is really pissing me off. I had the exhaust blanked/bunged today with the correct size bolt and had the lambda sensor secured above the heatshield and the light went off...Happy days! However when driving about an hour after doing this, it came back on! I really want to get it to stay off (without putting the cat back on) and was wondering if anyone has disconnected the sensor altogether from the wire it's attached to and if that worked? Any other permanent (without putting the cat back on) solution?

 

[Dave.]

uuurrrrmmm, i have decat, both lambdas in original positions with itbs and cams and the light has never come on. seems odd fella. i think if you completely unplug it it will go in to limp home mate

 

[Si]

The second lambda still needs to be plugged in for the emissions light to stay off. When I had a de-cat and removed the post-cat lambda the emissions light was on all the time. Since fitting a cat and plugging it back in it's off.

I'm not 100% but if you can fit both lambdas with the de-cat the light might stay off. If you're lucky. Blank it and it will come on.

 

[Tom@JMS]

Diagnostics.

 

[Chris205]

my ph1 EML never came on with de-cat but the trophy has

 

[unfortunately_french]

The second lambda still needs to be plugged in for the emissions light to stay off. When I had a de-cat and removed the post-cat lambda the emissions light was on all the time. Since fitting a cat and plugging it back in it's off.

I'm not 100% but if you can fit both lambdas with the de-cat the light might stay off. If you're lucky. Blank it and it will come on.

Second lambda was originally plugged in and light came on after about 3 weeks of fitting decat, hence why i tried blanking the sensor hole and securing the sensor. It was ok for about an hour and then came back on - FAIL

 

[unfortunately_french]

Diagnostics.

Also went on a 'Snap On' Diagnostic and all fault codes cleared, the codes that were cleared were nothing to do with the lambda or cat anyway

 

[unfortunately_french]

The second lambda still needs to be plugged in for the emissions light to stay off. When I had a de-cat and removed the post-cat lambda the emissions light was on all the time. Since fitting a cat and plugging it back in it's off.

I'm not 100% but if you can fit both lambdas with the de-cat the light might stay off. If you're lucky. Blank it and it will come on.

DO NOT WANT THE s**tTY CAT AS STATED IN FIRST POST.

 

[Tom@JMS]

Also went on a 'Snap On' Diagnostic and all fault codes cleared, the codes that were cleared were nothing to do with the lambda or cat anyway

EML = fault code = explanation

Are you sure there was nothing relevant?

 

[unfortunately_french]

EML = fault code = explanation

Are you sure there was nothing relevant?

99.999999% sure there was nothing that was relevant to this/would be a reason the light is coming on. I'm very close to just ripping the dash out and removing the LED as i just want it off.

 

[sideways danny]

Alex, the codes that came up were related to throttle potentiometer. With the lambda where it is, there's no way it can switch the light on.

 

[unfortunately_french]

Alex, the codes that came up were related to throttle potentiometer. With the lambda where it is, there's no way it can switch the light on.

The throttle potentiometer is surely nothing to do with the light coming on either...time to rip the dash out then i suppose.

 

[hipwell]

I unplugged the lambda and the eml was on all the time.

I then clearer the code and got an Rs tuner remap and never saw the light again.

 

[Austin-182]

I wouldnt leave the lambda unplugged
The place that made my custom decat made the correct fitting for the lambda to still be conected and my light hasnt came on....yet lol

 

[unfortunately_french]

As said further up the thread, the lambda was plugged into the decat for about 3 weeks, then the light suddenly came on.

 

[Keith Lemon]

The light came on on my old 182 becuase of the decat, really pissed me off at first, but you'll get used to it!!

 

[ripp]

there is a lambda sleeve on Kamracing that is said to cure the emissions light problem but I'm not sure how it works
link here: http://www.kamracing.co.uk/renault/...ts-fittings/kam-racing-lambda-sleeve-m18.html
anyone fitted this? help would be nice as I'm planning to get a de-cat