Decat/engine lights

[Bluebeard]

Afternoon all!
I’m at that age where warning lights bug me. Gone are the days of a decat and a new sterering wheel and just putting up with the lights…

I want to decat my van - the lamda sensors are finished anyway and the sale of the cat will fund a new exhaust system.

so, has anyone successfully fitted a decat and managed to keep the EML off?? Either by mapping them out (don’t laugh, just done this on a Mercedes and I’ve done it before on a 330i) or by fitting a spacer on the lamdas?

I’m all ears. X

 

[Krarl]

Bung the secondary lambda and then cable tie it to the underside of the car plugged in. My EML never comes on

 

[Martin_172]

worth noting that none of my RSTuner tuned cars have had an EML come on, or any fault code stored for having no cat. - theres nothing that specifically mentioned that its been mapped out but i would assume it is, as my old standard one used to come on every few weeks (i just had a bluetooth OBD reader in and turned it off in my app every time it came on)

My van runs standard lambda sensors, decat, and RSTuner map, no EML in 2 years/6k

 

[RSRowe]

Spacers are cheap and work. But obviously rely on the sensors still working.

 

[Jekyll]

I have a decat and have done what @Poo’thologist mentioned.

My light comes on maybe once a month but only lasts a day or 2 then goes away again.

 

[Brigsy]

90deg spacer works for most of the time. Worth getting it mapped though.

Ill warn you in advance that the drone is ridiculous with one silencer though

 

[Alastair.]

Really strange but our Clio 182 track car hasn't had a CAT for about 7 years, never thrown a warning light up. i do still have the lambda probes fitted though.

 

[Ex-User (99307)]

Have the spacers on the vee, they do the job.

 

[Louis]

Take the bulb out.

 

[Krarl]

90deg spacer works for most of the time. Worth getting it mapped though.

Ill warn you in advance that the drone is ridiculous with one silencer though

Ktec stealth unresonated on a 182 manifold and a decat

It gives me a headache after 10 mins of motorway driving🤣🤣

 

[Jekyll]

Link to spacers?

 

[Brigsy]

Ktec stealth unresonated on a 182 manifold and a decat

It gives me a headache after 10 mins of motorway driving🤣🤣

Mine was the same with a longlife silencer, headache on a motorway run

 

[VenomUK]

90deg spacer works for most of the time. Worth getting it mapped though.

Ill warn you in advance that the drone is ridiculous with one silencer though

Is this an EFI job to map out or is it not that kind of map and more something diamond can do and turn the second off and tell the computer to stop looking for it?

Think what I’m trying to say is does it need to go in a RR to map it our

 

[MRBILLYUK]

Is this an EFI job to map out or is it not that kind of map and more something diamond can do and turn the second off and tell the computer to stop looking for it?

Think what I’m trying to say is does it need to go in a RR to map it our

When I had a decat on my 182, both lambda sensors plugged in i had no eml for months. I think it came on about twice. I just plugged in a cheap obd scanner and and reset it. No more lights. I don't see the need to have it mapped out if you can reset it for yourself. 😊

 

[Louis]

Is this an EFI job to map out or is it not that kind of map and more something diamond can do and turn the second off and tell the computer to stop looking for it?

Think what I’m trying to say is does it need to go in a RR to map it our

I think you're overthinking this a little mate. Makes zero difference if EML displays or not and its likely it wont show up at all.

 

[Jekyll]

I think it's more a visual thing as many don't like seeing lights on the dash. It certainly doesn't affect the way the car runs if it's showing up or not.

 

[Krarl]

If you don't like lights on the dash then they shouldn't have bought a Renault 😂

 

[VenomUK]

I think you're overthinking this a little mate. Makes zero difference if EML displays or not and its likely it wont show up at all.

100% overthinking it mate, you are correct there.

I think it's more a visual thing as many don't like seeing lights on the dash. It certainly doesn't affect the way the car runs if it's showing up or not.

My Soul won't allow it lol

If you don't like lights on the dash then they shouldn't have bought a Renault 😂

That's a very good point

 

[Louis]

Just shut your right eye whilst driving

 

[Bluebeard]

I think it's more a visual thing as many don't like seeing lights on the dash. It certainly doesn't affect the way the car runs if it's showing up or not.

Also, I want the EML to light up if there’s an actual issue (other than the lamda readings)

 

[Louis]

Also, I want the EML to light up if there’s an actual issue (other than the lamda readings)

You'll know when the engine goes boom boom boom

 

[Bluebeard]

Link to spacers?

⭐ 90 DEGREE ADJUSTABLE LAMBDA O2 OXYGEN SENSOR BOSS EXTENDER SPACER M18 x1.5 ⭐ | eBay

Logistics Tips： Dear customers, We are always working hard to ensure that orders are delivered on time. But inevitably there will be a very small number of orders may be delayed due to the worsening of the epidemic. If you have other problems or experience delays after purchase , please send us...

www.ebay.co.uk

 

[Louis]

⭐ 90 DEGREE ADJUSTABLE LAMBDA O2 OXYGEN SENSOR BOSS EXTENDER SPACER M18 x1.5 ⭐ | eBay

Logistics Tips： Dear customers, We are always working hard to ensure that orders are delivered on time. But inevitably there will be a very small number of orders may be delayed due to the worsening of the epidemic. If you have other problems or experience delays after purchase , please send us...

www.ebay.co.uk

These are a good style as I've seen some that are just a straight thread. Was wondering if they arent keyed properly theyd end up perpendicular to the decat 😂

 

[VenomUK]

I'm back again...

The car is back now with the decat and bung fitted. I still have the engine light on. I cracked out the cheap reader and says no codes.
The secondary is in the air (I do need to check this as I never fitted it), is it a case of just running it for a while till it resets itself?

 

[Bluebeard]

I'm back again...

The car is back now with the decat and bung fitted. I still have the engine light on. I cracked out the cheap reader and says no codes.
The secondary is in the air (I do need to check this as I never fitted it), is it a case of just running it for a while till it resets itself?

Yeah mine lasted about 1.5 miles before it threw the light back on. 😂

 

[Louis]

I'm back again...

The car is back now with the decat and bung fitted. I still have the engine light on. I cracked out the cheap reader and says no codes.
The secondary is in the air (I do need to check this as I never fitted it), is it a case of just running it for a while till it resets itself?

Was the EML on before?

 

[VenomUK]

Was the EML on before?

The engine light was on before as I needed to start the car up without any of the lambda sensors connected or exhaust, just manifold to air.

 

[VenomUK]

Yeah mine lasted about 1.5 miles before it threw the light back on. 😂

Can't get mine off to start with

 

[Bluebeard]

Can't get mine off to start with

I think/pretty sure I need 2 x new Lamdas. I’ll get them and try it again after.

 

[Louis]

The engine light was on before as I needed to start the car up without any of the lambda sensors connected or exhaust, just manifold to air.

Ahh. What's your cheap reader? You should see a code with the reader. You can also try disconnecting the battery for an hour then plug it back in. Should reset the ECU

 

[VenomUK]

I think/pretty sure I need 2 x new Lamdas. I’ll get them and try it again after.

They were working fine before removing which is the strange/annoying thing?

Ahh. What's your cheap reader? You should see a code with the reader. You can also try disconnecting the battery for an hour then plug it back in. Should reset the ECU

It's just a cheap £20 Euro Car Parts thing, Getting no codes at all. It probs the reader as it won't let me erase (even though nothing is showing).
That's a good shout, I'll disconnect the battery for an hour and see how that gets on.

 

[VenomUK]

Just reconnected the battery and the light is still on....? I will try my friends' reader later on and see if that reads anything?