Decat.......

[172 cuppy]

I fitted a decat pipe to my 172 cup about 3 weeks ago and as i was driving home today my engine management light came on!!!

is it alright to keep driving it!!!
if i take the decat off and fit the original will the light go off if not what can i do to make the light go out any suggestions would be great.

 

[Jim NM]

I believe its to do with the sensors one before and one after they should read different otherwise your light will come on K-tec do a decat that fools the sensors and is legal (they say)

 

[edde]

You should never plug the second sensor in if you do then you'll (as you have) set the warning light off. It doesn't make any difference to power though just the lights there.
To get rid of it you need a garage to clear the fault then to stop it comming back unplug the second senor.

 

[Middo]

on the 172 i believe if you sort the sensors, then after 3 clean restarts the light will go off.

am certain gt gaz said something along them lines with his car.

 

[172 cuppy]

what do you do with the second lamba sensor do you unplug it or cable tie it to the car. who would clear the fault would i have to take it to renault.

 

[172 cuppy]

do you mean by starting the car 3 times the light will go out.

 

[edde]

what do you do with the second lamba sensor do you unplug it or cable tie it to the car. who would clear the fault would i have to take it to renault.

Unplug it and cover the wires so they don't get dirty etc then just cable tie them up.
Quite a few garages can cleanr the fault if they have the right toolsing (Snap on can clear it).

It will apparently in GT's ase clear with enought clean starts but with no cat you won't get any clean starts.

 

[172 cuppy]

with the light being on would it be alright to keep driving it.

 

[edde]

with the light being on would it be alright to keep driving it.

Yep it makes no difference no power loss or anything.

 

[Ali]

Mine was on before i got decat lol...I just ignore it.

 

[thedoc]

with the light being on would it be alright to keep driving it.

no problem, mine's been on almost a year now...

 

[Pete]

You should never plug the second sensor in if you do then you'll (as you have) set the warning light off.

I have the warning light on and never plugged the second sensor in! So it's not just having the sensor connected that causes it!