fault in catalytic converter light

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alanr
Posts: 207
Joined: Thu Mar 08, 2012 10:16 pm
I drive a: R-Line
In: Indium Grey
With a: Manual box
Options: GT 2.0 TDI 184 tdi r line. Black addition

fault in catalytic converter light

Post by alanr »

light just come on this morning , car is running fine

any idea why it might come on , will the catalytic converter be faulty

thanks for any info
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Cuprabob
Posts: 5036
Joined: Sat Aug 07, 2010 2:31 pm
I drive a: GT 2.0 TDI 170/184
In: Rising Blue
With a: Manual box
Options: Panoramic Roof, 19" Black Luganos, Vienna Leather, Parking Sensors, DAB, Dynaudio, Bluetooth, Cruise, Folding Mirrors, Xenons
Location: S/W Scotland

Re: fault in catalytic converter light

Post by Cuprabob »

It could be any number of things as the light coming on just means the lambda probe has detected too rich a mixture. You need to get it scanned to.identify the source but it's unlikely to actually be the catalytic convertor. The light is actually to protect the cat as it can be damaged if unburnt fuel is dumped into it.

Just noticed you have a diesel. Is it the DPF light that has come on? If so you can forge a regen by driving at a constant 2,500 rpm for about 20 mins.

Best thing to do is get it scanned for the fault.
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