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Author Topic: Primary lambda sensor heater fault  (Read 1074 times)

Offline alackofspeed

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Primary lambda sensor heater fault
« on: August 26, 2013, 12:00:32 am »
Hi,

My GTI's MIL came on earlier today, and VCDS reports a failed primary lambda heater. Engine is a BWA, in a 2007 running Revo Stg 1.

First problem of its kind on the car, and clearing the fault code causes it to immediately reappear.

On the MK5 if a heater problem is reported, is it genuinely a heater fault, or can it be a misleading fault?

I could replace the sensor as a first step, but at about £100 (guess) it'd be useful to know if something else maybe wrong I should investigate first.

Cheers.


Offline adgti

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Re: Primary lambda sensor heater fault
« Reply #1 on: August 26, 2013, 01:00:59 am »
normally if it's a lambda hearter fault it's normally failed

Offline alackofspeed

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Re: Primary lambda sensor heater fault
« Reply #2 on: August 26, 2013, 01:36:19 pm »
TPS in the morning then.