Hi.
I have a 2001 A3 1.8 8L pre face-lift.
My pre-cat sensor has an open circuit heater fault.
Everything i have read would suggest the sensors for my car are 4 pin, but only the post cat is 4 pin. The pre cat seems to be a 5 pin wideband sensor.
Does anyone know the heater pins to test? Further, does anyone actually know the part no. Because Everything I've looked up displays a different sensor to the one I have...
Here's a photo.
Cheers
I have a 2001 A3 1.8 8L pre face-lift.
My pre-cat sensor has an open circuit heater fault.
Everything i have read would suggest the sensors for my car are 4 pin, but only the post cat is 4 pin. The pre cat seems to be a 5 pin wideband sensor.
Does anyone know the heater pins to test? Further, does anyone actually know the part no. Because Everything I've looked up displays a different sensor to the one I have...
Here's a photo.
Cheers
