P1135 Pre heating resistance above catalyser
I have diagnosed the above using multiscan previously on my 159tbi so I changed the upper lambda for a new bosch sensor. After several weeks I have the same message. Very frustrated to say the least. Multiscan showed a few weird parameters under the above fault code:
engine temp -35.* degrees
air temp - 48 degrees
engine speed 0 rpm (engine was idling in traffic)
What is causing this? Surely the lambda wouldnt give these readings?
Please can anybody help?