hi folks, got a couple of problems that i would e grateful for any help. I have a 940se 1992. After an overheating cooling system the lambasond emissions light came on. Two months later it is still on, The engines own fuel\ emissions sensor ( the small black module that emits a kind of morse code with red led s )says all is well. What further checks do i need to do ? apart from this the car appears to be running as it was.
I also have developed ( probably at the same time as the initial radiator crumble) a small leak coming from either the heater matrix, or the heater water
pipe inlet (within a rubber gromet inside the car) heating temperature asembly ( cable type ). it is difficult to tell as the water could have leaked in one area and ran down to the matrix. Is there any known weak points within this assembly and does the inlet(withing the gromet) come out. I have tried and tried but it seems fast.

Many thanks
Guy