A simple test if you have a multimeters handy that measures ohms gnat can be done quickly on the car. A faulty part can cause misfire and/or heavy fuel consumption.
The CTS is a key component of the Rover SD1 Efi System and, in truth, in conjunction with its wiring and connector, not very reliable. Recent anecdotal evidence indicates a fairly high fail rate which has a serious effect on the operation of the system. eg: The CTS and/or its wiring can go open circuit, falsely signalling the ECU that the engine remains cold, which in turn computes a rich air / fuel mixture resulting in significant overfuelling. At best, this produces very lumpy performance and at worst, floods the engine such that it will not start or run. Fortunately it is easy to test.
Read the full article at …… http://www.vintagemodelairplane.com/pages/Rover_Technical/TempSensor01.html
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