If you have a Ohm meter, pull the connector and put probes into pin 1 and 2 you should read around 800-1000 ohms, then repeat the same test for pin1 and 3 and it should show infinite (meaning open/as if not touching). If either of these is not the case I would replace the CPS.
Hope that helps
H
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Previously owned:
2000 Boxster S 3.2 Ocean Blue / 1974 911 Targa Silver
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