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P0118 Engine Coolant Temp Circuit High Input..?

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Old 07-01-2009, 07:19 AM
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cmn

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Default P0118 Engine Coolant Temp Circuit High Input..?
Hi! I got a CEL, so I bought an OBDII scan tool. It says I got a P0118 Engine Coolant Temperature Circuit High Input. What exactly is/can be the problem here? What can cause this CEL? The temp.gauge seems just normal. The car has just about 100,000miles on it, original airbox, Megan header, Berk TP and HKS catback (if that is relevant). Can anyone help me here? Very greatful for any help!
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Old 07-01-2009, 09:17 AM
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Make sure the ECT is plugged in.
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