Would you believe it was the MAP sensor causing the problem all along and there were no fault codes to indicate such?
I now have 3 OBDII readers and a temperature gun in the stock pile, the first two OBDII readers would not link up to the computer. I accidentally found/purchased the third reader and it confirmed the overheating.
For the meanness of it I replaced the MAP sensor and after a week of driving and a tank of gas the gauge never got over 205°.
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'75 Cuddy with '00 Johnson Ocean Pro 150 horse
Benny
Last edited by tsubaki; 01-13-2014 at 05:29 AM.
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