Three wire coolant sensor wiring?

[99bluetahoe]

A = black(gray 6.0)............coolant temp input to ecm, low reference
b = yellow...........coolant temp input to ecm, sensor signal
c = green............coolant temp input for cluster mounted temp gauge

[gagliano7]

Where did you get the three wire sensor?

[Lextech]

The 3 wire CT sensor part number is #12551708
The connector pigtail is part number #12102748

Jeff

[gagliano7]

Thanks .I ordered it.