you do know that WD-40 is oil.... USE Electronic / Connector cleaner CRC packages it and its $4-$5 bucks IIRC.
Does your temp gauge on your instrument cluster work??
The temp gauge works off the same temp sensor. The computer interprets that data and then controls the gauge.
2001 ZX3 2.0L Zetec-
Hatch Nation #42
Going through Rebuild See "The TICK Build Thread" for details (http://www.focusfanatics.com/forum/showthread.php?t=289168&referrerid=62897)