Modified HighTime routine too:

Code:
MeasureHigh:
  HighTime = 0
  While Signal = 0 : WEND	  ' Wait for low  
    While Signal = 1              ' Measure high level
    HighTime = HighTime + 1       ' Resolution is 100us, change if needed
    PauseUS 92                    ' Tweal to calibrate, depends on actual loop time
  WEND
  LCDOUT $FE,$c0, "T2:",DEC hightime, "  "
RETURN
it returns 9.

Feels like MCU is operating very slow?