The crankshaft waveform on this vehicle does not appear to pull to ground. The waveform is a hall effect digital square wave. The high is 5volts and the low is approx 800 milli-volts. I have replaced the sensor with a new one and the waveform is just the same-800milli-volts. I would like to know if this is normal or not. The vehicle has a very intermittant problem in that there is no response from the throttle pedal at idle when about to set off. Just trying to trace the fault.