ZR-1 Net Registry Forums - View Single Post - Is you Knock sensor taking performance down for the count?

mike100 · 05-10-2012

I have not observed much pulled timing on my tech1 data. maybe a degree or two and a small ping when it is hot, but mostly it is showing the full amount of timing when I have done the recording under accel at the data rate the scanner is capable of.

The biggest question is why does it pull timing when you disconnect the sensor? Does it have to have a grounded signal to run properly?

I can't recall, does it list a timing retard number? I do know that the total timing shown is 6 degrees less because the raw value does not include the 6 degrees of lead cast into the sensor mount/crank notch.

I will check it next time I change the oil out of curiosity.

05-10-2012	#2
mike100 Join Date: Feb 2011 Location: San Marcos CA Posts: 1,786	Re: Is you Knock sensor taking performance down for the count? I have not observed much pulled timing on my tech1 data. maybe a degree or two and a small ping when it is hot, but mostly it is showing the full amount of timing when I have done the recording under accel at the data rate the scanner is capable of. The biggest question is why does it pull timing when you disconnect the sensor? Does it have to have a grounded signal to run properly? I can't recall, does it list a timing retard number? I do know that the total timing shown is 6 degrees less because the raw value does not include the 6 degrees of lead cast into the sensor mount/crank notch. I will check it next time I change the oil out of curiosity.