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Title: Knock and timing pull Post by: vtraudt on November 23, 2014, 06:43:34 AM Aside from knock voltage (absolute values), is there another parameter or algorithm that 'interprets' the knock sensor output to determine timing pull?
I have seen timing pull (3k rpm when boost arrives) at very low knock values. Does the ECU 'filter' the knock voltage and compare with crank position, cam position, rpm or secondary 'frequencies' in the knock voltage? What other parameters should I look at to determine the cause of the low rpm timing pull? Car: B6 1.8T ECU: 518AF Title: Re: Knock and timing pull Post by: nyet on November 24, 2014, 10:50:08 AM Does the ECU 'filter' the knock voltage and compare with crank position, cam position, rpm or secondary 'frequencies' in the knock voltage? All of the above and then some. Quote What other parameters should I look at to determine the cause of the low rpm timing pull? Torque intervention. Title: Re: Knock and timing pull Post by: vtraudt on November 27, 2014, 12:40:10 PM What parameter (s) should I log for 'torque intervention'? How are the parameters called?
Title: Re: Knock and timing pull Post by: nyet on November 27, 2014, 12:44:41 PM http://nefariousmotorsports.com/forum/index.php?topic=6955.msg67679#msg67679
http://s4wiki.com/wiki/Tuning#Torque_monitoring |