High o2 millivolts and knock retard
07-23-2006, 02:41 PM
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High o2 millivolts and knock retard --------------------------------------------------------------------------------
I Just took the car out and did some logging and I am getting knock retard and high 900 millivolt numbers when I floor the gas (closed loop they call this right). So I would assume that the car is running lean? What should I do to Fix this? I tune with LT1-Edit.
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I Just took the car out and did some logging and I am getting knock retard and high 900 millivolt numbers when I floor the gas (closed loop they call this right). So I would assume that the car is running lean? What should I do to Fix this? I tune with LT1-Edit.
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07-23-2006, 03:45 PM
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It may not be "false" knock. You could try better gas. Alot of detonation is caused by camshaft design. The factory gets away with 11.0:1 ratios because their cams are on very wide (116 deg.) LSA's. What is the lobe seperation and Intake center line of your cam? You may be creating a midrange scavenging pressure range that the computer cannot compensate for.
