Hi all,
Ok so I need some advice. I'm tuning a 2012 HSV Maloo with a LS3 today. The car is now fitted with a high lift camshaft. Before the car was fitted with the cam it was activating it knock retard at idle and any light throttle. It made no difference if it was in gear or park/neutral. The knock pattern does not look like normal knock and I certainly can't hear any. I have attached a data log that shows what I'm talking about at 14:58.40 I have also attached the tune used to make the data log. When I load the ute up for a power run this knock issue goes away. And yes I have decreased the sensor sensitivity not something I do lightly but wanted to see the effect on this issue. It made very little difference. I have looked over the ute and the exhaust does not seem to be contacting the body at any point. Any input welcome.