lean idle
04-24-2007, 05:08 PM
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lean idle Hey guys I need some guidance here. I recently installed a cam in my 02 M6 z28. It’s a full bolt on car and I am using the TSP 228r cam. I have been working on the idle here the past few days to where it starts cold/hot really good. I have almost no surging issues and at speed to idle works great. My big problem is if I shut the car off, start it up my A/f is right at 14.7 until closed loop is commanded. At that point my 02,s flat line for about 30 sec, during this time my Afr is really lean, 16.5, 17.0. After this 30-sec or so it levels back out to 14.7 and stays that way the remainder of the time the car is running at idle. I do have the Proportional Idle disabled under OL/CL. What am I missing here? . Thanks in advance for any help
