Hello,
I have had the honor of being helped in the past by some very smart and generous people here on the forum, I am reaching out to everyone for help again. I am trying to tune my 2013 ZL1 after rebuilding the engine. BBK throttle body - BAD fixed (LS3 90mm), Brisk spark plugs - BAD fixed (NGK TRX7 plugs gapped to 0.030").
I am trying to do the road part of my tune before going to the dyno to finalize everything. I got my start up and idle fixed, coast down clutch in surge or die fixed. But now My AFR reads rich but my long and short term readings are lean... My AFR reads off of the AEM AFR gauge and the long and short term readings are from the car. How can one read 20% rich and the other 20% lean...
Need help sorting this out do not want to drive car like this and risk the engine!!
Here are my last tune and log from today. Please help me.