Jason, BTW, this reminds me (I forget a lot of things), I did not yet see your email yet (from our phone a week ago), you might want to resend it.
Jason, BTW, this reminds me (I forget a lot of things), I did not yet see your email yet (from our phone a week ago), you might want to resend it.
Thank you guys. I'm going to hopefully get some data logged this weekend for auto ve.. Can you guys take a quick check and make sure my PIDs are ok? Is it ok that my wideband is lambda and the commanded is in afr?
Sorry Joe! Got busy and the customer ended up picking up his truck. I think there was a vacuum leak causing havoc with idle and decel.Originally Posted by joecar
00 Silverado Z71, LQ9 w/ LS3 heads, BTR cam, Whipple 2.9@8#, 4l80E
ah, ok, no worries (I see a lot of vacuum leaks).
Any help guys? Do i have the correct PIDs to autove with my serial WB in lambda?
I'm still looking thru your stuff...
hold off joe... I ran the autove 3x today and got things a little better. I'll post a better log/tune file. Thanks again for your help.
Joe, here is my latest tune/log. In this tune i have already applied the AUTO Ve Ben to it from that log. I've also attached a shortened log of trying to hit boost. Truck runs pig rich and wont boost. Do i need to take VE out of A0009 to lean it out some? I can't run Auto VE on the boost table because its so rich it wants to sputter. Also having an issue after driving for a while the truck will stall once i go to park. Truck also wants to stall coming to a stop but it usually catches itself. Again as always thank you for taking the time. I'm trying to get this truck lined out and learning as i go..
Tuning a boosted engine while learning the basics... now there's a recipe for disaster.
I don't do much tuning on turbo boosted engines. You really need to get the EGT into the happy zone for the turbo to work well, which can be an absolute PITA... but that's something to worry about AFTER you get the basic tune right.
I might be able to give you a nudge in the right direction. Does your engine have a MAF sensor fitted?... and what mods have been done besides what you've already told us about?
+1 on what statesman said, be careful to not allow knock.
First get NA tuned/running right (including idle).
Not going into boost indicates a physical problem, you will have to fix this first.
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