Closed Loop Logic, Tipin
Posted: Tue Jan 16, 2018 8:43 pm
I have a few questions about the closed loop logic and Tip-in.
Some facts for my setup (racecar)
-Kpro4
-K24 (stock)
-no speed sensor, fixed 49mph input (just recently added speed input and haven't done any data logs but its working)
-LC-2 Wideband (Analog 2)
-Can output to AIM
Settings
-Closed loop: Max 40kpa
-Use Target Lambda tables
1) Under parameters->closed loop: There are 2 TPSvsRPM high and low tables. The help document says that the low table is the threshold to go from open loop to closed loop. Is this correct? Whats the purpose of these tables. They seem like Max TPS for closed loop, one for high cam and one for low cam...
2) For cold start my AFRCMD is 14.59. Its not attempting to use my closed loop Lambda table. Is this because my VSS signal is saying 49mph? This is my guess and so that closed loop idle logic is defeated. Im guessing with VSS now working it will be fixed.
3) Tip in lean spike: my TPS signal still bothers me. I am a rookie tuner but I dont think I see the tip in fuel working properly. I could be wrong. Also the spike looks like normal wideband delay. I have uploaded the datalog (it might be to big so I uploaded a picture instead). I am aware the part throttle tuning needs a lot of work. What are peoples feedback?
Some facts for my setup (racecar)
-Kpro4
-K24 (stock)
-no speed sensor, fixed 49mph input (just recently added speed input and haven't done any data logs but its working)
-LC-2 Wideband (Analog 2)
-Can output to AIM
Settings
-Closed loop: Max 40kpa
-Use Target Lambda tables
1) Under parameters->closed loop: There are 2 TPSvsRPM high and low tables. The help document says that the low table is the threshold to go from open loop to closed loop. Is this correct? Whats the purpose of these tables. They seem like Max TPS for closed loop, one for high cam and one for low cam...
2) For cold start my AFRCMD is 14.59. Its not attempting to use my closed loop Lambda table. Is this because my VSS signal is saying 49mph? This is my guess and so that closed loop idle logic is defeated. Im guessing with VSS now working it will be fixed.
3) Tip in lean spike: my TPS signal still bothers me. I am a rookie tuner but I dont think I see the tip in fuel working properly. I could be wrong. Also the spike looks like normal wideband delay. I have uploaded the datalog (it might be to big so I uploaded a picture instead). I am aware the part throttle tuning needs a lot of work. What are peoples feedback?