Too lean in open driving
Posted: Sun Jun 05, 2011 2:19 am
Hi,
I´m having a issue when the car goes in open loop. It´s goes too lean. In closed loop it´s close to 14.7 but when it goes to open, suddenly goes lean.
I added fuel step by step but doesn´t goes richer. Even with big values, but always remains the same.
I´m thinking that the fuel tables aren´t the fault.
The injectors are 750cc from RC. I changed in the setup. The fuel pump it´s a Walbro, but I didn´t change the fuel pressure.
The calibration I used to start tunning was the base calibration for MAP tunning for 750cc injectors. What could be wrong?
The setup it´s a 3" custom CAI, Rotrex SC, Toda HE, and 2.5"Custom Exhaust.
I´ve attached a datalog to explain what I´m saying.
Example: In the 2:28 You could see that the injector time doesn´t goes higher in Open Loop, but in the tables has a value of 11.000 aprox (too high!!).
Thanks.
I´m having a issue when the car goes in open loop. It´s goes too lean. In closed loop it´s close to 14.7 but when it goes to open, suddenly goes lean.
I added fuel step by step but doesn´t goes richer. Even with big values, but always remains the same.
I´m thinking that the fuel tables aren´t the fault.
The injectors are 750cc from RC. I changed in the setup. The fuel pump it´s a Walbro, but I didn´t change the fuel pressure.
The calibration I used to start tunning was the base calibration for MAP tunning for 750cc injectors. What could be wrong?
The setup it´s a 3" custom CAI, Rotrex SC, Toda HE, and 2.5"Custom Exhaust.
I´ve attached a datalog to explain what I´m saying.
Example: In the 2:28 You could see that the injector time doesn´t goes higher in Open Loop, but in the tables has a value of 11.000 aprox (too high!!).
Thanks.