Sorry for the cross post, but I need to find an answer to this quickly if possible!
Getting desperate now in trying to get the UNI-Q mapped to the OEM ECU, following installation of the Rotrex Supercharger. I know that not everyone likes the Dastek UNI-Q, but I am where I am at present, but I have a simple problem.
Despite having the ability to change fuelling and timing for the map held within the ECU, this is only any good when the car is running Open Loop, instead of Closed Loop (closed being via feedback from the Lambda sensors etc). Typically you'd expect Open Loop from say 60% throttle onwards and/or approaching Atmospheric on the MAP. We've clamped MAP output to 4.75v (atmos being 4.8v ordinarily), but regardless of the bosst, % throttle or load, it won't go Open.
Only time Open Loop engages is on closed-throttle coastdown. In Closed Loop it is constantly trying to set AFRs in the 13.5-14.7 range, which is too lean for forced induction. Very very annoying.
Anyone got any idea as to what makes this ECU use its 3D map rather than closed loop lambda?
Car is a 2006 Panda 4x4 with fly-by-wire TB and Marelli IAW 59F ECU
Fingers crossed!
Thanks,
Phil
Getting desperate now in trying to get the UNI-Q mapped to the OEM ECU, following installation of the Rotrex Supercharger. I know that not everyone likes the Dastek UNI-Q, but I am where I am at present, but I have a simple problem.
Despite having the ability to change fuelling and timing for the map held within the ECU, this is only any good when the car is running Open Loop, instead of Closed Loop (closed being via feedback from the Lambda sensors etc). Typically you'd expect Open Loop from say 60% throttle onwards and/or approaching Atmospheric on the MAP. We've clamped MAP output to 4.75v (atmos being 4.8v ordinarily), but regardless of the bosst, % throttle or load, it won't go Open.
Only time Open Loop engages is on closed-throttle coastdown. In Closed Loop it is constantly trying to set AFRs in the 13.5-14.7 range, which is too lean for forced induction. Very very annoying.
Anyone got any idea as to what makes this ECU use its 3D map rather than closed loop lambda?
Car is a 2006 Panda 4x4 with fly-by-wire TB and Marelli IAW 59F ECU
Fingers crossed!
Thanks,
Phil