Bro, if around 10 AFR, its richer than turbo setup already... hehe
Tried swapping out the ECU? Coz sometimes my ECU also will go crazy, especially when cruising.
After my project is completed, I might visit sifu wong to check out my ECU and prolly restore it.
Already did...first he use Auto BT ecu,super rich...when cruising the AFR damn rich around 10++,at first when accelerate its ok,but when the vacuum stabilize back during cruise steady speed,the AFR will be rich.Not sure whether my wideband meter playing tricks with me but this gives me headache...
Then swap to BT 6MT ecu...also same..
Then try another MAP sensor..also same...
Damn cant think anymore...after CNY i will bedah siasat that car...check all the wiring,sensors,vacuums...etc...
Could it be the O2 sensor? But my SVT+BT hybrid also no O2 sensor...never have problem,fuel save too..