Sr20det extremely lean all of a sudden

[Rocketbunny240sx]

Originally Posted by zurud

You need to rephrase your statement. I don't think anybody understood you.
Do you have wideband o2 ?
What is your "fuel management"?

Fuel management system basically my ecu is trying to idle on its own without a iacv so that has been completely taken out. It uses the mad and o2 to set the car at the lowest possible rating. So that it wont be fricken rich as fk while idling and when boosted it still can deliver super rich fuel. Altho i do have to support it once a while while pulling out of gear or down shifting because it stalls quite easily the idle will sometimes bounce for 1200-2000 and then it will stabilize itself.