Hi, i´m having a trouble with my eg, we just swapped a b16a engine on the car.
Go to test it, all ok, no check light, good afr on idle and light trohttle, wot is ok, but when release the foot of the pedal after wot, the afr was very lean.
The car run very lean after wot. We shut down the engine, start the car and no more problem, good afr on the entire map.

What can make the car have that problem after wot???


thanks