P0171 System Too Lean Bank 1
That's concerning - and makes sense if all you did was throw parts on the car, but not update the tune for those parts... A custom tune would be needed for the VF52.
Also I would remove the intake - that also causes issues in these cars with the MAF readings... Can be handled by a custom tune if needed - but the stock intake is good for 400WHP - so not worth the aggravation at the level your at.
Lastly - you should avoid driving the car until all of this is sorted out - as you have conditions occurring that would do serious damage to engine internals.....
I would suggest having a reputable tuner review the car and properly tune it.