Whenever I press the throttle quickly, trying to get to WOT the engine cuts out, meaning the car bucks and stops accelerating like the fuel has been turned off momentarily to all 4 cylinders. Or like the air/fuel isn't right.
However, if I lead the throttle and don't smash it, it can rev to redline and build boost.
- My TPS is good, I tested that.
- All my vacuum lines are silicone, new, and not disconnected. I ran a smoke test to confirm and no smoke appeared anywhere but out the air filter, where you would to see smoke.
- My MAF is new
Anyone got any thoughts on what to check next?