So my friend has a k20z3 with k24a2 block, for the last couple months the car has been jerking hard sometimes before it hits vtec and stays where vtec kicks in and sounds like it’s hitting rev limiter
When we disconnect TPS and connect it again it stops doing it but only for a while then it starts doing it again and we have to adjust it again, this is his 3rd TPS sensor because we thought it was a bad one. We then adjusted it by twisting it 180 degrees and it seems to work longer without having any issues
HELP!!!!!

 

Are you using an aftermarket throttle body?

 

Yes he is, I was thinking throttle body must’ve been the issue and try switching mine with his