Fuel Cut?

[airhead04]

So today I was driving home and pulled out the parking lot, I was in 1st gear and was getting ready to shift when the car started jerking, it did it for maybe a second and then stopped. I was worried because as it jerked the rpms went up to about 5500rpm and I was afraid of rod knock. It went up due to me pressing the gas bc of the car jerking my foot slid forward, I know, stupid me. Anyways a little while later I was in second gear and I went to about 4500rpm and when I released the gas it jerked the car again.

Does anybody have any idea what might be the cause of this?
Any help is much appreciated.

 

[Keros]

It could be a boost leak, i.e. the intake depressurizing from a sudden, massive gap forming where a rubber piece of the intake splits open because of the pressure. If you're boosting high over stock or if you're at sea level and have a few exhaust mods, it's possible it's the ECU fuel cut point... but more likely it's a boost leak.

Make a boost leak tester.

 

[airhead04]

It could be a boost leak, i.e. the intake depressurizing from a sudden, massive gap forming where a rubber piece of the intake splits open because of the pressure. If you're boosting high over stock or if you're at sea level and have a few exhaust mods, it's possible it's the ECU fuel cut point... but more likely it's a boost leak.

Make a boost leak tester.

Ok, got one more question, lol, umm how do I make a boost leak tester?
Sorry Im 17 and its my 1st turbo car, so im a noob.

 

[supradreamz]

you just test the intercooler piping and other areas of the turbo tract for leaks...

 

[airhead04]

Cool, thank you for the help