Something popping

[Eclipst]

Alright heres the deal, i redid my set-up and i put everything back together. now when i rip first and second gear, its fine but when i hit 5k on 3rd and fourth, i hear a pop. it's not a fuel cut though. it pops then the car jerks, then goes back up to normal boost. could this be due to a mafs problem? i know i have a vacuum leak which i will fix tomorrow, but i doubt that is the problem. could ne1 suggest to me anything about it? all responses are greatly appreciated.

 

[1fast97gsx]

my car did this last year too. It's a misfire? I don't know what exactly caused mine, but I ended up just rebuilding the whole motor. Things to check are coilpacks, ignition module, plugs, wires, and injectors. Are you leaking fuel? A pinched injector O ring could cause that too IMO.

 

[Eclipst]

it was perfectly fine until i pulled out the mafs, exhaust mani, 02, turbo, all the lines, and put it back together. i was thinking maybe i just have to reset the ecu. ne 1 thin kthat could solve it??

 

[Sephroth57]

any resolution on this? im having the same problem

 

[Eclipst]

any resolution on this? im having the same problem

my set-up was externally gated, and i realized that i plugged a vacuum line on top of the wg instead of the side. Solved the problem. Let me know if this helps.

 

[Erok]

http://www.machv.com/macvleaktes.html if you want to check for boost leaks get this might help