I am new to the nitrous stuff and just go my bottle filled yesterday. i went out tonight on a backroad and tried it. i tried to kick it on in 3rd gear so that i could "feel the difference" but nothing. I have the nos 5115 kit. I tried to trouble shooting page in the NOS hand book... well, some of them, i tried to play at like 10pm.. too dark to trouble shoot. I did make sure that all my grounds are connecting, the lines are nice and snug, the activation switch lights up (which means thats working), i have 1100psi of pressure, the throttle linkage is touching the microswitch. I just dont get it..... just help needed.