Hello, I have a 93 TT with the basic mods (Intake, downpipe, catback, midpipe, smic, and PFC). Ever since i got the car, the thing bucks when your in like 2nd or 3rd gear, and like 3,000 RPM. It is just annoying me, and i have played with the TPS, and a few other things. After speaking to Chris at RX7.com, he suggested the Hyper Ground System. I bought it, but not too sure where and how to install it. Have any of you guys installed this item, and if so, can you outline it to me. I hate to take this to a mechanice who would be puzzled just as me. Also, do i take off the entire Stock ground system?

Any help would be greatly appreciated

 

Im doing that right now too. i think all there is to it is finding your stock grounds then taking the wires you get from them and kinda play connect the dots from point to point untill you get to your battery.

the only problem i am having is that i cant find my stock grounds..... I found one by the oil tank next to the spark plugs, but other than that, I cant find any of them.

Any sugestions or comments?

 

look on the driver's side wiring harness, there should be a ground mounted to the bay under all the fuses, there should be another on the alternator, there are a couple more, but you just have to look for them

 

You may want to check your O2 sensor. I had bad bucking problems during low RPMs and I found out that my O2 sensor needed to be replaced.