I Installed a few weeks ago my JG manifold and throttle body and my car is idling rough. It starts fine but as soon as I drive it a while and push the clutch in the car will jump from about 1100 rpms to 1500 rpms for about 10 seconds, give or take a few. But then it will go down to about 800 and stay around there with out going up or down to bad. I took it to honda and the master tech said my air intake tempature sensor was reading the car was like 20 below farenheit. Which cannot be since I live in Florida. So I replace the sensor. He also said somewhere I pulled one of the wires from my TPS sensor since it was not reading. So I stripped the wire and soddered it to the beginning wiring harness in the car. This helped quite a bit. But it is still doing it and it seems like it is getting slightly worse. Any ideas? I kinda wish I bought the Skunk2 manifold. But I really do not want to rip that thing off again. My car is NA and I noticed also since I installed it that its running very rich.

 

Try taking the JG throttle body off and putting back the stock t/b. If the car is fine then it's your JG throttle body. I had the same problem with the JG (Just Garbage) and you need to adjust the TPS, which is really hard.