Have problem with my 240SX!!!

[CleanCutSX]

Just want to warn you, my english isn't as well as I would like!!

So, the problem is, my idle is always at 1000RPM, even if I adjust the idle, the computer reput the RPM at 1000RPM!! Also, sometimes, when I'm rolling in fourth gear at like 55 km/h, sometimes if I release the gas pedal the car continue to gasing, stop, compress, give gaz, stop, compresse, it's ****in a pain in the ***!!!!!

I just went to Nissan and plugged the car on the Consult II, and all runs like it does, exept a ****** bad engine code, Cam shaft positioning sensor!! But I don't understand why the code pop 1 time when a get the car off, and another when a start it!!!

I really need your opinion about that, I don't know what to do, since Nissan just told me they aren't able to found the problem!!!!

[neverlift]

the high rev could be from overtight or binding throttle cable, check the cable under the hood for slight slack like 1/4" ,look under dash to see if the pedal comes up freely. Nissan dealerships seem to just suck sorry bout that