RPM bounces up and down! WTF

[foulplay]

I have an RB20, with a FMIC, walbro fuel pump and exhaust.

http://www.youtube.com/watch?v=akPSLxk4R28Here is a link to a video of me pressing the gas peddle and when It makes it to 2k the RPMs drop about 500 and go back to 2k.

Ive changed the ECT sensor, O2 sensor, spark plugs, and checked to make sure all plugs were connected in the engine bay.

Ive ordered a NISMO AFPR.

Can anybody tell me what I need to do fix my problem?

ThaksDanny

[l0nestar]

Pape,

Are there any lights on your ECU, are you receiving any errors or CEL codes?

Sorry, it seems dumb, but I just wanted to check first.

[Shocker]

same thing my buddies 7M did, was a faulty TPS, try changing that out.

[DJButton]

thanks Shocker, what I was going to say exactly, try adjusting the TPS first though, had the same problem on my RB20.

[foulplay]

well what do ya know. I played with the TPS and my problem is now solved, i hope.

Thanks guys!

Danny

[Shocker]

well what do ya know. I played with the TPS and my problem is now solved, i hope.

Thanks guys!

Danny

good to hear, glad it worked out.

[S13 240SX]

i need ur help.. i was having that same problem too.. but if i unplug the tps and drive around it drives normal... but now i think i might of killed something because now today my car took a huge crap and now it wont even start at all.. just cranks... please help! reason why i drove around with tps unplugged cuz i think the guy who wired it for me did it wrong and have no idea how to fix the other person's wiring job cuz i didn't do it... so i just unplugged the tps like i said and it drove fine but now its all screwed up and now it wont start. please guys help me i can't stand the stress anymore.