Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - Sr swap idles funny after warmed up a little

DinoMan · 05-22-2011, 07:31 PM

So i finished my swap a couple weeks ago and its been driving okay. But i've noticed that when i start my car and let it idle for a bit its starts going up and down. When i first start the car itll idle around 1500. after maybe 30 seconds to a minute the idle is down to about 1000. But it seems when it starts idling lower itll slowly rise up for 2k revs and drop back down to 1300 then slowly back up again. if i give it gas, itll come back down and idle good for like 3 second ands then start to build up slowly and do it all over again. Not sure what the problem can be. Any ideas?

05-22-2011, 07:31 PM	#1
DinoMan Zilvia Junkie Join Date: Feb 2011 Location: Pensacola Fl Age: 30 Posts: 362 Trader Rating: (2)	Sr swap idles funny after warmed up a little So i finished my swap a couple weeks ago and its been driving okay. But i've noticed that when i start my car and let it idle for a bit its starts going up and down. When i first start the car itll idle around 1500. after maybe 30 seconds to a minute the idle is down to about 1000. But it seems when it starts idling lower itll slowly rise up for 2k revs and drop back down to 1300 then slowly back up again. if i give it gas, itll come back down and idle good for like 3 second ands then start to build up slowly and do it all over again. Not sure what the problem can be. Any ideas?