How do i stop the hard shaking at idle 1989 240sx searched, but no help - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

AN89HATCH · 02-23-2004, 03:15 PM

I have an 89 s13, and at idle i can not get it to stop shaking, it shakes as if its an old school muscle car haha, and it will not keep a steady idle, it idles at 700, then drops to 600 then up to 750, and will keep doing the same thing over and over agin, as the idle moves thats when the car starts to shake. Any suggestions as to what the problem is? thanks

nrcooled · 02-23-2004, 03:27 PM

Check all vacuum hoses and fittings. Clean out your throttle body along with making sure that your AIV valve is adjusted propperly.

If all of those check out then make sure that all your grounds are good

Thieu · 02-23-2004, 04:01 PM

I've had the same problem for a while. I replaced the IIC, air regulator, all vacuum lines, took off the EGR, took off the AIV, and it still does it. Everything ignition related is recent, as well as a Z32 fuel filter. Next step is a new TPS, FPR, and Fuel pump.

02-23-2004, 03:15 PM	#1
AN89HATCH Zilvia Junkie Join Date: Oct 2003 Location: BAY AREA Posts: 393 Trader Rating: (0) Feedback Score: 0 reviews	How do i stop the hard shaking at idle 1989 240sx searched, but no help I have an 89 s13, and at idle i can not get it to stop shaking, it shakes as if its an old school muscle car haha, and it will not keep a steady idle, it idles at 700, then drops to 600 then up to 750, and will keep doing the same thing over and over agin, as the idle moves thats when the car starts to shake. Any suggestions as to what the problem is? thanks __________________ slide your ride.com

02-23-2004, 03:27 PM	#2
nrcooled Nissanaholic! Join Date: Mar 2002 Location: Turn 8 'bout to get rolled by a SC'd ITR Age: 46 Posts: 1,849 Trader Rating: (0) Feedback Score: 0 reviews	Check all vacuum hoses and fittings. Clean out your throttle body along with making sure that your AIV valve is adjusted propperly. If all of those check out then make sure that all your grounds are good __________________ '91 hatch w/ SR Sold; '03 Evo Sold 401 HP; '03 MS Protege sold; '00 Evo 6.5 TME Sold 300HP

02-23-2004, 04:01 PM	#3
Thieu Zilvia Member Join Date: Sep 2003 Location: tx Posts: 199 Trader Rating: (0) Feedback Score: 0 reviews	I've had the same problem for a while. I replaced the IIC, air regulator, all vacuum lines, took off the EGR, took off the AIV, and it still does it. Everything ignition related is recent, as well as a Z32 fuel filter. Next step is a new TPS, FPR, and Fuel pump. __________________ 90 240sx daily driver/project car "SOHC it to me"