Idle problem? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Slevin86 · 01-19-2010, 04:31 PM

OK i have a S-13 with a KADE24 engine that i just finished replacing the timing chain on it and everything is hooked right and i started it today for the first time in four or five months and she starts up just fine and will just fine when reving the engine. But when you let it idle she just dies. Like not enough fuel is getting to it or something. But i am not to sure that is the case. I am going through everything and checking everything that has to do with the idle system but i am not to sure what it might be. Any thoughts or suggestions?

tooslick · 01-19-2010, 04:32 PM

sounds like a vacuum leak, check all of your hoses.

Z U L8R · 01-19-2010, 08:29 PM

try to turn up the idle a little bit, on the passenger side in the very back of the intake manifold on the side is the idle air control valve. you'll see a little phillips head screw, loosen that screw a little to raise the idle.

Dave

Rabboni · 01-19-2010, 08:44 PM

A vacuum leak would cause a high idle. I would check the idle air control, or adjust the idle up a little.

Slevin86 · 01-20-2010, 01:56 PM

ok well i checked all the hoses and none are leaking. and i was told that there is an idler control box that sits under the intake that sometimes gets stuck when the car sits for a long time with out starting. so i am going to mess with that and see what happens. thanks for help everyone

SinGarage · 01-20-2010, 04:51 PM

Double check your base timing too. I just recently did the same thing off my friends S14 and same situation also. Then I figured out I was off a tooth on the distributor.

Slevin86 · 01-20-2010, 04:53 PM

ok i'll check that as well. but does any one know where you can get that idler box from? or the actual name of the part.

drftmark · 01-20-2010, 05:16 PM

You should just be able to clean it out.

Slevin86 · 01-20-2010, 11:00 PM

ok so i can clean it up? i dont really have to replace it if it is no responding at this time?
and is it ok do drive around with this particular problem or would it be adviced not till there is time to fix it?

tooslick · 01-22-2010, 01:29 AM

worst that could happen is you stall, that's it. you can drive it arround. just get some throttle body/carb cleaner and clean it out. Also, clean your throttle body. Sometimes oil/gunk clogs it and gives you similar issues.

Slevin86 · 01-22-2010, 09:38 PM

ok that is good to know. but now it doesn't matter since i accidently punched a hole into it. so i have to take it off and replace it. however here is a question. can that be bipassed or is there a way around not having one?

koukimonster139 · 01-22-2010, 09:40 PM

you should just "mess" with everything until it works.... that usually works

Slevin86 · 01-23-2010, 12:39 AM

well the intake manifold is coming off since i dropped an extension down there and i cant get it out. plus i need to see if i really did screw up the IAC Valve. any suggestion on a quick and easy way of doing this? I have the factory manual and it doesn't give me a walk through procedure of how to. It just shows a brake down picture of that side of the engine.

Slevin86 · 01-23-2010, 02:32 PM

cause right my main concern is am i going to have to disconnect the fuel lines in order to take off the manifold?

01-19-2010, 04:31 PM	#1
Slevin86 Join Date: Aug 2009 Location: San Antonio Texas Age: 38 Posts: 23 Trader Rating: (0) Feedback Score: 0 reviews	Idle problem? OK i have a S-13 with a KADE24 engine that i just finished replacing the timing chain on it and everything is hooked right and i started it today for the first time in four or five months and she starts up just fine and will just fine when reving the engine. But when you let it idle she just dies. Like not enough fuel is getting to it or something. But i am not to sure that is the case. I am going through everything and checking everything that has to do with the idle system but i am not to sure what it might be. Any thoughts or suggestions?

01-19-2010, 08:29 PM	#3
Z U L8R Zilvia FREAK! Join Date: Jan 2007 Location: Georgia Age: 43 Posts: 1,194 Trader Rating: (0) Feedback Score: 0 reviews	try to turn up the idle a little bit, on the passenger side in the very back of the intake manifold on the side is the idle air control valve. you'll see a little phillips head screw, loosen that screw a little to raise the idle. Dave __________________ RB25 280z GT30/76R 441hp/381tq 11.9@125

01-19-2010, 08:44 PM	#4
Rabboni Zilvia Member Join Date: Aug 2009 Location: Fairfield, CA Posts: 230 Trader Rating: (0) Feedback Score: 0 reviews	A vacuum leak would cause a high idle. I would check the idle air control, or adjust the idle up a little. __________________ Baling Wire-The Duct Tape Of Champions

01-22-2010, 09:40 PM	#12
koukimonster139 Zilvia FREAK! Join Date: Jan 2006 Location: Birmingham, AL Age: 38 Posts: 1,379 Trader Rating: (0) Feedback Score: 0 reviews	you should just "mess" with everything until it works.... that usually works __________________ ho ha ho chi chi

01-19-2010, 04:32 PM	#2
tooslick BANNED Join Date: Dec 2009 Location: fountain valley Age: 36 Posts: 41 Trader Rating: (0) Feedback Score: 0 reviews	sounds like a vacuum leak, check all of your hoses.

01-20-2010, 01:56 PM	#5
Slevin86 Join Date: Aug 2009 Location: San Antonio Texas Age: 38 Posts: 23 Trader Rating: (0) Feedback Score: 0 reviews	ok well i checked all the hoses and none are leaking. and i was told that there is an idler control box that sits under the intake that sometimes gets stuck when the car sits for a long time with out starting. so i am going to mess with that and see what happens. thanks for help everyone

01-20-2010, 04:51 PM	#6
SinGarage Zilvia Addict Join Date: Sep 2009 Location: 818 SoCal Age: 48 Posts: 674 Trader Rating: (11) Feedback Score: 11 reviews	Double check your base timing too. I just recently did the same thing off my friends S14 and same situation also. Then I figured out I was off a tooth on the distributor.

01-20-2010, 04:53 PM	#7
Slevin86 Join Date: Aug 2009 Location: San Antonio Texas Age: 38 Posts: 23 Trader Rating: (0) Feedback Score: 0 reviews	ok i'll check that as well. but does any one know where you can get that idler box from? or the actual name of the part.

01-20-2010, 05:16 PM	#8
drftmark Zilvia Junkie Join Date: Nov 2005 Location: tx Posts: 524 Trader Rating: (5) Feedback Score: 5 reviews	You should just be able to clean it out.

01-20-2010, 11:00 PM	#9
Slevin86 Join Date: Aug 2009 Location: San Antonio Texas Age: 38 Posts: 23 Trader Rating: (0) Feedback Score: 0 reviews	ok so i can clean it up? i dont really have to replace it if it is no responding at this time? and is it ok do drive around with this particular problem or would it be adviced not till there is time to fix it?

01-22-2010, 01:29 AM	#10
tooslick BANNED Join Date: Dec 2009 Location: fountain valley Age: 36 Posts: 41 Trader Rating: (0) Feedback Score: 0 reviews	worst that could happen is you stall, that's it. you can drive it arround. just get some throttle body/carb cleaner and clean it out. Also, clean your throttle body. Sometimes oil/gunk clogs it and gives you similar issues.

01-22-2010, 09:38 PM	#11
Slevin86 Join Date: Aug 2009 Location: San Antonio Texas Age: 38 Posts: 23 Trader Rating: (0) Feedback Score: 0 reviews	ok that is good to know. but now it doesn't matter since i accidently punched a hole into it. so i have to take it off and replace it. however here is a question. can that be bipassed or is there a way around not having one?

01-23-2010, 12:39 AM	#13
Slevin86 Join Date: Aug 2009 Location: San Antonio Texas Age: 38 Posts: 23 Trader Rating: (0) Feedback Score: 0 reviews	well the intake manifold is coming off since i dropped an extension down there and i cant get it out. plus i need to see if i really did screw up the IAC Valve. any suggestion on a quick and easy way of doing this? I have the factory manual and it doesn't give me a walk through procedure of how to. It just shows a brake down picture of that side of the engine.

01-23-2010, 02:32 PM	#14
Slevin86 Join Date: Aug 2009 Location: San Antonio Texas Age: 38 Posts: 23 Trader Rating: (0) Feedback Score: 0 reviews	cause right my main concern is am i going to have to disconnect the fuel lines in order to take off the manifold?