stalling out

[tew photy]

when im cruising anywhere from 35+ and put the car into neutral as i slow down, my s13 has been stalling out and dying on me. if i just put it in neutral for a second then downshift, i can keep it alive, but anytime i put it in neutral and coast, or when i coast and brake, it stalls. anybody have the same problem or any ideas? ive heard it could be the EGR valve or something along those lines? any ideas..

[initial_24d]

if you look down from the top through the middle of the intake manifold youll find a idle adjustment screw when your car is warm and its rpms start dropping like you say adjust it to idle at like 800 rpm

[96s14kat]

i have the same problem w/ my s14. adjusting the idle didnt work for me. im still trying to fix the problem but having no luck yet. let me know if you get yours working.

[iknowyoulike]

i've been having some similar problems to the ones that you had some say that it could be due to an old O2 so check that out.. also check the TPS too it could be caused by that as well. My car stopped doing this after i cleaned out the Throttle though so it could be anything.. but hopes this help you out too good luck!!

Oh yeah one more thing the search button is your best friend here...use it..learned it the easy way..you can find a lot on this topic it's been post losta time. even by me haha :bigok:

[96s14kat]

so you cleaned your throttle and it fixed it? did you just clean out the TB?

[mistaanime]

bad maf...or juss clean throttle.

[idlafie]

I replied to this in the previous post...Engine Cutting out...

Check the following items:
1). EGR valve -
a). Inspect the vacuum lines running to it - are they okay or are they torn/cracked/leaking?
b). Is the EGR valve sticking open? Take your hand & cup it around your EGR valve. Your fingers should feel the underneath portion of the valve. As the car is running & your hand is cupped around the EGR valve, pull your fingers up & gently push in the BOTTOM portion of the EGR valve. You should hear your idle start to drop - push it too fast & your engine will stall. It's possible that you have carbon buildup in the EGR valve / system. Spraying a can of carburator cleaner into the vacuum line at the top of the EGR valve & pushing up on the valve at the same time can help clean out the carbon buildup.
2). AIV valve - it may be dirty or clogged. There's a reed in there that may have gone bad.
3). Check your idle - disconnect the Idle Adjust harness..should be next to the TPS sensor - three wires...black/white/ green..???. Your car should be idling at 700-750 rmp. Readjust if necessary. Use the phillips head screw located on the passenger side of the engine towards the back of your intake manifold..almost directly below your EGR valve. You GOTTA look for it...it's hard to spot. Turn that screw accordingly.
4). Check your ground wire running from your engine block directly above your 02 sensor to the firewall to the left of the brake booster. A loose or shorted ground wire will cause a funny idle or a NO START problem. DONT ask me how I know this.
Anyhow hope this helps...
Diego
'95 SE
PS:
Have you tried pulling the Diagnostic Trouble Codes off your ECU?? To figure out how to do that go to www.240sx.org. Click on the FAQ link & scroll down till you get to ECU..Reading Trouble Codes..SOHC or DOHC.

Additional: Spraying the throttle body with carb cleaner along with swapping out the fuel filter AND pouring in a bottle of fuel injector cleaner at the next gas tank fill up helps, but you have to make sure your car is in good running shape if you want to see an improvement. When was the last time you did a tune up? Changed spark plugs, inspected spark plug wires and changed distributor cap & rotor? You wouldn't believe how many S13 & S14 owners whom I've met or talked to who've had idle problems but yet dont' maintain their cars very well. Anyhow, hope this helps..
Diego

[96s14kat]

thanks ill check those things, but remember, this problem just started when i got my turbo on the car, so im 99% sure it has something to do with that.

[idlafie]

thanks ill check those things, but remember, this problem just started when i got my turbo on the car, so im 99% sure it has something to do with that.

I was responding to the original poster who had a NA engine & not a turbo. Your turbo problem may be due to a vacuum leak somewhere. Sorry.. I don't have any experience with turbo KA motors. I mostly work/tune on stock KA motors.
Diego
'95 SE...stock engine..