KADE-T Stalling problem help!!!! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

redline240sx · 11-12-2009, 12:29 PM

Ok, i have a 1991 240sx Ka-t. I am trying to figure out why my car is stalling when comming to a sudden stop. Whenever I am in high speed or car is reving high it stalls out when I slow the car down to a stop..
whats causing this?

The car doesnt stall when i am driving on low RPMs or when i am driving in a slow speed. Sometimes when i noe the car is going to stall out when i slow down i give it gass to save it..

Im thinking IACV? TPS?

Any advice will be appreciated!!!!

jdm213 · 11-13-2009, 01:07 AM

it could be that or you may have a boost leak, inspect that and make sure the MAF is good to, there could be more reasons , but inspect those things first.

hotlavaflow · 11-13-2009, 01:58 AM

Mine did that just before it blew

nah I'm j/k but check your timing. What's your setup? Your mix could be a little too lean I've had that happen to me. I fixed mine with timing adjustment and S-AFC2.

fcdrifter20 · 11-13-2009, 11:02 AM

check ur timing. and r u running a bov. maybe its leaking. try dicontecting it and caping off the vaccum to it and see wut happens

redline240sx · 11-13-2009, 01:00 PM

my MAF is good, been checked already..
my setup is

550cc
SAFC2
Enthalpy Tuned ECU
Stock timing, havent mingle with timing since turboed
Dont think i have a boost leak, check for that a while ago, but it wont hurt to double check.

I will try disconnecting the bov and caping the vacuum line.

Any more suggestions?

M11's · 11-13-2009, 01:06 PM

you running with emmisions stuff on IM, iacv. probably vac/boost leaks.

swayray · 11-13-2009, 01:22 PM

your fuel might also be running too rich, have you tried leaning it out abit or is it already tuned specifically for your setup?

chetacheese · 11-13-2009, 01:27 PM

you have an af meter or wideband right?

rc1honda · 11-13-2009, 02:03 PM

Recirulate your BOV. The SAFC is measuring air that is not there anymore. When you come off boost and it blows the air through the BOV it causes a rich condtion quickly and stalls the engine. You can tune this out throught the SAFC on the decel air menu but i don;t know how.

hotlavaflow · 11-13-2009, 06:18 PM

Why did I get in my S13 and have the same problem today? sigh I'll let you know when I fix it.

redline240sx · 11-14-2009, 01:04 PM

well i have a tuned ecu with my setup, and i can run my tune ecu without my safc2 and it will run fine, so i dont think adjusting the safc will have anything to do with it.

And yes my wideband read 14_on idle which is pretty good.

I have took all the emission stuff off and block the EGR with a block off plate

11-12-2009, 12:29 PM	#1
redline240sx Zilvia Member Join Date: Jun 2008 Location: South Ozone Pk, NY Posts: 189 Trader Rating: (1)	KADE-T Stalling problem help!!!! Ok, i have a 1991 240sx Ka-t. I am trying to figure out why my car is stalling when comming to a sudden stop. Whenever I am in high speed or car is reving high it stalls out when I slow the car down to a stop.. whats causing this? The car doesnt stall when i am driving on low RPMs or when i am driving in a slow speed. Sometimes when i noe the car is going to stall out when i slow down i give it gass to save it.. Im thinking IACV? TPS? Any advice will be appreciated!!!!

11-13-2009, 01:58 AM	#3
hotlavaflow Zilvia Addict Join Date: Jul 2007 Location: BKLYN NYC Posts: 798 Trader Rating: (6)	Mine did that just before it blew nah I'm j/k but check your timing. What's your setup? Your mix could be a little too lean I've had that happen to me. I fixed mine with timing adjustment and S-AFC2. __________________

11-13-2009, 01:22 PM	#7
swayray The Nismo Shop Join Date: Aug 2005 Location: West Covina Nissan Posts: 939 Trader Rating: (15) Rides Gallery: swayray	your fuel might also be running too rich, have you tried leaning it out abit or is it already tuned specifically for your setup? __________________ http://www.thenismoshop.com http://www.prettys13.com http://www.lugnutmotorsports.com

11-13-2009, 06:18 PM	#10
hotlavaflow Zilvia Addict Join Date: Jul 2007 Location: BKLYN NYC Posts: 798 Trader Rating: (6)	Why did I get in my S13 and have the same problem today? sigh I'll let you know when I fix it. __________________

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11-13-2009, 01:07 AM	#2
jdm213 Zilvia Member Join Date: Sep 2009 Location: los angeles Age: 19 Posts: 177 Trader Rating: (0)	it could be that or you may have a boost leak, inspect that and make sure the MAF is good to, there could be more reasons , but inspect those things first.

11-13-2009, 11:02 AM	#4
fcdrifter20 Zilvia FREAK! Join Date: Nov 2007 Location: riverside, ca Age: 21 Posts: 1,469 Trader Rating: (13)	check ur timing. and r u running a bov. maybe its leaking. try dicontecting it and caping off the vaccum to it and see wut happens

11-13-2009, 01:00 PM	#5
redline240sx Zilvia Member Join Date: Jun 2008 Location: South Ozone Pk, NY Posts: 189 Trader Rating: (1)	my MAF is good, been checked already.. my setup is 550cc SAFC2 Enthalpy Tuned ECU Stock timing, havent mingle with timing since turboed Dont think i have a boost leak, check for that a while ago, but it wont hurt to double check. I will try disconnecting the bov and caping the vacuum line. Any more suggestions?

11-13-2009, 01:06 PM	#6
M11's Zilvia Member Join Date: Nov 2009 Location: Liberty Lake, Wa Age: 19 Posts: 184 Trader Rating: (0)	you running with emmisions stuff on IM, iacv. probably vac/boost leaks.

11-13-2009, 01:27 PM	#8
chetacheese Zilvia Junkie Join Date: Aug 2007 Location: in my car Posts: 528 Trader Rating: (11)	you have an af meter or wideband right?

11-13-2009, 02:03 PM	#9
rc1honda Zilvia Member Join Date: Aug 2008 Location: Chicago Age: 27 Posts: 257 Trader Rating: (5)	Recirulate your BOV. The SAFC is measuring air that is not there anymore. When you come off boost and it blows the air through the BOV it causes a rich condtion quickly and stalls the engine. You can tune this out throught the SAFC on the decel air menu but i don;t know how.

11-14-2009, 01:04 PM	#11
redline240sx Zilvia Member Join Date: Jun 2008 Location: South Ozone Pk, NY Posts: 189 Trader Rating: (1)	well i have a tuned ecu with my setup, and i can run my tune ecu without my safc2 and it will run fine, so i dont think adjusting the safc will have anything to do with it. And yes my wideband read 14_on idle which is pretty good. I have took all the emission stuff off and block the EGR with a block off plate