ka24e early fuel cut - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

R@ddy · 03-29-2009, 05:14 PM

hey guys just having some problems with my 89' sohc. i searched and searched but nothing

problem is that it hits an early fuel cut in 3rd at around 5000 Rpms, 4th 5000 as well, and 5th gear at around 3900-4100. what can be causing this? I'm pretty sure it's not timing. i also checked my MAF and its good

any suggestions?

thanks

s13 @ fullboost · 03-29-2009, 05:21 PM

things to look at not saying there your prob but just overview them fuel filter, injectors,MAF but you said you already looked at it, TPS sensor, harness for the injectors, air temp sensor, and vacume lines good luck man =]

toointoxicated62 · 03-29-2009, 07:06 PM

replace fuel filter with a z32 filter its probably dirty as hell unless you replaced it recently

R@ddy · 03-29-2009, 09:15 PM

^^could be...looks like the previous owner didn't take care of shit!
going to buy it soon

toointoxicated62 · 03-30-2009, 09:54 AM

Quote:

Originally Posted by s13_kidd

^^could be...looks like the previous owner didn't take care of shit!
going to buy it soon

alright let us know if that fixed it =]

R@ddy · 04-08-2009, 05:55 PM

ok, so i got a z32 fuel filter, and the same shit.
ugghhhh! im tired of this shit! can anyone help me out?

R@ddy · 04-13-2009, 09:31 PM

found the problem. well i have HUD on my car and since its not working and the cluster lights don't turn on, i guess its not sending a signal from the speed sensor to the ECU, which is causing it to have some sort of an early rev limit. for some weird reason my cluster lights decide when they want to work or not and when it lights up, it works perfectly fine.

dillondet · 05-01-2014, 01:14 AM

so buying a new cluster and replacing it fixed your problem? I have a similar problem with my 95 s14 zenki too, It has a fuel cut on 5th gear around 2500rpm, the rest of the others are fine. But on the freeway it cuts the fuel.

03-29-2009, 05:14 PM	#1
R@ddy Nissanaholic! Join Date: Jul 2008 Location: SoCal Age: 35 Posts: 1,632 Trader Rating: (32) Feedback Score: 32 reviews	ka24e early fuel cut hey guys just having some problems with my 89' sohc. i searched and searched but nothing problem is that it hits an early fuel cut in 3rd at around 5000 Rpms, 4th 5000 as well, and 5th gear at around 3900-4100. what can be causing this? I'm pretty sure it's not timing. i also checked my MAF and its good any suggestions? thanks

03-29-2009, 05:21 PM	#2
s13 @ fullboost Post Whore! Join Date: Dec 2007 Location: St.Petersburg,FL Posts: 2,550 Trader Rating: (15) Feedback Score: 15 reviews	things to look at not saying there your prob but just overview them fuel filter, injectors,MAF but you said you already looked at it, TPS sensor, harness for the injectors, air temp sensor, and vacume lines good luck man =] __________________

03-29-2009, 07:06 PM	#3
toointoxicated62 Leaky Injector Join Date: Jan 2009 Location: NY Age: 35 Posts: 148 Trader Rating: (1) Feedback Score: 1 reviews	replace fuel filter with a z32 filter its probably dirty as hell unless you replaced it recently

03-29-2009, 09:15 PM	#4
R@ddy Nissanaholic! Join Date: Jul 2008 Location: SoCal Age: 35 Posts: 1,632 Trader Rating: (32) Feedback Score: 32 reviews	^^could be...looks like the previous owner didn't take care of shit! going to buy it soon

04-08-2009, 05:55 PM	#6
R@ddy Nissanaholic! Join Date: Jul 2008 Location: SoCal Age: 35 Posts: 1,632 Trader Rating: (32) Feedback Score: 32 reviews	ok, so i got a z32 fuel filter, and the same shit. ugghhhh! im tired of this shit! can anyone help me out?

04-13-2009, 09:31 PM	#7
R@ddy Nissanaholic! Join Date: Jul 2008 Location: SoCal Age: 35 Posts: 1,632 Trader Rating: (32) Feedback Score: 32 reviews	found the problem. well i have HUD on my car and since its not working and the cluster lights don't turn on, i guess its not sending a signal from the speed sensor to the ECU, which is causing it to have some sort of an early rev limit. for some weird reason my cluster lights decide when they want to work or not and when it lights up, it works perfectly fine.

05-01-2014, 01:14 AM	#8
dillondet Leaky Injector Join Date: Feb 2013 Location: Westminster, CA Age: 28 Posts: 55 Trader Rating: (0) Feedback Score: 0 reviews	so buying a new cluster and replacing it fixed your problem? I have a similar problem with my 95 s14 zenki too, It has a fuel cut on 5th gear around 2500rpm, the rest of the others are fine. But on the freeway it cuts the fuel.