KA24DE running crappy :/ - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

NismoDriverS13 · 06-27-2014, 08:14 PM

I got a 1992 Nissan 240sx hatch

I just threw on coilovers not too long ago and was driving around the other day, made a right turn and all of the sudden the car started shaking and idling like complete crap.

felt like running on 3 cylinders, took it back home and changed out spark plugs and spark plugs wires, the whole fuel rail and injectors, cleaned maf and my fuel pump is relatively new...

problem went away, then yesterday I was driving around and same thing started happening but quickly went away after accelerating.

anyone know wtf is going on? i'm gonna clean the aac iacv later and the maf

but anyone had something similar and know how to fix this?

quickdiversion · 06-27-2014, 08:23 PM

How low is the car now?
Did you rub through some of the harness under the passenger fender.

It's common if you didn't tuck the harness when dropped it.

indomiekid1 · 06-27-2014, 08:30 PM

ha, was about to say the same thing quickdiversion!

quickdiversion · 06-27-2014, 08:32 PM

On a 240, lowering the car and harness tuck under the fenders go hand in hand!

*anti tyler* · 06-27-2014, 08:45 PM

It's possible you have some codes ready to be read on your ecu. Check those before spending any money.

NismoDriverS13 · 06-28-2014, 11:44 AM

I tucked harnesses and I'm not that low to rub through, ecu did not throw any codes...

angel mkiv · 06-28-2014, 12:32 PM

Did you double check the harness though?maybe you can't hear it rubbing or whatever but all it takes is a bump at a decent speed being low could damage the harness

quickdiversion · 06-28-2014, 12:56 PM

Very true. You don't have to be super low to hit a bump and run.
How high did you tuck the harness? Side or above the fender rail.

Also could have be damaged before you got it and now that you moved the harness it moved the damaged wires and the are touching.

NismoDriverS13 · 06-28-2014, 02:52 PM

I'll run through the harness again just to make sure...gonna check compression right now too.

quickdiversion · 06-28-2014, 03:14 PM

sounds good.
It never hurts to check it. could also have a relay that is going out. My fuel pump relay was like that. You could hear it click on and off and reprime if I would hit large enough bumps. hahah

NismoDriverS13 · 06-28-2014, 03:30 PM

Lol^

Ok, ran compression:

1st=175
2nd=180
3rd=180
4th=190

so it can't be head gasket...

Flako · 06-29-2014, 01:58 PM

Vacuum leak... While at idle... Shake and wiggle all the vacuum lines... U'd be surprised how shitty ur car can run on a vacuum leak.

06-27-2014, 08:14 PM	#1
NismoDriverS13 Zilvia Junkie Join Date: Oct 2009 Location: So-Cal Age: 35 Posts: 506 Trader Rating: (0) Feedback Score: 0 reviews	KA24DE running crappy :/ I got a 1992 Nissan 240sx hatch I just threw on coilovers not too long ago and was driving around the other day, made a right turn and all of the sudden the car started shaking and idling like complete crap. felt like running on 3 cylinders, took it back home and changed out spark plugs and spark plugs wires, the whole fuel rail and injectors, cleaned maf and my fuel pump is relatively new... problem went away, then yesterday I was driving around and same thing started happening but quickly went away after accelerating. anyone know wtf is going on? i'm gonna clean the aac iacv later and the maf but anyone had something similar and know how to fix this?

06-28-2014, 12:32 PM	#7
angel mkiv Zilvia Addict Join Date: Sep 2009 Location: Seattle, wa Posts: 725 Trader Rating: (4) Feedback Score: 4 reviews	Did you double check the harness though?maybe you can't hear it rubbing or whatever but all it takes is a bump at a decent speed being low could damage the harness __________________ Instagram username:angelmkiv

06-29-2014, 01:58 PM	#12
Flako Leaky Injector Join Date: Nov 2011 Location: VA Posts: 77 Trader Rating: (0) Feedback Score: 0 reviews	Vacuum leak... While at idle... Shake and wiggle all the vacuum lines... U'd be surprised how shitty ur car can run on a vacuum leak. __________________ WOLFPACK DRIFT CLUB, @Wolfpackflako

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

06-27-2014, 08:23 PM	#2
quickdiversion Zilvia Junkie Join Date: Aug 2012 Location: nj Age: 38 Posts: 341 Trader Rating: (4) Feedback Score: 4 reviews	How low is the car now? Did you rub through some of the harness under the passenger fender. It's common if you didn't tuck the harness when dropped it.

06-27-2014, 08:30 PM	#3
indomiekid1 Leaky Injector Join Date: May 2014 Location: Austin Age: 37 Posts: 96 Trader Rating: (0) Feedback Score: 0 reviews	ha, was about to say the same thing quickdiversion!

06-27-2014, 08:32 PM	#4
quickdiversion Zilvia Junkie Join Date: Aug 2012 Location: nj Age: 38 Posts: 341 Trader Rating: (4) Feedback Score: 4 reviews	On a 240, lowering the car and harness tuck under the fenders go hand in hand!

06-28-2014, 11:44 AM	#6
NismoDriverS13 Zilvia Junkie Join Date: Oct 2009 Location: So-Cal Age: 35 Posts: 506 Trader Rating: (0) Feedback Score: 0 reviews	I tucked harnesses and I'm not that low to rub through, ecu did not throw any codes...

06-28-2014, 12:56 PM	#8
quickdiversion Zilvia Junkie Join Date: Aug 2012 Location: nj Age: 38 Posts: 341 Trader Rating: (4) Feedback Score: 4 reviews	Very true. You don't have to be super low to hit a bump and run. How high did you tuck the harness? Side or above the fender rail. Also could have be damaged before you got it and now that you moved the harness it moved the damaged wires and the are touching.

06-28-2014, 02:52 PM	#9
NismoDriverS13 Zilvia Junkie Join Date: Oct 2009 Location: So-Cal Age: 35 Posts: 506 Trader Rating: (0) Feedback Score: 0 reviews	I'll run through the harness again just to make sure...gonna check compression right now too.

06-28-2014, 03:14 PM	#10
quickdiversion Zilvia Junkie Join Date: Aug 2012 Location: nj Age: 38 Posts: 341 Trader Rating: (4) Feedback Score: 4 reviews	sounds good. It never hurts to check it. could also have a relay that is going out. My fuel pump relay was like that. You could hear it click on and off and reprime if I would hit large enough bumps. hahah

06-28-2014, 03:30 PM	#11
NismoDriverS13 Zilvia Junkie Join Date: Oct 2009 Location: So-Cal Age: 35 Posts: 506 Trader Rating: (0) Feedback Score: 0 reviews	Lol^ Ok, ran compression: 1st=175 2nd=180 3rd=180 4th=190 so it can't be head gasket...