My s13silvia is bogging down at 4000 rpm in all gears???? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

SlammedPurpleS13 · 05-25-2012, 11:58 AM

I recently bought a 1990 s13 silvia and it is bogging down at 4000 rpm in all gears. Ive searched google and found that it could possibly be the MAF or a clogged fuel filter or even a clogged cat. I need some help targeting the problem so I can get out and kill some porsches. please help me if you have any answers...

Edwin562 · 05-25-2012, 12:01 PM

Quote:

Originally Posted by SlammedPurpleS13

I recently bought a 1990 s13 silvia and it is bogging down at 4000 rpm in all gears. Ive searched google and found that it could possibly be the MAF or a clogged fuel filter or even a clogged cat. I need some help targeting the problem so I can get out and kill some porches. please help me if you have any answers...

This is the only reason why i will not help.

ultimateirving · 05-25-2012, 01:14 PM

does it start to bog like as in it its about to die?

or does it break and kinda buck around like its trying to go but cant?

and try not to kill porches... im sure the homeowners would disapprove.

SlammedPurpleS13 · 05-26-2012, 11:35 AM

Its trying to go but cant, its almost like its not getting enough fuel. it bucks and backfires..

cotbu · 05-26-2012, 12:10 PM

4k bog down is usually fuel, correct there. We need to know what afr it happens and is timing correct, base timing with a light. Not cas in the middle! That can be 20-30deg.
It may also be a boostleak, so get to checking, not with brake cleaner etc. pressurize intercooler pipes! Also TPS voltage could be a suspect as well. So you can see that there are many things to check and still be something else, like a leaky injector.

I know a porch you can kill! I need to rebuild it anyway, thinking... solid paneling for the floor!

SlammedPurpleS13 · 05-28-2012, 11:06 AM

Thanks for your help, I will check these possibilities.

pacotaco345 · 05-28-2012, 05:54 PM

Is it a ka? I had this problem with mine, the lower timing chain was a tooth off so it wouldn't time correctly. My resulting timing was either so low that it wouldn't run or so high that it would set off the knock sensor at 4k and it wouldn't rev any higher.

SlammedPurpleS13 · 05-30-2012, 05:20 PM

It's a red top sr. Thanks I'll check the timing.

Nesser · 06-02-2012, 05:08 AM

Had a similar problem with my 240. My problem was a dirty MAF. You can go to Autozone and buy some MAF cleaner to see if this is your problem also. Second thing might be the EGR

illest420 · 08-17-2012, 12:04 PM

Quote:

Originally Posted by SlammedPurpleS13

I recently bought a 1990 s13 silvia and it is bogging down at 4000 rpm in all gears. Ive searched google and found that it could possibly be the MAF or a clogged fuel filter or even a clogged cat. I need some help targeting the problem so I can get out and kill some porsches. please help me if you have any answers...

sounds like ur leaking boost

05-25-2012, 11:58 AM	#1
SlammedPurpleS13 Join Date: May 2012 Location: Regina Posts: 7 Trader Rating: (0) Feedback Score: 0 reviews	My s13silvia is bogging down at 4000 rpm in all gears???? I recently bought a 1990 s13 silvia and it is bogging down at 4000 rpm in all gears. Ive searched google and found that it could possibly be the MAF or a clogged fuel filter or even a clogged cat. I need some help targeting the problem so I can get out and kill some porsches. please help me if you have any answers... Last edited by SlammedPurpleS13; 05-28-2012 at 11:03 AM..

05-25-2012, 01:14 PM	#3
ultimateirving Zilvia FREAK! Join Date: Nov 2010 Location: arizona Age: 36 Posts: 1,521 Trader Rating: (1) Feedback Score: 1 reviews	does it start to bog like as in it its about to die? or does it break and kinda buck around like its trying to go but cant? and try not to kill porches... im sure the homeowners would disapprove. __________________ Z32 with lq4 swap Desert Street Scene \|\| Dssevents.com

05-26-2012, 12:10 PM	#5
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 49 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	4k bog down is usually fuel, correct there. We need to know what afr it happens and is timing correct, base timing with a light. Not cas in the middle! That can be 20-30deg. It may also be a boostleak, so get to checking, not with brake cleaner etc. pressurize intercooler pipes! Also TPS voltage could be a suspect as well. So you can see that there are many things to check and still be something else, like a leaky injector. I know a porch you can kill! I need to rebuild it anyway, thinking... solid paneling for the floor! __________________ LoverTechnologies "Half Broken Things!"

05-28-2012, 05:54 PM	#7
pacotaco345 Zilvia FREAK! Join Date: Jan 2010 Location: SoCal/Ft Worth TX Age: 30 Posts: 1,563 Trader Rating: (5) Feedback Score: 5 reviews	Is it a ka? I had this problem with mine, the lower timing chain was a tooth off so it wouldn't time correctly. My resulting timing was either so low that it wouldn't run or so high that it would set off the knock sensor at 4k and it wouldn't rev any higher. __________________

05-26-2012, 11:35 AM	#4
SlammedPurpleS13 Join Date: May 2012 Location: Regina Posts: 7 Trader Rating: (0) Feedback Score: 0 reviews	Its trying to go but cant, its almost like its not getting enough fuel. it bucks and backfires..

05-28-2012, 11:06 AM	#6
SlammedPurpleS13 Join Date: May 2012 Location: Regina Posts: 7 Trader Rating: (0) Feedback Score: 0 reviews	Thanks for your help, I will check these possibilities.

05-30-2012, 05:20 PM	#8
SlammedPurpleS13 Join Date: May 2012 Location: Regina Posts: 7 Trader Rating: (0) Feedback Score: 0 reviews	It's a red top sr. Thanks I'll check the timing.

06-02-2012, 05:08 AM	#9
Nesser Leaky Injector Join Date: Oct 2009 Location: Redondo Beach Posts: 50 Trader Rating: (0) Feedback Score: 0 reviews	Had a similar problem with my 240. My problem was a dirty MAF. You can go to Autozone and buy some MAF cleaner to see if this is your problem also. Second thing might be the EGR