sr20det sputtering - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

MXAXTXT · 04-01-2009, 09:52 AM

I recently got my sr20 running and it is having a sputtering problem at around 2,500 rpms. At around 2,500-2,700 it will sputter and then after it passes into higher rpm's it runs strong until redline. Also, it seems that higher the gear I am in, the higher rpm's it will do it at.

It is an s13 redtop with a t28 turbo, walbro 255 fp, fmic, blitz bov and thats about it. It has stock injectors, MAF, and no type of fuel controll. I was thinking it may have something to do with running rich because of no fuel controll or stock injectors. I am buying an safc II soon so I hope it will help.

Any help will be appreciated.
thanks

Sileighty_85 · 04-01-2009, 11:18 AM

how much boost are you running? It shouldnt be anymore than .8Bar

Check your engine grounds though.

MXAXTXT · 04-01-2009, 03:02 PM

Thats one of the problems, I dont know how much boost im running. I dont have a gauge and I am not sure what the previous owner had it set on. As of now, I think it is on stock boost. Could that cause the problem?

MXAXTXT · 04-02-2009, 02:11 PM

Anyone have any ideas?

240beast20 · 04-02-2009, 05:08 PM

re circ'd BOV? if it isnt then do it. might help alot

DJ_Sunrise · 04-03-2009, 05:41 PM

Recirq? WTF? Really? Some people shouldn't be allowed to speak.

So you bought the car with all of these mods? First thing you should do is get a boost gauge.. ASAP.. and the car shouldnt require any tuning in any way shape or form to run.

-Bart

s142jzkillav10 · 04-04-2009, 11:40 AM

Do you know what your A/FR's are ?? First thing first I would get a wideband. you could be going lean at that rpm....

04-01-2009, 09:52 AM	#1
MXAXTXT Zilvia Junkie Join Date: Aug 2007 Location: ATL Posts: 322 Trader Rating: (0) Feedback Score: 0 reviews	sr20det sputtering I recently got my sr20 running and it is having a sputtering problem at around 2,500 rpms. At around 2,500-2,700 it will sputter and then after it passes into higher rpm's it runs strong until redline. Also, it seems that higher the gear I am in, the higher rpm's it will do it at. It is an s13 redtop with a t28 turbo, walbro 255 fp, fmic, blitz bov and thats about it. It has stock injectors, MAF, and no type of fuel controll. I was thinking it may have something to do with running rich because of no fuel controll or stock injectors. I am buying an safc II soon so I hope it will help. Any help will be appreciated. thanks

04-01-2009, 11:18 AM	#2
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	how much boost are you running? It shouldnt be anymore than .8Bar Check your engine grounds though. __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

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04-01-2009, 03:02 PM	#3
MXAXTXT Zilvia Junkie Join Date: Aug 2007 Location: ATL Posts: 322 Trader Rating: (0) Feedback Score: 0 reviews	Thats one of the problems, I dont know how much boost im running. I dont have a gauge and I am not sure what the previous owner had it set on. As of now, I think it is on stock boost. Could that cause the problem?

04-02-2009, 02:11 PM	#4
MXAXTXT Zilvia Junkie Join Date: Aug 2007 Location: ATL Posts: 322 Trader Rating: (0) Feedback Score: 0 reviews	Anyone have any ideas?

04-02-2009, 05:08 PM	#5
240beast20 Join Date: Jan 2009 Location: wa Age: 33 Posts: 3 Trader Rating: (1) Feedback Score: 1 reviews	re circ'd BOV? if it isnt then do it. might help alot

04-03-2009, 05:41 PM	#6
DJ_Sunrise Zilvia FREAK! Join Date: Feb 2004 Location: NJ Age: 34 Posts: 1,134 Trader Rating: (1) Feedback Score: 1 reviews	Recirq? WTF? Really? Some people shouldn't be allowed to speak. So you bought the car with all of these mods? First thing you should do is get a boost gauge.. ASAP.. and the car shouldnt require any tuning in any way shape or form to run. -Bart

04-04-2009, 11:40 AM	#7
s142jzkillav10 Zilvia Junkie Join Date: Mar 2009 Location: Kill Devil Hills, NC aka OBX Posts: 309 Trader Rating: (5) Feedback Score: 5 reviews	Do you know what your A/FR's are ?? First thing first I would get a wideband. you could be going lean at that rpm....