Bogging Issues *Help - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

southjrz240 · 07-06-2008, 01:44 PM

I just picked up this 240 yesterday that has a fresh stock sr with the 240sxmotoring swap package. Off the bat i bought the car with a huge mani leak and i'm guessing this guy never wrenched on anything b/c all i had to do was tighten the mani down and it's all good now. Anyways i reset the ecu by pullin the positive off and then i took it for a spin. It has somewhat of a bogging issue, like it's holding back and i have the slightest clue what it can be. It's only getting about 6 psi of boost and the vac is going no less then -6. At part throttle it's fine but if i go w.o.t it is most def is bogging out. This is a totally stock motor with what seems to be a very clean swap so it doesn't look like anything is hacked. It's not throwing a code or anything either. I don't know if this is a common issue with sr's and or if it can be diagnosed via internet. did a runover of everything (ic pipes, sensors ect ect) and all seems to look okay but i might be overlooking something. I am a KA-T guy so i honestly don't know ANYTHING about these motors. I was just looking for a reliable 240 with some simple bolt on to do some drift fun and throw this pile of goodies i have sitting around on. I'm located in south jerz and can meet with anyone who can possibly give me some help. I will pay you with beer:thumbsup

boostednismo · 07-09-2008, 11:27 AM

Try adjusting the timming. 12mm and a ext is all you need to adjust the cam angle sensor.

FRoSt415 · 07-15-2008, 11:32 AM

they should have replaced the fuel pump with a higher flowing one see if it was replaced if not go buy one.

jskateborders · 07-15-2008, 01:23 PM

check for moreboost leaks

NissanAJF · 07-16-2008, 02:47 PM

Also, I had a similar problem before. I had let my 240 sit around for too long, and almost all my fuel lines had corroded, so I replaced all of those, and car ran perfectly again. You might try that?

aNskY · 07-16-2008, 05:24 PM

tighten all your ic coupling clamps. the guy didnt tq his ex mani enough, who needs solid ic connections when you cant even make boost?

07-06-2008, 01:44 PM	#1
southjrz240 Leaky Injector Join Date: Jun 2006 Location: LBI NJ Posts: 105 Trader Rating: (1) Feedback Score: 1 reviews	*Bogging Issues Help** I just picked up this 240 yesterday that has a fresh stock sr with the 240sxmotoring swap package. Off the bat i bought the car with a huge mani leak and i'm guessing this guy never wrenched on anything b/c all i had to do was tighten the mani down and it's all good now. Anyways i reset the ecu by pullin the positive off and then i took it for a spin. It has somewhat of a bogging issue, like it's holding back and i have the slightest clue what it can be. It's only getting about 6 psi of boost and the vac is going no less then -6. At part throttle it's fine but if i go w.o.t it is most def is bogging out. This is a totally stock motor with what seems to be a very clean swap so it doesn't look like anything is hacked. It's not throwing a code or anything either. I don't know if this is a common issue with sr's and or if it can be diagnosed via internet. did a runover of everything (ic pipes, sensors ect ect) and all seems to look okay but i might be overlooking something. I am a KA-T guy so i honestly don't know ANYTHING about these motors. I was just looking for a reliable 240 with some simple bolt on to do some drift fun and throw this pile of goodies i have sitting around on. I'm located in south jerz and can meet with anyone who can possibly give me some help. I will pay you with beer:thumbsup

07-15-2008, 01:23 PM	#4
jskateborders Zilvia FREAK! Join Date: Apr 2007 Location: Tucson AZ Age: 32 Posts: 1,258 Trader Rating: (5) Feedback Score: 5 reviews	check for moreboost leaks __________________ "I am Norwegian, and are not familiar with your urban words :P"

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07-09-2008, 11:27 AM	#2
boostednismo Join Date: Jan 2008 Location: GA Age: 35 Posts: 13 Trader Rating: (0) Feedback Score: 0 reviews	Try adjusting the timming. 12mm and a ext is all you need to adjust the cam angle sensor.

07-15-2008, 11:32 AM	#3
FRoSt415 Zilvia Junkie Join Date: Dec 2006 Location: san francisco Age: 34 Posts: 305 Trader Rating: (0) Feedback Score: 0 reviews	they should have replaced the fuel pump with a higher flowing one see if it was replaced if not go buy one.

07-16-2008, 02:47 PM	#5
NissanAJF Join Date: Jul 2008 Location: Villa Park, Cali Age: 34 Posts: 25 Trader Rating: (0) Feedback Score: 0 reviews	Also, I had a similar problem before. I had let my 240 sit around for too long, and almost all my fuel lines had corroded, so I replaced all of those, and car ran perfectly again. You might try that?

07-16-2008, 05:24 PM	#6
aNskY Nissanaholic! Join Date: Apr 2005 Location: NY Age: 37 Posts: 1,604 Trader Rating: (10) Feedback Score: 10 reviews	tighten all your ic coupling clamps. the guy didnt tq his ex mani enough, who needs solid ic connections when you cant even make boost?