SR warmup problems - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

s13silvia123 · 06-26-2007, 01:28 PM

does anyone ever have problems with their SR when starting their car up.
mine bogs when it starts up cold then after it warms up to 68-75 degrees it runs ok. its pretty warm over here like 80-90 degrees outside and my sr bogs when its cold when starting up around 30-55 degrees.

started doing that when i took my FMIC out to install a push electric fan in the front of the radiator. FMIC was properly installed back on and tightened up so there are no boost leaks.

also running a z32 maf. <------ could it be the problem. never happen when i install the z32 maf. its caliberated with the Power FC to work properly.

Z U L8R · 06-26-2007, 01:59 PM

check the idle air control valve air regulator valve, it's the black square shaped doohicky. one side is black the other's aluminum, it has a vacuum hose on each end, one goes to the idle air control valve, the other goes on a bung in the intercooler piping before the throttle body. it's job is to allow more air to the iac during cold starts. gl
Dave

s13silvia123 · 06-26-2007, 02:04 PM

thanks i'll check on that when i have time. any more suggestions could be helpful.

SSC299 · 06-26-2007, 02:34 PM

iacv should do it. that happened to me when I first put in my sr. I also had a vacuum leak (tiny leak) that would close when everything was hot so the car would run fine after warming up but sucked at idle and between shifts when cold (mainly at night around 45-50 degrees).

s13silvia123 · 06-26-2007, 02:45 PM

so if its the IAVC right. i have to clean it and use new vacum lines rite.

06-26-2007, 01:28 PM	#1
s13silvia123 Post Whore! Join Date: May 2006 Location: where waldo is Age: 43 Posts: 3,267 Trader Rating: (16) Feedback Score: 16 reviews	SR warmup problems does anyone ever have problems with their SR when starting their car up. mine bogs when it starts up cold then after it warms up to 68-75 degrees it runs ok. its pretty warm over here like 80-90 degrees outside and my sr bogs when its cold when starting up around 30-55 degrees. started doing that when i took my FMIC out to install a push electric fan in the front of the radiator. FMIC was properly installed back on and tightened up so there are no boost leaks. also running a z32 maf. <------ could it be the problem. never happen when i install the z32 maf. its caliberated with the Power FC to work properly. __________________ 18g and 20g turbo users click on me http://zilvia.net/f/tech-talk/261219-18g-20g-turbo-users.html

06-26-2007, 01:59 PM	#2
Z U L8R Zilvia FREAK! Join Date: Jan 2007 Location: Georgia Age: 43 Posts: 1,194 Trader Rating: (0) Feedback Score: 0 reviews	check the idle air control valve air regulator valve, it's the black square shaped doohicky. one side is black the other's aluminum, it has a vacuum hose on each end, one goes to the idle air control valve, the other goes on a bung in the intercooler piping before the throttle body. it's job is to allow more air to the iac during cold starts. gl Dave __________________ RB25 280z GT30/76R 441hp/381tq 11.9@125

06-26-2007, 02:04 PM	#3
s13silvia123 Post Whore! Join Date: May 2006 Location: where waldo is Age: 43 Posts: 3,267 Trader Rating: (16) Feedback Score: 16 reviews	thanks i'll check on that when i have time. any more suggestions could be helpful. __________________ 18g and 20g turbo users click on me http://zilvia.net/f/tech-talk/261219-18g-20g-turbo-users.html

06-26-2007, 02:34 PM	#4
SSC299 Join Date: Sep 2006 Location: Virginia Age: 38 Posts: 37 Trader Rating: (0) Feedback Score: 0 reviews	iacv should do it. that happened to me when I first put in my sr. I also had a vacuum leak (tiny leak) that would close when everything was hot so the car would run fine after warming up but sucked at idle and between shifts when cold (mainly at night around 45-50 degrees). __________________ - always something

06-26-2007, 02:45 PM	#5
s13silvia123 Post Whore! Join Date: May 2006 Location: where waldo is Age: 43 Posts: 3,267 Trader Rating: (16) Feedback Score: 16 reviews	so if its the IAVC right. i have to clean it and use new vacum lines rite. __________________ 18g and 20g turbo users click on me http://zilvia.net/f/tech-talk/261219-18g-20g-turbo-users.html