Jump to content
SAU Community

Vacuum Question, Rb25det, What Is This?

Nick378

By Nick378,
in General Maintenance

 Share

Recommended Posts

Nick378 Enthusiast

Nick378

Posted
Posted

I guess this is the oem boost solenoid but i care about the little nipple without any hose. What is it and do i have to put a cap on it?

n694150400_4227990_227.jpg

I guess it's been like that for a long time but i've had a boost trouble for 5 weeks now and i' trying to figure it out! The boost is inconsistant, it goes up to 12 psi, then come back to 8 psi within 1 second when i am full open throtle.

Sometimes, it won't do it.

I tried with the boost controller (greddy profec b) in of mode and it seems to run ok.

Anyway, do i have to put a cap on this little free nipple?

Ps. Don't mind about the pink hose, it won't stay there lol...

(B1) MR_fanny Grand Master

(B1) MR_fanny

Posted
Posted

you dont have to plug, you could even remove it altogether if you want. your greddy is controling things now. is the top hose on the stocker just a dummy hose or does it actually lead to somewhere? Id be optimising your hoses to, as you said that pink one is deff too long and all over the place.

do you know how to adjust your ebc? you might have to adjust the settings. are you after 12 psi or just 8?

Nick378 Enthusiast

Nick378

Posted
  • Author
Posted
you dont have to plug, you could even remove it altogether if you want. your greddy is controling things now. is the top hose on the stocker just a dummy hose or does it actually lead to somewhere? Id be optimising your hoses to, as you said that pink one is deff too long and all over the place.

do you know how to adjust your ebc? you might have to adjust the settings. are you after 12 psi or just 8?

It actually lead to a 1" black metal hose and i have no idea what is it! I know how to adjust it, well i think i know... I was after 12 psi but anyway, the car will be stored in 2 months and it's cold as shit outside. I think shut down the boost controller and will adjust all my things next season.

Still, i would like to find the issue lol.

Munkyb0y Grand Master

Munkyb0y

Posted
Posted (edited)

the top hose on the stock solenoid leads back to the intake. block that hose off. you can leave the solenoid there with no hoses attached. thats fine

also, shorten that pink one. the shorter the pressure lines, the better :(

Edited by Munkyb0y
Nick378 Enthusiast

Nick378

Posted
  • Author
Posted
the top hose on the stock solenoid leads back to the intake. block that hose off. you can leave the solenoid there with no hoses attached. thats fine

also, shorten that pink one. the shorter the pressure lines, the better :(

Yeha i know lol.. i'm waiting to find someone who can weld me a nipple on my intercooler piping. Until that, the gay hose will stay there =(

Thx for advice on top hose.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      $5 Clock upgrade for R32 GTR

      By GTSBoy · Posted

      The attached document is fine. I just downloaded & opened it.
    • ToothDR32
      $5 Clock upgrade for R32 GTR

      By ToothDR32 · Posted

      Hello, sorry for being late to join the discussion, but my clock just died on me.   Ive tried to look at Michaels digital clock repair.docx and it doesnt work maybe the file has expired.   Please let me know if you can re upload it or take some youtube videos to show us how to get the clock installed? thanks
    • MissMintyR33
      R33 persistent issues. P/steering and lag/misfire

      By MissMintyR33 · Posted

      I thought that might be the case, thats what I'll start saving for. Thanks for the info 
    • jtha7
      Strange issue RB25DET wont start

      By jtha7 · Posted

      Ps i found the below forum and it seems to be the same scenario Im dealing with. Going to check my ECU coolant temp wire tomorrow    From NICOclub forum: s1 RB25det flooding at start up Thu Apr 11, 2013 7:23 am I am completely lost on this. Car ran perfectly fine when I parked it at the end of the year. I took the engine out and painted the engine bay, and put a fuel cell with an inline walbro 255 instead of the in tank unit I had last year. After reinstalling everything, the engine floods when the fuel pump primes. if i pull the fuel pump fuse it'll start, and as soon as I put the fuse back in it starts running ridiculously rich. I checked the tps voltage, and its fine. Cleaned the maf as it had some dust from sitting on a shelf all winter, fuel pressure is correct while running, but wont fire until there is less than 5psi in the lines. The fuel lines are run correctly. I have found a few threads with the same problem but no actual explanation of what fixed it, the threads just ended. Any help would be appreciated. Rb25det s1 walbro255 fuel pump nismo fpr holset hx35 turbo fmic 3" exhaust freddy intake manifold q45tb q45 maf   Re: s1 RB25det flooding at start up Fri Apr 12, 2013 5:07 am No, I didn't. I found the problem though. There was a break in one of the ecu coolant temp sensor wires. Once it was repaired it fired right up with no problems. I would have never thought a non working coolant temp sensor would have caused such an issue.
    • jtha7
      Strange issue RB25DET wont start

      By jtha7 · Posted

      Hi sorry late reply I didnt get a chance to take any pics (my mechanics on the other side of the city) but the plugs were fouled from being too rich. I noticed the MAF wasn't genuine, so I replaced it with a genuine green label unit. I also swapped in a different ignitor, but the issue remains. I've narrowed it down a bit now: - If I unplug and reconnect the fuel lines and install fresh spark plugs, the car starts right up and runs perfectly. Took it around the block with no issues - As soon as I shut it off and try to restart, it won't start again - Fuel pressure while cranking is steady around 40 psi, injectors have good spray, return line is clear, and the FPR vacuum is working. It just seems like it's getting flooded after the first start I unplugged coolant sensors to see if its related to ECU flooding but that didnt make a difference. Im thinking its related to this because this issue only started happening after fixing coolant leaks and replacing the bottom part of the stock manifolds coolant pipe. My mechanic took off the inlet to get to get to do these repairs. My mechanics actually just an old mate who's retired now so ill be taking it to a different mechanic who i know has exp with RBs to see if they find anything. If you have any ideas please send em lll give it a try. Ive tried other things like swapping the injectors, fuel rail, different fuel pressure regs, different ignitor, spark plugs, comp test and MAF but the same issue persists.
×
×
  • Create New...