Jump to content
SAU Community

Rb25det Hits 2000rpm And Bounces Back

Rednisr31
 Share

Recommended Posts

Rednisr31 Community Regular

Rednisr31

Posted
Posted

so i got a 25 in a 31

hit 2k and the car just bounces back, revs just die back down

car idles high and over fuels

doesn't matter weather you load the car up or free rev it no difference

i tested my spare AFM as per what the r33 engine manual says, i have tried 2 AFM's and had the loom checked and its all good

what could be my problem guys?

sometimes the problem comes and goes, well it used to and now it wont, sometimes you could start the car and drive it and rev its f**king ring out, then you could turn it off, turn it back on 1 min later and it would idle high and not rev

i really need help this car has been on the road like 2 weeks in 14 weeks and its shitting me

either talk here or add me to msn please

[email protected]

thanks people

Rednisr31 Community Regular

Rednisr31

Posted
  • Author
Posted (edited)

i ran my piping from turbo straight into intake to make sure none of my piping was f**ked

no difference

but when i have popped pipes off ran different to this

lets say your driving down hill, hits like 2.5k and just makes a bovish woosh noise, then nothing, then you change gears and same shit

Edited by Rednisr31
cheez Mentor

cheez

Posted
Posted

did u check to ensure the afm has got dry cracked solder point? if you checked, do it again, only this time use a soldering iron to heat up the solder points. this will ensure there are no under lying cracks.

cheez Mentor

cheez

Posted
Posted

take it to a tuner man and get them to diagnose, might be worth your while to get a safc2/neo and tune with that, will eliminate some issues and youll be happy. all up prob will be fixed with around 500 odd.

Rednisr31 Community Regular

Rednisr31

Posted
  • Author
Posted

yeah... i think im going to have to

bit of a bummer, i may leave it cause im taking the engine out of it in a while and putting it in a 32, getting an aftermarket ecu at the same time, but i dont have a car to drive atm

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

    • GoHashiriya
      From Japan and back to Europe, my sh*tbox R34 GTT

      By GoHashiriya · Posted

      Cheers. Skyline is back on the menu, can’t get rid of it. It’s like a child you don’t want, or herpes 
    • Dose Pipe Sutututu
      From Japan and back to Europe, my sh*tbox R34 GTT

      By Dose Pipe Sutututu · Posted

      Welcome back brother 
    • GoHashiriya
      From Japan and back to Europe, my sh*tbox R34 GTT

      By GoHashiriya · Posted

      I got back to Japan in January and was keen to get back on track as quickly as possible. Europe is god-awful for track accessibility (by comparison), so I picked up a first-gen GT86 in December just to have something I could jump into right away. The Skyline came over in a container this time and landed in early January. It was a bit battered after Europe, though—I refused to do anything beyond essential upkeep while it was over there. The clutch master cylinder gave out, and so did the power steering. I didn’t even bother changing the oil; it was the same stuff that went in just before I left Japan the first time. Naughty. Power steering parts would’ve cost double with shipping and taxes, so knowing I’d be heading back to Japan, I just postponed it and powered through the arm workout. It took a solid three months to get the car back on the road. Registration was a nightmare this time around. There were a bunch of BS fees to navigate, and sourcing parts was a headache. I needed stock seats for shaken, mistakenly blew 34k JPY on some ENR34 seats—which, of course, didn’t fit—then ended up having the car’s technical sheet amended to register it as a two-seater with the Brides. Then there’s the GT86. Amazing car. Does everything I want it to do. Parts are cheap, easy to find, and I don’t care what anyone says—it’s super rewarding to drive. I’ve done a few basic mods: diff ratio, coilovers, discs, pads, seat, etc. It already had a new exhaust manifold and the 180kph limiter removed, so I assume it’s running some kind of map. I’ve just been thrashing it at the track non-stop—mostly Fuji Speedway now, since I need something with higher speed after all that autobahn time. The wheels on the R34 always pissed me off—too big, and it was a nightmare getting tires to fit properly under the arches. So I threw in the towel and bought something that fits better. Looks way cleaner too (at least to me)—less hotboy, less attention-seeking. Still an R34, though. Now for future plans. There are a few things still outstanding with the car. First up, the rear subframe needs an overhaul—that’s priority one. Next, I need to figure out an engine rebuild plan. No timeline yet, but I want to keep it economical—not cutting corners, just not throwing tens of thousands at a mechanic I can barely communicate with. And finally, paint. Plus a bit of tidying up here and there.  
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Nope, needed to clearance under the bar a little with a heat gun, a 1/2" extension as the "clearancer", and big hammer, I was aware of this from the onset, they fit a 2.0 with this intake no problems, but, the 2.5 is around 15mm taller than a 2.0, so "clearancing" was required  It "just" touched when test fitting, now, I have about 10mm of clearance  You cannot see where it was done, and so far, there's no contact when giving it the beans Happy days
    • GoHashiriya
      From Japan and back to Europe, my sh*tbox R34 GTT

      By GoHashiriya · Posted

      It's been a while since I've updated this thread. The last year (and some) has been very hectic. In the second-half of 2024 I took the R34 on a trip through Germany, Italy, France and Switzerland - it was f*cking great. I got a little annoyed with the attention the car was getting around Europe and really didn't drive it that much. I could barely work on the car since I was living in an inner-city apartment (with underground parking). During the trip, the car lost power steering in France - split hose - and I ended up driving around 4,000kms with no power steering.  There were a few Nurburgring trips here and there, but in total the R34 amassed just shy of 7,000kms on European roads. Long story short, I broke up with the reason I was transferred to Europe for and requested to be moved back to Japan. The E90, loved it. It was a sunk cost of around EUR 10,000 and I sold it to a friend for EUR 1,500 just to get rid of it quickly. Trust me, moving countries f*cking sucks and I could not be bothered to be as methodical as I was the first time around.
×
×
  • Create New...