Jump to content
SAU Community

RB30 Struggles from idle

aimre

By aimre,
in Engines & Forced Induction

 Share

Recommended Posts

aimre Newbie

aimre

Posted
Posted

Car is struggling to rev from idle when you accelerate normally to spirited, But it will get past 1000ish rpm if you feather it, and then is fine so long as the revs don’t drop again. Idles fine. Plugs come out wet as after a few min. 

Things changed are:
CAS, ARM and fuel reg from a engine that was confirmed working 2 years ago

Injectors have been reconditioned 

ECU has no codes

Where to from here?

Video of the issue can be seen here

 

Link to comment
https://www.sau.com.au/forums/topic/485909-rb30-struggles-from-idle/
Share on other sites
aimre Newbie

aimre

Posted
  • Author
Posted
  On 01/11/2024 at 6:25 AM, MBS206 said:

Sounds like AFM or TPS issue.

What are the voltages at the TPS like?

Have you done any diagnostics other than slapping parts at it?

Expand  

Checked for codes on the standard ecu. But not much else. What’s the procedure for TPS voltages? What else should I be trying to diagnose?

 

cheers

MBS206 Grand Master

MBS206

Posted
Posted
  On 06/11/2024 at 12:33 PM, aimre said:

Checked for codes on the standard ecu. But not much else. What’s the procedure for TPS voltages? What else should I be trying to diagnose?

 

cheers

Expand  

Start with a multimeter, and see if you're getting power at the TPS. There should be a manual for your car somewhere on these forums and it'll have the info for what closed TPS signal voltage is, and how it should sweep to full throttle.

Same as for other sensors / valves.

 

Have you checked things like your base timing etc? See if anything looks amiss there too?

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

    • wizlb
      Who has a Infiniti Q60, Q50 (V37)?

      By wizlb · Posted

      I’m not sure what happened I told them about sonic tunes free OTS tune and the next the I know .. I was booted..   To funny 
    • Kinkstaah
      Starting again

      By Kinkstaah · Posted

      Yea - I mean I've seen my fuel pump which is decades old and uh, while I'm not saying this with real knowledge... but I sure get the ick at using anything in the fuel system that produced the state of that pump. Many years ago I went through multiple pumps (and strainers) before I dropped the tank to clean it out with extreme violence. I'm talking the car would do maybe 50km before coming to a halt, which resulted in me cleaning out the filter with some brake cleaner and going on my way. None of my stuff ever looked like what came out of your fuel tank. I don't think I'd be happy with it unless every single component was replaced (or at least checked/cleaned/confirmed to be clean here).
    • GTSBoy
      What brakes on R34 GTT(Europe)

      By GTSBoy · Posted

      I'm not going to recommend an EBC pad. I don't like them. Just about anything else would suit me better. I've been using Intima pads for a while now.
    • Duncan
      R32 GT-R: 4WD Light Turns On After Bumps – Code 19 (ETS Motor) But No Issues Found

      By Duncan · Posted

      Agreed, and in particular the earth strap that should go from the subframe to the chassis but it often broken or left off. There is a section in the R32 workshop manual you can follow for troubleshooting if you don't see anything suspicious, and depending where you are (there is no location on your user profile) you should be able to get your hands on a second hand replacement unit still if needed
    • Kapr
      What brakes on R34 GTT(Europe)

      By Kapr · Posted

      Yeah they mention as a R34 for 2.5 Turbo...but then again thos "small" were also for R34 by that different site. But i look into it and that 310mm EBC is for R34 GTT. And by those you linked the specs are the same 🙂    EDIT: I found these on one site here: DBA 4000 series T3 DBA42304S They are 310mm...and it says are for R34GTT...are there good? EDIT2: ok they have pads too.  What "color" should i get for street use? I dont want/need some noisy ones...(and if they are not that dusty that is good too)
×
×
  • Create New...