Jump to content
SAU Community

Jumpy Taco Needle

shane_game33

By shane_game33,
in General Maintenance

 Share

Recommended Posts

shane_game33 Rookie

shane_game33

Posted
Posted

Hey just bought a skyline r33 turbo and its taco needle is all over the place, fluttering from betweek 3000-9000 rpm all the time. rarely is acurate and spends most of its time past red line.

wat could be causing this guys?

all help and input appreciated.

Link to comment
https://www.sau.com.au/forums/topic/285749-jumpy-taco-needle/
Share on other sites
PsYLoR Collaborator

PsYLoR

Posted
Posted

Either the tacho needle has been bumped and could have a loose connection, or it'll be a wiring issue somewhere.

I have the same prob, thought I fixed it but the problem soon returned.

Ive got a PFC so i can use the hand controller to show revs (its signal is fine).

So for me i know that the ecu is getting a good rpm signal but the problem is happening either at the tacho or in the wire that runs from the ecu to the tacho. Still yet to fix it. ;(

If i give the dash a hit it usually fixes itself (for a bit). lol

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

    • ELVIS
      ZF 6HP26 to RB30 block

      By ELVIS · Posted

      Hello Liam - HA - somewhere in flies - possibly I have an update, but I have been so busy, projects have taken a back seat to getting business back on track.  I will let you know the outcome, but I think I am going to go for the 8HP,  CHEERS.  ELVIS
    • ELVIS
      ZF 6HP26 to RB30 block

      By ELVIS · Posted

      Thanks Joshuaho96, yes - as someone else also suggested, the 8HP seems the 'smart choice' - HA - and ZERO to do with cost, but I am sure 8 speeds will be better than 6 speeds - HA - maybe.  I will purchase a new 8HP,  Thanks.  ELVIS.
    • ELVIS
      ZF 6HP26 to RB30 block

      By ELVIS · Posted

      Nobody said anything about getting a "...cheap Falcon box..."- it was JUST a question about a specific transmission.  And YOU may have a problem with not enough $ - HA - I do NOT - so please keep your comments like you are some financial guru to yourself.  BUT - much appreciated re the cost of a new 8HP and I twill probably be the way I go.  Thanks.  ELVIS.
    • joshuaho96
      ZF 6HP26 to RB30 block

      By joshuaho96 · Posted

      Most people I know in the BMW world are swapping 6HPs for 8HPs. The 6HP has a big issue with one of the clutch drum bushings wearing out shockingly early which leads to them going into limp mode going into 5th/6th gear as the oil pressure loss from the worn bushing causes clutch slip. Even with the adaptations in shifting the TCU can't bump line pressure enough to keep the clutches from slipping and burning. I've personally looked at a 335d with 6HP28 with one owner and ~90k miles on it and the transmission adaptations were way out of spec and even though it nominally drove ok I'm confident it would have needed a full rebuild sooner than later. Other than that they're fine, but the 8HP doesn't really have weird issues like this to my knowledge and they're in everything these days so pulling them out of crashed cars isn't too hard.
    • joshuaho96
      R34 GT-T cycling ABS pump

      By joshuaho96 · Posted

      There is an ABS pump and a few solenoids. You could trigger the front/rear solenoids with a pressure bleeder attached with a Consult 2. 
×
×
  • Create New...