Results 1 to 7 of 7

Thread: Help please! Leaky injector cause of rough idle?

  1. #1
    Ride
    vy fagon, ve ssv, vr BT1

    Join Date
    Dec 2011
    Location
    hood
    Posts
    11

    Question Help please! Leaky injector cause of rough idle?

    Been having a few issues with my wagon since I got it. Have changed / checked, coils MAF plugs leads
    TPS and idle control. I noticed that the injector under throttle body seemed to be leaking a tiny bit of
    Petrol, wondering if anyone can put me in the right direction??? It's dual fuel and only on gas around
    80kms if I back off completly it will go back to 1000rpm then slowly stall!?
    This does not happen when running petrol. But the rough idle is present on both
    Gas and petrol. Can anyone help please? Much appreciated!

    Cheers

  2. #2
    Ride
    95 VR V6 Turbo Ute

    Join Date
    Oct 2009
    Location
    Sydney, North Shore
    Posts
    122

    Default

    So basically when you're idling the revs drop right down and it stalls? Or it idles really rough like 100-200rpm and seems like it's going to stall?

    This has happened to me ages ago, was the TPS, and was because the throttle cable was a bit too tight. If you haven't got slack in your throttle cable give it some and reset ecu and see if that helps? It sounds to me like it would be TPS, however you said you checked so dunno. I doubt that it would be because of an injector, although I could be wrong, just doesn't make sense to me.

  3. #3
    Ride
    vy fagon, ve ssv, vr BT1

    Join Date
    Dec 2011
    Location
    hood
    Posts
    11

    Default

    Quote Originally Posted by Commo_Carl View Post
    So basically when you're idling the revs drop right down and it stalls? Or it idles really rough like 100-200rpm and seems like it's going to stall?

    This has happened to me ages ago, was the TPS, and was because the throttle cable was a bit too tight. If you haven't got slack in your throttle cable give it some and reset ecu and see if that helps? It sounds to me like it would be TPS, however you said you checked so dunno. I doubt that it would be because of an injector, although I could be wrong, just doesn't make sense to me.
    It idles around 500 600 rpm where it should really it just idles roughly but as soon as is driving it's 100% just that idle issue. Although the gas at 80kms is the only time it will stall. It's got me screwed I'm
    Out of ideas

  4. #4
    Ride
    VY 03

    Join Date
    Aug 2005
    Location
    Townsville
    Posts
    241

    Default

    If you give your car a quick rev to say 3000 will it return to normal idle or drop to say 200 or stall?

  5. #5
    Ride
    Vt Wagon

    Join Date
    Aug 2011
    Location
    Melbourne
    Posts
    71

    Default

    If it's got a balance tube on the convertor check if there is a 1/8 hole in the elbow at the convertor end to relieve back pressure

  6. #6
    NickVR's Avatar
    NickVR is offline Donating Member
    Ride
    VR Executive A4 V8

    Join Date
    Jun 2006
    Location
    Adelaide, SA
    Posts
    1,299

    Default

    I had idle issues (VR V8) and it was the injectors causing it. It also fouled plugs really quickly too. So if it isn't the IAC valve or TPS then that may be the issue.

  7. #7
    Ride
    vy fagon, ve ssv, vr BT1

    Join Date
    Dec 2011
    Location
    hood
    Posts
    11

    Default

    Quote Originally Posted by hN! View Post
    If you give your car a quick rev to say 3000 will it return to normal idle or drop to say 200 or stall?
    If reved to 3000 it would drop down to around 200 and then bounce back to normal (around 600rpm)
    But would almost stall


Similar Threads

  1. V6 VT rough idle - still
    By DeanoNSW in forum VT - VX Holden Commodore (1997 - 2002)
    Replies: 12
    Last Post: 13-10-2011, 08:34 AM
  2. missing+hunting idle. injector stuck open?
    By dirt drifter in forum VR - VS Holden Commodore (1993 - 1997)
    Replies: 4
    Last Post: 10-05-2011, 01:58 PM
  3. Rough idle, Rough take off and rough stop.
    By Niggadore in forum VR - VS Holden Commodore (1993 - 1997)
    Replies: 6
    Last Post: 30-06-2010, 05:49 PM
  4. Rough Idle
    By chum in forum VN - VP Holden Commodore (1988 - 1993)
    Replies: 3
    Last Post: 06-06-2005, 09:36 PM
  5. vr rough idle
    By hakhawk in forum VR - VS Holden Commodore (1993 - 1997)
    Replies: 0
    Last Post: 10-02-2005, 12:45 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72