Omega Owners Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Please check the Forum Guidelines at the top of the Newbie section

Pages: [1]   Go Down

Author Topic: Erratic rev counter  (Read 1236 times)

0 Members and 1 Guest are viewing this topic.

moggy

  • Omega Knight
  • *****
  • Offline Offline
  • Gender: Male
  • hartlepool
  • Posts: 1194
    • vauxhall omega 3.0 elite
    • View Profile
Erratic rev counter
« on: 19 January 2016, 12:04:17 »
Hi all,can anyone tell me if this is an air leak or damp.When in park the rev counter wanders from 400rpm to 500 rpm,but in drive when stationary its perfect at 500 rpm.Any ideas please Dean.
Logged

05omegav6

  • Guest
Re: Erratic rev counter
« Reply #1 on: 19 January 2016, 12:52:56 »
Sticky idle control valve most likely...

In drive, the engine is effectively under load, so the ecu fuels it accordingly which steadies it ;)
Logged

moggy

  • Omega Knight
  • *****
  • Offline Offline
  • Gender: Male
  • hartlepool
  • Posts: 1194
    • vauxhall omega 3.0 elite
    • View Profile
Re: Erratic rev counter
« Reply #2 on: 19 January 2016, 20:44:46 »
Quote from: Harris K Telemacher on 19 January 2016, 12:52:56
Sticky idle control valve most likely...

In drive, the engine is effectively under load, so the ecu fuels it accordingly which steadies it ;)
Hi HKT,where a bouts is it and can i do anything about it.Dean.
Logged

05omegav6

  • Guest
Re: Erratic rev counter
« Reply #3 on: 19 January 2016, 21:42:15 »
Quote from: moggy on 19 January 2016, 20:44:46
Quote from: Harris K Telemacher on 19 January 2016, 12:52:56
Sticky idle control valve most likely...

In drive, the engine is effectively under load, so the ecu fuels it accordingly which steadies it ;)
Hi HKT,where a bouts is it and can i do anything about it.Dean.
I think it's connected to the throttle body and plenum, never had a non dbw Omega, but there is a guide for cleaning it ;)
Logged

Andyv6

  • Junior Member
  • **
  • Offline Offline
  • Gender: Male
  • westmidlands
  • Posts: 69
    • Elite 3.0, Vectra b3.0l
    • View Profile
Re: Erratic rev counter
« Reply #4 on: 19 January 2016, 21:55:00 »
N/s of the upper plenum, silver L shaped cylindrical item with a rubber hose on it held to the plenum by a rubber bracket, un plug the connector remove the hose pull it out of the plenum turn it 90 defy and slide it out the bracket, clean with carb cleaner and a brush and flick it clock and anti-clockwise to make sure the valve is free and not sticking then give it a light spray with lubricating oil then refit and let us know how you got on.
Logged

moggy

  • Omega Knight
  • *****
  • Offline Offline
  • Gender: Male
  • hartlepool
  • Posts: 1194
    • vauxhall omega 3.0 elite
    • View Profile
Re: Erratic rev counter
« Reply #5 on: 21 January 2016, 10:23:05 »
Quote from: Andyv6 on 19 January 2016, 21:55:00
N/s of the upper plenum, silver L shaped cylindrical item with a rubber hose on it held to the plenum by a rubber bracket, un plug the connector remove the hose pull it out of the plenum turn it 90 defy and slide it out the bracket, clean with carb cleaner and a brush and flick it clock and anti-clockwise to make sure the valve is free and not sticking then give it a light spray with lubricating oil then refit and let us know how you got on.
Thanks mate i will try to do this as well over the weekend.Regards Dean.
Logged
Pages: [1]   Go Up
« previous next »
 

Page created in 0.01 seconds with 16 queries.