User Tag List

Thanks Thanks:  0
Likes Likes:  0
Results 1 to 4 of 4

Thread: Odd Fuel Consumption 2.2 Direct Signum

  1. #1
    Regular Member
    Join Date
    Jul 2010
    Location
    Scotland
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Exclamation Odd Fuel Consumption 2.2 Direct Signum

    I have just driven my Signum 2.2 direct Elite Auto from Glasgow to Sussex, for the 1st 245 miles I was only getting an average of 27.5mpg at 70mph using Cruise Control...I was horrifed.

    I pulled over to a service station to put in top up with 8.9 gallons, continued the journey and was suddenly getting an average of 38.1mpg at 70mph on cruise. This average was the same all the way to my destination. Total mileage on the trip was 470 miles.

    Is this some kind of fuel pressure regulator problem?

  2. #2
    Regular Member
    Join Date
    Oct 2008
    Location
    Bradford
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats

    Vehicle : Vectra

    Trim : Elite Auto

    Engine : 2.2 Direct Petrol

    Year : 2006

    Default

    This happened to me not so long ago.

    Almost always, i fill up at Sainsbury's. I usually get 40ish mpg on the motorway.

    This one time, i filled up at a real grotty Esso with the old style pumps. I drove from Bradford to London - was horrified to see my average mpg to be 31mpg. Could almost watch the fuel guage move down as each mile passed by.

    On my way back, filled up at a Shell. Got 41 mpg on the return journey. Happy again.

    I've never used that ESSO petrol station again.

    By the way, mines a 2.2 Direct Auto too..
    Last edited by ShamusUK; 29th August 2010 at 20:57. Reason: Added more details.

  3. #3
    Regular Member Das's Avatar
    Join Date
    Jun 2010
    Location
    Turdsville
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    35 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats

    Vehicle : Lada

    Trim : Riva

    Engine : 6.0 V12

    Year : 1954

    Mileage : 567890987

    Default

    The on board computer is notoriously unreliable, Did you do a manual check? ie; miles divided by litres.

  4. #4
    Regular Member
    Join Date
    Jul 2010
    Location
    Scotland
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default Computer was correct

    When I filled up at the services the gallons used according to the computer were accurate.

    I found this thread which alerted me to a possible issue;
    http://www.vectra-c.com/forum/showth...on+high&page=2

    I appreciate any help/experience with this issue. It is almost as if you have to stop the car then restart it effectively rebooting the onboard computer. I am not sure I feel confident about this.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. 2.2 direct fuel consumption
    By danhariga in forum Engine & Drivetrain
    Replies: 44
    Last Post: 23rd April 2013, 11:13
  2. 2.2 direct idle fuel consumption
    By banjokazooie in forum Engine & Drivetrain
    Replies: 5
    Last Post: 27th June 2011, 14:07
  3. Signum 3.0 DTI Fuel consumption
    By stoxman in forum Vectra C / Signum Car Chat
    Replies: 10
    Last Post: 23rd January 2010, 11:43
  4. Fuel consumption 2.2i Direct
    By steve1975l in forum Vectra C / Signum Car Chat
    Replies: 24
    Last Post: 8th May 2008, 05:05
  5. Fuel Consumption seems high, Signum 2.0 Deisel
    By Mad_Matt in forum Engine & Drivetrain
    Replies: 8
    Last Post: 22nd February 2008, 19:14

Visitors found this page by searching for:

Nobody landed on this page from a search engine, yet!

Bookmarks

Posting Permissions

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