Notices

my mpg real bad

Thread Tools
 
Search this Thread
 
Old 16 July 2012, 05:20 PM
  #1  
sonic93
Scooby Regular
Thread Starter
iTrader: (16)
 
sonic93's Avatar
 
Join Date: Oct 2009
Location: borehamwood
Posts: 3,939
Received 2 Likes on 1 Post
Default my mpg real bad

my scoob is a w.e car so normally stick 30 quid in i get around 110 km i just worked that out thats lik 14 odd mpg ahhhhh.I havent even given her any stick this this week.Is this normal for you lot?
type r running 380 bhp
Old 16 July 2012, 06:24 PM
  #2  
blackvenom
Scooby Regular
 
blackvenom's Avatar
 
Join Date: Sep 2011
Location: ipswich
Posts: 1,415
Likes: 0
Received 0 Likes on 0 Posts
Default

My classic is doing 25-30mpg, ususally the higher end.mainy A and B roads, Leaky injectors maybe?
Old 16 July 2012, 06:36 PM
  #3  
Paulo P
Scooby Regular
iTrader: (42)
 
Paulo P's Avatar
 
Join Date: Oct 2001
Location: Bucks
Posts: 23,797
Likes: 0
Received 3 Likes on 3 Posts
Default

Sounds like a broken lambda to me. What ecu do you run?
Old 16 July 2012, 06:38 PM
  #4  
sonic93
Scooby Regular
Thread Starter
iTrader: (16)
 
sonic93's Avatar
 
Join Date: Oct 2009
Location: borehamwood
Posts: 3,939
Received 2 Likes on 1 Post
Default

simtec

na not my injectors i wouldnt think i would smell it
Old 16 July 2012, 06:41 PM
  #5  
Bean1984
Scooby Regular
iTrader: (3)
 
Bean1984's Avatar
 
Join Date: Nov 2011
Location: essex
Posts: 1,913
Likes: 0
Received 23 Likes on 18 Posts
Default

Hey rob

Did you find a carbon fibre bonnet in the end mate? I managed to sell my old one. Have you serviced the scoob recentely mate
Old 16 July 2012, 06:44 PM
  #6  
sonic93
Scooby Regular
Thread Starter
iTrader: (16)
 
sonic93's Avatar
 
Join Date: Oct 2009
Location: borehamwood
Posts: 3,939
Received 2 Likes on 1 Post
Default

hey mate na spent money on other things. Yea not long ago at all.
How much a new lambda
Old 16 July 2012, 06:47 PM
  #7  
Paulo P
Scooby Regular
iTrader: (42)
 
Paulo P's Avatar
 
Join Date: Oct 2001
Location: Bucks
Posts: 23,797
Likes: 0
Received 3 Likes on 3 Posts
Default

Shame it's not a power fc because you can check the lambda voltage on the commander and you can also turn it off. That's what my money is on
Old 16 July 2012, 06:55 PM
  #8  
The Zohan
Scooby Regular
 
The Zohan's Avatar
 
Join Date: Jan 2000
Location: Disco, Disco!
Posts: 21,825
Likes: 0
Received 0 Likes on 0 Posts
Thumbs up

Originally Posted by sonic93
hey mate na spent money on other things. Yea not long ago at all.
How much a new lambda
http://www.lambdasensor.com/main/subaru.htm
Old 16 July 2012, 07:00 PM
  #9  
sonic93
Scooby Regular
Thread Starter
iTrader: (16)
 
sonic93's Avatar
 
Join Date: Oct 2009
Location: borehamwood
Posts: 3,939
Received 2 Likes on 1 Post
Default

which 1 my one 3 wire 100mm long one? its in my downpipe? do the cheaper ones work or need a bosch?
Old 16 July 2012, 07:07 PM
  #10  
sonic93
Scooby Regular
Thread Starter
iTrader: (16)
 
sonic93's Avatar
 
Join Date: Oct 2009
Location: borehamwood
Posts: 3,939
Received 2 Likes on 1 Post
Default

can i test my one ?
Old 16 July 2012, 07:12 PM
  #11  
Turbotits
Scooby Regular
iTrader: (2)
 
Turbotits's Avatar
 
Join Date: Jan 2004
Location: Hertfordshire
Posts: 4,312
Likes: 0
Received 0 Likes on 0 Posts
Default

Pretty normal to me mate. Just bumming around i get similar 14 or 15. Have had 25 on a long run and down as low as 6 on track.
Old 16 July 2012, 07:32 PM
  #12  
sonic93
Scooby Regular
Thread Starter
iTrader: (16)
 
sonic93's Avatar
 
Join Date: Oct 2009
Location: borehamwood
Posts: 3,939
Received 2 Likes on 1 Post
Default

so how i drive about right then lol.
Old 16 July 2012, 07:46 PM
  #13  
icbm
Scooby Regular
 
icbm's Avatar
 
Join Date: Jul 2007
Location: North of South, but South of North!
Posts: 111
Likes: 0
Received 0 Likes on 0 Posts
Default

Short journeys are bad on fuel! Surely if you had a lambda fault it wouldn't be running right performance wise?
Old 16 July 2012, 07:49 PM
  #14  
Paulo P
Scooby Regular
iTrader: (42)
 
Paulo P's Avatar
 
Join Date: Oct 2001
Location: Bucks
Posts: 23,797
Likes: 0
Received 3 Likes on 3 Posts
Default

Short journeys do make it worse so you are right there Mine is running 420bhp and I average low to mid 20's to the gallon.

A broken lambda doesn't seem to affect performance, I only noticed was gone after noticing a big drop in MPG.
Old 16 July 2012, 07:57 PM
  #15  
sonic93
Scooby Regular
Thread Starter
iTrader: (16)
 
sonic93's Avatar
 
Join Date: Oct 2009
Location: borehamwood
Posts: 3,939
Received 2 Likes on 1 Post
Default

what lamda did u fit mate
Old 16 July 2012, 08:02 PM
  #16  
Paulo P
Scooby Regular
iTrader: (42)
 
Paulo P's Avatar
 
Join Date: Oct 2001
Location: Bucks
Posts: 23,797
Likes: 0
Received 3 Likes on 3 Posts
Default

I fitted a late classic 2nd hand one
Old 16 July 2012, 08:05 PM
  #17  
Dirk Diggler 75
Scooby Regular
 
Dirk Diggler 75's Avatar
 
Join Date: Mar 2010
Location: Pottering around ...
Posts: 3,573
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Paulo P
Short journeys do make it worse so you are right there Mine is running 420bhp and I average low to mid 20's to the gallon.

A broken lambda doesn't seem to affect performance, I only noticed was gone after noticing a big drop in MPG.

Same for me,replaced lambda and it's much better on fuel .........
Old 17 July 2012, 12:34 AM
  #18  
jawiimpreza
Scooby Regular
iTrader: (1)
 
jawiimpreza's Avatar
 
Join Date: Jul 2008
Location: cumbria and under bonnet
Posts: 338
Likes: 0
Received 0 Likes on 0 Posts
Default

i get 50 to 60 miles to £20 of v power and mine is running standard boost
Old 17 July 2012, 05:26 PM
  #19  
sonic93
Scooby Regular
Thread Starter
iTrader: (16)
 
sonic93's Avatar
 
Join Date: Oct 2009
Location: borehamwood
Posts: 3,939
Received 2 Likes on 1 Post
Default

really do u jesus thats good
Old 17 July 2012, 05:32 PM
  #20  
snake1906
Scooby Regular
iTrader: (4)
 
snake1906's Avatar
 
Join Date: Feb 2010
Location: cornwall
Posts: 1,151
Likes: 0
Received 0 Likes on 0 Posts
Default

i get 46 miles to £40 of momentum and thats around town but managed 300 on a tank on a run the other day
Old 17 July 2012, 05:37 PM
  #21  
JonMc
Scooby Senior
iTrader: (51)
 
JonMc's Avatar
 
Join Date: Nov 2005
Location: Wherever I park my car, that's my home
Posts: 20,491
Likes: 0
Received 2 Likes on 2 Posts
Default

10-ish gallons a week of momentum sees me get anywhere between 260 and 280 miles on the runs to work and back

It's worth getting a decent lambda Rob - personally I'd spend a bit more on a new one, and the prices have come right down in the last couple of years. The newage one used to be £350 from subaru but can now be had for less than a ton - try here...

http://www.worldcarparts.co.uk/CarPa...S/Default.aspx
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
KAS35RSTI
Subaru
27
04 November 2021 07:12 PM
Abx
Subaru
22
09 January 2016 05:42 PM
Sam Witwicky
Engine Management and ECU Remapping
17
13 November 2015 10:49 AM
the shreksta
Other Marques
26
01 October 2015 02:30 PM
yabbadoo4
ScoobyNet General
11
30 September 2015 10:33 PM



Quick Reply: my mpg real bad



All times are GMT +1. The time now is 03:45 PM.