HELP!! 04 Cooper S very high fuel consumption on the next day - MINI Cooper Forum
Go Back   MINI Cooper Forum > MINI Technical Forums > MINI Faults & Fixes > First Generation Faults & Fixes


First Generation Faults & Fixes MINI faults and fixes 2001 - 2006

Mini2.com is the premier Mini Cooper Forum on the internet. Registered Users do not see the above ads.
Reply
Similar Threads
Thread Thread Starter Forum Replies Last Post
Pathetic Fuel Consumption....Do something about it! steeve MINI Countryman 40 May 21st, 2014 08:58 AM
high pressure fuel pump leak and head office lies! Shanos General Discussion 0 Nov 29th, 2013 05:24 PM
New Blog Post - Beaulieu Motor Show: National MINI Cooper Day AMAUTOS7 General Discussion 1 Sep 26th, 2013 11:11 PM
08 Clubman S fuel consumption rising over time Blue08ClubmanS MINI Clubman 1 Nov 19th, 2012 05:55 PM
Buying a high mileage cooper s r56 - what to look out for? Minimoos Second Generation MINI Cooper S 1 Sep 14th, 2012 07:44 AM

 
LinkBack Thread Tools Rate Thread
  #1 (permalink)  
Old Apr 25th, 2014, 02:33 PM
MINI2 Newbie
Offline
 
Join Date: Apr 2014
Posts: 4
Local Time: 02:19 PM
Hungary
DIY HELP!! 04 Cooper S very high fuel consumption on the next day

Hi guys,

I have an '04 Cooper S with an Alta performance upgrade. Absolutely in love with the car.
But the car started to eat a lot of gas, almost 20l/km with no sign.
- new spark plugs - factory
- new spark cables

lambda sensors checked - working perfect
air mass flow sensor checked - working fine

Any suggestions? carbon canister valve?

Also the car sometimes only starts on the 2nd ignition. But than it starts immediately. Does not matter if the engine is cold or hot.

Any suggestions on this?

Thanks and all tips, ideas are welcome
Reply With Quote
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old Apr 25th, 2014, 03:47 PM
MINI2 Master
Offline
 
Join Date: Feb 2011
Location: South london
Posts: 1,199
Local Time: 03:19 PM
United Kingdom Male
Hi ya

When you say alta upgrade what do you mean supercharger pulley, airbox, exhaust.
There are a few things it could be

Does the car feel slow or down on power at all
Reply With Quote
  #3 (permalink)  
Old Apr 25th, 2014, 03:56 PM
MINI2 Newbie
Offline
 
Join Date: Apr 2014
Posts: 4
Local Time: 02:19 PM
Hungary
Hi,

what I know it got the supercharger upgarde and the airbox.

The car does not feel slow or down on power at all. It runs as before. Just the gas consumption in in credible. It was never an ECO car but now it is out of control.
What are your tips?
Reply With Quote
  #4 (permalink)  
Old Apr 25th, 2014, 04:09 PM
MINI2 Master
Offline
 
Join Date: Feb 2011
Location: South london
Posts: 1,199
Local Time: 03:19 PM
United Kingdom Male
Hi ya

1) Normally when they start to drink fuel it's the first 02 sensors they still work but there out of range which can cause high consumption. But you say it's been checked
2) If you have a reduced pulley check your tensoer make shore you have 1 hole showing if it's past that, you may have super charger belt slip will cause high fuel consumption.
3) Lazy bypass valve
4) my one gets cranky around 6 to 10 deg c I just reset the DME engine computer

If it has been serviced lately I would have a look at the belt,
do you know what size pulley is
Reply With Quote
  #5 (permalink)  
Old Apr 25th, 2014, 04:15 PM
MINI2 Newbie
Offline
 
Join Date: Apr 2014
Posts: 4
Local Time: 02:19 PM
Hungary
Unfortunately I have no clue about the size of the pulley. I tried to ask the previous owner but he does not know it either.
I will check does things.

How about the weird starting? Any ideas on that?

Thanks a lot
Miki
Reply With Quote
  #6 (permalink)  
Old Apr 25th, 2014, 04:29 PM
MINI2 Master
Offline
 
Join Date: Feb 2011
Location: South london
Posts: 1,199
Local Time: 03:19 PM
United Kingdom Male
Hi ya

Right for your information :-) you must have the correct supercharger belt for the pulley a standard mini belt is no good anyway I can help you there :-) alta only do a 15 or 17% pulleys for your SC, so as long as the crank and alternator pulleys are standard sizes you need a Gates K060535 or 6PK1364 this fits both size pulleys perfect like I said if you can't see the top of the last hole the belt is stretched and needs to be replaced

Starting problem could be a bad O2 sensor which would also point towards bad fuel consumption like I say normally bank 1 which is the first one from the cylinder head.
Also if you are running a standard manifold get the cat checked get a flow check carried out

Have you had your fuel pressure checked you may have a bad filter or a bad pump. The filters never get changed by mini and as a service item,

Hope this is a start :-)
Reply With Quote
  #7 (permalink)  
Old Apr 25th, 2014, 04:35 PM
MINI2 Newbie
Offline
 
Join Date: Apr 2014
Posts: 4
Local Time: 02:19 PM
Hungary
Thanks a lot. Let me check those.

Cheers,
Miki
Reply With Quote
Sponsored Links
Advertisement
 
Reply
Tags: ,



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Pathetic Fuel Consumption....Do something about it! steeve MINI Countryman 40 May 21st, 2014 08:58 AM
high pressure fuel pump leak and head office lies! Shanos General Discussion 0 Nov 29th, 2013 05:24 PM
New Blog Post - Beaulieu Motor Show: National MINI Cooper Day AMAUTOS7 General Discussion 1 Sep 26th, 2013 11:11 PM
08 Clubman S fuel consumption rising over time Blue08ClubmanS MINI Clubman 1 Nov 19th, 2012 05:55 PM
Buying a high mileage cooper s r56 - what to look out for? Minimoos Second Generation MINI Cooper S 1 Sep 14th, 2012 07:44 AM

» Recent Threads
High Centered My R56
Today 02:57 AM
Last post by whaap
Today 11:33 AM
1 Replies, 119 Views
Review - AEM Cold Air Intake
Today 10:13 AM
Last post by mikewake
Today 10:13 AM
0 Replies, 56 Views
RC Italian Job 2014
Today 12:13 AM
by mab01uk
Last post by mab01uk
Today 12:13 AM
0 Replies, 119 Views
exhaust manifold glowing red on cooper s
Sep 16th, 2008 12:24 AM
by craig87
Last post by CCroker
Yesterday 10:35 PM
16 Replies, 4,865 Views
Supercharger Oil
Nov 25th, 2014 08:34 PM
Last post by CCroker
Yesterday 10:25 PM
1 Replies, 178 Views
2011 Mini S Oil Change Light Reset
Nov 13th, 2014 03:44 PM
by wward7
Last post by Wildspark
Yesterday 09:44 PM
1 Replies, 335 Views
Expansion Tank - Alternatives?
Nov 25th, 2014 08:51 PM
Last post by Wildspark
Yesterday 09:39 PM
2 Replies, 193 Views
Bonnet Catch not Latching
Nov 25th, 2014 08:28 PM
Last post by tnoy66
Yesterday 09:25 PM
4 Replies, 250 Views
04 S won't start, battery reads fine, so does alternator
Nov 25th, 2014 10:02 PM
Last post by Restyle
Yesterday 09:06 PM
1 Replies, 174 Views
Burned exhaust valves on R56 Cooper S
Apr 20th, 2011 05:18 PM
Last post by Musx
Yesterday 08:44 PM
15 Replies, 13,182 Views
Finding Final Stage (Hedgehog) Resistor
Jul 29th, 2014 09:48 PM
Last post by Restyle
Yesterday 07:39 PM
7 Replies, 948 Views
Blower motor not working
Nov 14th, 2014 03:40 PM
Last post by Restyle
Yesterday 07:34 PM
4 Replies, 400 Views
Live feed when key in ignition
Yesterday 07:20 PM
by SteveM3
Last post by SteveM3
Yesterday 07:20 PM
0 Replies, 102 Views
heated windscreen
Nov 24th, 2014 11:19 AM
Last post by marque
Yesterday 05:41 PM
7 Replies, 441 Views
Dash light query
Nov 25th, 2014 02:03 PM
by Rab2766
Last post by Creepy coupe
Yesterday 03:36 PM
2 Replies, 205 Views
Fuel guage rising as I drive the car.
Yesterday 12:18 PM
by t1m123
Last post by t1m123
Yesterday 03:03 PM
2 Replies, 175 Views
egr valve?
Nov 19th, 2014 09:37 PM
Last post by jones2788
Yesterday 02:50 PM
5 Replies, 514 Views
Sunroof Tilting
Yesterday 12:50 PM
Last post by Creepy coupe
Yesterday 12:50 PM
0 Replies, 132 Views
Selling cvv , fullz , track1&2, dumps , logins .!!!!!!
Yesterday 11:19 AM
Last post by rich.base
Yesterday 11:19 AM
0 Replies, 212 Views
» Premium
» Auto Insurance
Wheel & Tire Center

Powered by vBadvanced CMPS v3.2.1

All times are GMT. The time now is 02:19 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.2