limp mode on long grades on interstate - 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
 
LinkBack Thread Tools Rate Thread
  #1 (permalink)  
Old Nov 19th, 2012, 10:37 PM
MINI2 Newbie
Offline
 
Join Date: Jun 2012
Location: Johnson City, TN, US
Posts: 2
Local Time: 02:00 AM
United States Male
limp mode on long grades on interstate

my 04 MCS goes into limp mode when traveling up a long grade on the interstate. Triggers fault code for misfire in cyclender 4. I have had the coilpack changed, plug wires, plugs. Had the car to two different dealers and two independant garages. Dealerships just tell me it's plug or a wire and then blow me off. The guy at the last shop put a computer on the car and drove up a nearby mountain till the fault occured. According to him, the car never developed a miss but he couldn't find the cause.

I'm thinking maybe a problem with the bypass valve or maybe the coilpack is a cheap aftermarket piece and should be replaced with a hotter unit.

Any thoughts? Any contact information as to who to talk to at MINI. Seems like a safety issue (I keep thinking an 18 wheeler is going to land in my back seat).
Reply With Quote
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old Nov 20th, 2012, 03:44 PM
MINI2 Master
Offline
 
Join Date: Feb 2011
Location: South london
Posts: 789
Local Time: 08:00 AM
United Kingdom Male
Hi ya

Uuuuuummmmm it hard to tell with out looking at the car really
If they have changed the coil pack and leads and plugs.
There are a lot of other things it could be :-(.

I would check the bypass valve anyway if the car is down on power or gutless it could be Good place to start but.
But it would not throw up a misfire code unless there were other things wrong with the car.
When was the car last serviced ? Is it a standard MCS
I would get you fuel pressure checked on the fuel rail. you my find the fuel filter needs changing and i would also get the injectors checked and cleaned.
You could put a can of fuel treatment like BG44K in it see if it helps if you have a bad injector but if there bad there bad and normally need clean properly

Hope this helps
Reply With Quote
  #3 (permalink)  
Old Nov 20th, 2012, 04:09 PM
MINI2 Newbie
Offline
 
Join Date: Jun 2012
Location: Johnson City, TN, US
Posts: 2
Local Time: 02:00 AM
United States Male
Thanks for the input, the car was serviced a couple weeks ago. runs great around town. Will check the fuel pressure and infectors.
Reply With Quote
  #4 (permalink)  
Old Nov 20th, 2012, 04:36 PM
MINI2 Master
Offline
 
Join Date: Feb 2011
Location: South london
Posts: 789
Local Time: 08:00 AM
United Kingdom Male
Quote: Originally Posted by Hollyfield (original)
Thanks for the input, the car was serviced a couple weeks ago. runs great around town. Will check the fuel pressure and infectors.

Hi Ya

i take it the car was like it before it was serviced and nothing done during service has caused the problem
It may be one of those thing where you had few faults all together.

If the Bypass valve was on it last legs it could cause low power at higher load/rpm. the valve causes what they call a yoyo effect at about 3000-3500 ish rpm, but again depends on the car, or it can just causes low power and puts car in to limp mod but not always.
The lack of power would be less noticeable around town but more noticeable when you try to stretch its legs. so would be worth a look at it anyway.
Most of the older BPV don't close properly and there a mod to fix this just a case of setting it up properly.

http://www.mini2.com/forum/first-gen...libration.html

Hope this is of some help
Reply With Quote
Sponsored Links
Advertisement
 
Reply


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

» Recent Threads
Help, is this a cooper S??
Yesterday 09:29 PM
by markdm
Last post by markdm
Today 01:29 AM
6 Replies, 139 Views
Cooper S Engine Rebuild
Yesterday 07:44 AM
Last post by marque
Yesterday 11:49 PM
1 Replies, 122 Views
Does your Mini have a name?
Mar 25th, 2014 10:00 PM
Last post by Grumpee1
Yesterday 11:29 PM
18 Replies, 1,079 Views
O2 sensors in exhaust
Yesterday 06:03 PM
Last post by marque
Yesterday 11:24 PM
1 Replies, 85 Views
Mini Cooper S R56 Timing Chain Tensioner
Feb 24th, 2013 11:53 AM
Last post by MCMULC
Yesterday 09:08 PM
9 Replies, 6,673 Views
Just bought mini what extras do I need to tell insurance about
Mar 19th, 2014 03:51 PM
Last post by JohnnyC
Yesterday 07:43 PM
7 Replies, 608 Views
should I wait or not?
Apr 14th, 2014 12:07 AM
Last post by mab01uk
Yesterday 07:10 PM
7 Replies, 437 Views
Constant problems with my R50. Should I keep it or replace? Need advice please
Apr 3rd, 2014 03:52 PM
by kteara
Last post by mab01uk
Yesterday 07:03 PM
14 Replies, 924 Views
Spare wheel 55 plate cooper
Yesterday 01:32 PM
by ajn
Last post by mab01uk
Yesterday 07:00 PM
2 Replies, 93 Views
Need new rims, any ideas
Apr 8th, 2014 10:14 PM
Last post by CoolioMcPimp
Yesterday 06:44 PM
3 Replies, 310 Views
Cup holder inserts
Yesterday 06:23 PM
Last post by Captain5691
Yesterday 06:23 PM
0 Replies, 72 Views
Electrical Issues with 2003 Cooper base
Mar 10th, 2014 07:09 PM
Last post by The Nun
Yesterday 05:29 PM
3 Replies, 457 Views
Strange Braking Noise
Jan 28th, 2014 08:27 PM
Last post by The Nun
Yesterday 05:22 PM
8 Replies, 969 Views
Mini One D - engine out, how difficult?
Jan 8th, 2014 09:36 PM
Last post by scott132
Yesterday 03:19 PM
3 Replies, 706 Views
R52 A pillar interior trim removal
Yesterday 08:11 AM
Last post by clockworks
Yesterday 02:57 PM
2 Replies, 85 Views
Boot switch not working
Mar 8th, 2014 10:23 AM
Last post by burnstar
Yesterday 11:04 AM
4 Replies, 410 Views
Attention to Detail (UK) - spot the difference!
Yesterday 09:43 AM
by sailesh
Last post by burnstar
Yesterday 10:47 AM
1 Replies, 138 Views
Changing Oil????
Mar 3rd, 2014 12:32 PM
Last post by habi222
Yesterday 09:31 AM
8 Replies, 751 Views
Mini Cooper S Rebuild
Yesterday 07:49 AM
Last post by budgie2014
Yesterday 07:49 AM
0 Replies, 101 Views
Engine mounts
Dec 22nd, 2013 07:47 PM
Last post by johnnycatbiscuit
Yesterday 04:21 AM
3 Replies, 810 Views
» Premium
» Auto Insurance
Wheel & Tire Center

Powered by vBadvanced CMPS v3.2.1

All times are GMT. The time now is 07:00 AM.



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