Notices
General Technical
Sponsored by:
Sponsored by: CARiD

Going MAFLESS

Thread Tools
 
Search this Thread
 
Old Jul 17, 2013 | 11:38 PM
  #1  
The Rig's Avatar
The Rig
Thread Starter
Scooby Regular
20 Year Member
iTrader: (13)
 
Joined: Dec 2002
Posts: 7,891
Likes: 8
Default Going MAFLESS

So, when your early classic gets remapped and is now Mafless, its using the MAP sensor, cool.

Since this my idle is poor, idles 1500 then drops to 1000 then back to 1500 then settles at 1000 then can drop to 700 or so etc etc and when starting idles badly until revved no matter what the temp etc, so, could the MAP sesnsor be at fault ?

if so, which on this pic is it LOL

Reply
Old Jul 17, 2013 | 11:44 PM
  #2  
53's Avatar
53
Scooby Senior
iTrader: (41)
 
Joined: Dec 2005
Posts: 16,742
Likes: 4
From: Standing Up
Default

It's more than like poorly tabled fueling for the cold start, but for reference the map sensor is top middle Also make sure your ICV is spotless Put a load of WD40 down the feed tube and reattach and repeat Worked for me on my idle, although when I had simtek it was simply poorly executed mapping to blame

Last edited by 53; Jul 17, 2013 at 11:46 PM.
Reply
Old Jul 18, 2013 | 12:10 AM
  #3  
The Rig's Avatar
The Rig
Thread Starter
Scooby Regular
20 Year Member
iTrader: (13)
 
Joined: Dec 2002
Posts: 7,891
Likes: 8
Default

Sound, cheers bud, i have the mapper coming out next week to take another look as it was only mapped couple weeks ago,but its not always when its cold,i.e in the morning, it can be, even on these hot days, if left for a couple of hours it still does it, even tho its not "cold" altho it is cold as in engine start i guess LOL,when its warm it can start like a right pig, fires up at like 300 rpm and splutters its way to proper idle speed if i help it with the throttle and sometiems stinks of fuel
Reply
Old Jul 18, 2013 | 12:17 AM
  #4  
Jolly Green Monster's Avatar
Jolly Green Monster
Former Sponsor
iTrader: (4)
 
Joined: Jan 2001
Posts: 16,548
Likes: 2
From: ECU Mapping - www.JollyGreenMonster.co.uk
Default

As 53 said. Nothing to do with being mafless. Mapping issue.
Reply
Old Jul 18, 2013 | 12:19 AM
  #5  
53's Avatar
53
Scooby Senior
iTrader: (41)
 
Joined: Dec 2005
Posts: 16,742
Likes: 4
From: Standing Up
Default

Yeah cold start as in fresh start rather than just temperature

Simon JGM sorted out my Simtek previous mapper was shyte
Reply
Old Jul 18, 2013 | 12:19 AM
  #6  
53's Avatar
53
Scooby Senior
iTrader: (41)
 
Joined: Dec 2005
Posts: 16,742
Likes: 4
From: Standing Up
Default

Lol Speak of the Monster
Reply
Old Jul 18, 2013 | 12:23 AM
  #7  
jura11's Avatar
jura11
Scooby Regular
15 Year Member
iTrader: (7)
 
Joined: Apr 2010
Posts: 10,523
Likes: 1
Default

As above Simon and Stu suggest is the mapping issue,this should be easily mapped out

Jura
Reply
Old Jul 18, 2013 | 12:26 AM
  #8  
Jolly Green Monster's Avatar
Jolly Green Monster
Former Sponsor
iTrader: (4)
 
Joined: Jan 2001
Posts: 16,548
Likes: 2
From: ECU Mapping - www.JollyGreenMonster.co.uk
Default

Originally Posted by 53
Yeah cold start as in fresh start rather than just temperature

Simon JGM sorted out my Simtek previous mapper was shyte
Your post seems a little subtle stu. Think you should just say what you think lol
Reply
Old Jul 18, 2013 | 12:30 AM
  #9  
The Rig's Avatar
The Rig
Thread Starter
Scooby Regular
20 Year Member
iTrader: (13)
 
Joined: Dec 2002
Posts: 7,891
Likes: 8
Default

Cheers guys, hoping it can be solved then when Duncan comes back up this way next week, thing is, it idles fine once its running after its had its funny few mins of running poor from starting cold or hot.
Reply
Old Jul 18, 2013 | 12:44 AM
  #10  
53's Avatar
53
Scooby Senior
iTrader: (41)
 
Joined: Dec 2005
Posts: 16,742
Likes: 4
From: Standing Up
Default

Originally Posted by Jolly Green Monster
Your post seems a little subtle stu. Think you should just say what you think lol
Should have read the manual

Reply
Old Jul 18, 2013 | 08:30 AM
  #11  
Jolly Green Monster's Avatar
Jolly Green Monster
Former Sponsor
iTrader: (4)
 
Joined: Jan 2001
Posts: 16,548
Likes: 2
From: ECU Mapping - www.JollyGreenMonster.co.uk
Default

Originally Posted by 53
Should have read the manual

Pmsl
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
scoob1985
Wanted
5
Oct 13, 2015 04:02 PM
scoob1985
Engine Management and ECU Remapping
28
Oct 9, 2015 01:59 PM
ossett2k2
Engine Management and ECU Remapping
15
Sep 23, 2015 09:11 AM
ossett2k2
Lighting and Other Electrical
3
Sep 22, 2015 09:39 PM
Welloilbeefhooked
Engine Management and ECU Remapping
5
Sep 12, 2015 05:32 PM




All times are GMT +1. The time now is 06:23 AM.