Notices
Engine Management and ECU Remapping This section is to discuss the various aspects of engine management modification for your Subaru.

Still over revving, suggested electronic issue

Thread Tools
 
Search this Thread
 
Old 28 February 2014, 04:40 PM
  #1  
matt12
Scooby Regular
Thread Starter
iTrader: (2)
 
matt12's Avatar
 
Join Date: Feb 2009
Location: south wales
Posts: 408
Likes: 0
Received 0 Likes on 0 Posts
Default Still over revving, suggested electronic issue

Had a niggling issue for a little while now that when I engage the clutch the car over revs, it's not persistent, sometimes it doesn't do it, sometimes are worse than others,

The car was mapped last year in October and had the issue then, it was suggested that the problem would be the Icv,

Since then I've replaced the Icv and looked at a few other things to no avail,
After giving in it went to a specialist today who checked everything that could cause this issue, from vacuum leaks, gearbox and clutch switches, maf etc, nothing was found out of the ordinary and the cause I was told could be diagnosed through another map,

The car is a v8 sti by the way

If it was an electronic issue I'm suprised it Wouldn't of been picked up on its first map so if any one else has had the same niggling issue before or any ideas would be good to hear your views,

Cheers
Old 28 February 2014, 05:35 PM
  #2  
Will Scoobydood Taylor
Scooby Newbie
 
Will Scoobydood Taylor's Avatar
 
Join Date: Jan 2014
Location: carlisle
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Default

I have the same v8 sti and the same problem since it was mapped. Before it was mapped it would do it in 5th sometimes but I got pops and bangs mapped in in October by andy Forrestand it then decided to do it through every gear. Took mine to see rob ostle and he said it will be that with them being mapped in so aggressively on overrun that that was the cause.Reluctantly took it back to andy Forrest and got them removed. Still not solved. Still do the same but now my scoob has decided it doesn't want to boost as good as before. Also I noticed that since having the pops and bangs, when I rev it high and let it slow itself down that if I go for a higher gear that the clutch pedal feels like the clutch is about to give up. Not sure what this is and its really worrying me now. Mines going in to stan Palmer middle of next month for coilovers to be fitted and to fit my new brake setup but they're going to clean the icv out and hopefully should sort it, however this sounds identical to your problem and at the exact same time
Old 28 February 2014, 05:41 PM
  #3  
matt12
Scooby Regular
Thread Starter
iTrader: (2)
 
matt12's Avatar
 
Join Date: Feb 2009
Location: south wales
Posts: 408
Likes: 0
Received 0 Likes on 0 Posts
Default

I had pops and bangs aswell when mine was mapped, however mine was doing it before the map, would be interesting if any mappers see this thread and have any views
Old 28 February 2014, 05:47 PM
  #4  
Will Scoobydood Taylor
Scooby Newbie
 
Will Scoobydood Taylor's Avatar
 
Join Date: Jan 2014
Location: carlisle
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Default

Yeah it needs sorted. Is yours ecutek aswel? And did you ever rev it to 7000 rpm and let off then blip the throttle? It was contrant rapid pops and bangs and that's when I noticed the clutch pedal issue. I know its not the clutch though as its only 6 months old and not been abused
Old 28 February 2014, 05:51 PM
  #5  
matt12
Scooby Regular
Thread Starter
iTrader: (2)
 
matt12's Avatar
 
Join Date: Feb 2009
Location: south wales
Posts: 408
Likes: 0
Received 0 Likes on 0 Posts
Default

Yes it's ecutek, no to the 7k rpm
Old 28 February 2014, 08:13 PM
  #6  
Will Scoobydood Taylor
Scooby Newbie
 
Will Scoobydood Taylor's Avatar
 
Join Date: Jan 2014
Location: carlisle
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Default

What sort of power? I'm at 356
Old 01 March 2014, 08:00 AM
  #7  
matt12
Scooby Regular
Thread Starter
iTrader: (2)
 
matt12's Avatar
 
Join Date: Feb 2009
Location: south wales
Posts: 408
Likes: 0
Received 0 Likes on 0 Posts
Default

331/311
Old 01 March 2014, 08:06 AM
  #8  
Will Scoobydood Taylor
Scooby Newbie
 
Will Scoobydood Taylor's Avatar
 
Join Date: Jan 2014
Location: carlisle
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Default

Any mods?
Old 01 March 2014, 08:48 AM
  #9  
Dave Y
Scooby Regular
Support Scoobynet!
iTrader: (52)
 
Dave Y's Avatar
 
Join Date: Nov 2008
Location: Forest of Dean
Posts: 5,167
Received 133 Likes on 97 Posts
Default

Did it do this before the remap?
I had a similar problem after a remap i was advised it was the icv.I went to several specialists trying to solve this paying £70 approx a go. I eventually went back to the mapper who suprise suprise was able to fix the problem.Then charged me again for the priviledge.
Old 01 March 2014, 09:16 AM
  #10  
Will Scoobydood Taylor
Scooby Newbie
 
Will Scoobydood Taylor's Avatar
 
Join Date: Jan 2014
Location: carlisle
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Default

Mine had the problem in 5th before my map however it had been mapped previously
Old 01 March 2014, 10:58 AM
  #11  
matt12
Scooby Regular
Thread Starter
iTrader: (2)
 
matt12's Avatar
 
Join Date: Feb 2009
Location: south wales
Posts: 408
Likes: 0
Received 0 Likes on 0 Posts
Default

The weird thing about mine is that it was doing it before the map and like you Dave have spent good money trying to solve the problem so can only assume it's an issue electronically. problem is that it is a long trek just to sort out a little annoying problem, I'm going to have to eventually bite the bullet and get it sorted but wonder if there are any improvements I can make before I go, quite happy power wise and can't justify spending money on a new turbo and injectors etc, any cost effective mods that might be worth wile before I take it for another map?
Old 01 March 2014, 02:02 PM
  #12  
The Stitcher
Scooby Senior
iTrader: (12)
 
The Stitcher's Avatar
 
Join Date: Apr 2006
Location: south wales rhondda
Posts: 4,067
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by matt12
Had a niggling issue for a little while now that when I engage the clutch the car over revs, it's not persistent, sometimes it doesn't do it, sometimes are worse than others,

The car was mapped last year in October and had the issue then, it was suggested that the problem would be the Icv,

Since then I've replaced the Icv and looked at a few other things to no avail,
After giving in it went to a specialist today who checked everything that could cause this issue, from vacuum leaks, gearbox and clutch switches, maf etc, nothing was found out of the ordinary and the cause I was told could be diagnosed through another map,

The car is a v8 sti by the way

If it was an electronic issue I'm suprised it Wouldn't of been picked up on its first map so if any one else has had the same niggling issue before or any ideas would be good to hear your views,

Cheers
I have an issue with mine when I change gear at normal drive its like it revs up a little on gear change but when I give it some beans its fine, Was going to change icv valve but have seen others with same issue and they have spent out on new part and still no luck
would be nice to know exactly what it is to sort it out but no solid answer yet so hope this thread can do that

mine is a standard 2003 wrx sti with ppp
Old 01 March 2014, 02:17 PM
  #13  
Will Scoobydood Taylor
Scooby Newbie
 
Will Scoobydood Taylor's Avatar
 
Join Date: Jan 2014
Location: carlisle
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Default

Hopefully someone will be able to give is all an idea
Old 01 March 2014, 07:18 PM
  #14  
Bob Rawle
Ecu Specialist
 
Bob Rawle's Avatar
 
Join Date: Mar 1999
Location: Swindon
Posts: 3,938
Likes: 0
Received 1 Like on 1 Post
Default

If this is revving or holding up the revs between gear shifts then it does relate to ecu settings but not to the remap, the std settings that are pertinent make a car do this, when mapping I normally adjust these as a matter of course, its a known thing. Normally only manifests itself on a WRX as opposed to an STi.

The map settings involved are not visible when open source mapping, only when using Ecutek.

so don't spend money changing parts it won't really help

cheers

bob
Old 01 March 2014, 07:22 PM
  #15  
Bob Rawle
Ecu Specialist
 
Bob Rawle's Avatar
 
Join Date: Mar 1999
Location: Swindon
Posts: 3,938
Likes: 0
Received 1 Like on 1 Post
Default

Oh and Dave before you jump in, your car developed the fault when it was NOT a known issue, like I said not the fault of any mapper but the std ecu settings, and not easy to diagnose and find. I would also point out you went to everyone else for solutions before you actually came back to me about it.

Why is everyone so wise after the event ... lol

cheers
Old 01 March 2014, 08:22 PM
  #16  
matt12
Scooby Regular
Thread Starter
iTrader: (2)
 
matt12's Avatar
 
Join Date: Feb 2009
Location: south wales
Posts: 408
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for clearing this up bob, will be in contact soon and hopefully come up in the near future to iron it out,
Cheers
Old 01 March 2014, 08:46 PM
  #17  
Dave Y
Scooby Regular
Support Scoobynet!
iTrader: (52)
 
Dave Y's Avatar
 
Join Date: Nov 2008
Location: Forest of Dean
Posts: 5,167
Received 133 Likes on 97 Posts
Default

Originally Posted by Bob Rawle
Oh and Dave before you jump in, your car developed the fault when it was NOT a known issue, like I said not the fault of any mapper but the std ecu settings, and not easy to diagnose and find. I would also point out you went to everyone else for solutions before you actually came back to me about it.

Why is everyone so wise after the event ... lol

cheers
You told me it was the icv LOL
You said it was nothing to do with the mapping LOL.
Your mate in Ledbury couldnt help so what was i meant to do?It was only after you had heard i had been to several "specialists" you got in touch. LOL
What a coincidence it developed the fault as you were mapping.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
SilverM3
ScoobyNet General
8
24 February 2021 01:03 PM
PetrolHeadKid
Driving Dynamics
10
05 October 2015 05:19 PM
FuZzBoM
Wheels, Tyres & Brakes
16
04 October 2015 09:49 PM
psport
Subaru Parts
3
04 October 2015 07:35 PM
blackieblob
ScoobyNet General
2
02 October 2015 05:34 PM



Quick Reply: Still over revving, suggested electronic issue



All times are GMT +1. The time now is 12:06 PM.