Notices

Uneven idle after more than usual acceleration..MAF sensor ?

Thread Tools
 
Search this Thread
 
Old 30 January 2006, 08:09 AM
  #1  
tarmacterrorist
Scooby Regular
Thread Starter
 
tarmacterrorist's Avatar
 
Join Date: Aug 2001
Posts: 803
Likes: 0
Received 0 Likes on 0 Posts
Question Uneven idle after more than usual acceleration..MAF sensor ?

Hello all

STI V import (1999)
After bursts of heavy right foot the tickover sometimes is eratic (ie neddle fluctuating between 200-1000 revs). After a few minutes tickover returns to normal. I have had this problem before & put in a new MAF sensor which cleared the problem.

Does anyone know of any other problems apart from MAF sensor that would cause the tickover to go eratic ?

Appreciate any info you can give.
Cheers Andy.
Old 30 January 2006, 05:23 PM
  #2  
Lucifer
Scooby Regular
 
Lucifer's Avatar
 
Join Date: Jan 2006
Posts: 69
Likes: 0
Received 0 Likes on 0 Posts
Default

MAF sounds like the most likely problem. Take it to a dealer and get them to plug the select monitor in for you to confirm it.
Old 30 January 2006, 06:17 PM
  #3  
impreza.dk
Scooby Regular
 
impreza.dk's Avatar
 
Join Date: Aug 2004
Location: Denmark
Posts: 41
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Lucifer
MAF sounds like the most likely problem. Take it to a dealer and get them to plug the select monitor in for you to confirm it.
If the "Check Engine" light does not come on - you Subaru dealer cannot tell you anything. This does however not tell you the MAF is working correctly! Try change it is proberly the only solution.
Old 30 January 2006, 07:30 PM
  #4  
tarmacterrorist
Scooby Regular
Thread Starter
 
tarmacterrorist's Avatar
 
Join Date: Aug 2001
Posts: 803
Likes: 0
Received 0 Likes on 0 Posts
Default Thanks for the reply guys

The last time it went funny it did turn out to be the MAF sensor.
The select monitor did not pick this up when plugged in looking for problems.

Might just try getting a new one & seeing what happens.

Cheers
Andy.
Old 04 February 2006, 09:37 PM
  #5  
tarmacterrorist
Scooby Regular
Thread Starter
 
tarmacterrorist's Avatar
 
Join Date: Aug 2001
Posts: 803
Likes: 0
Received 0 Likes on 0 Posts
Default Okay changed MAF but idle still between 200 & 1000

Seems the new MAF did not sort the problem out.
Anyone have any other ideas ?

Only thing recently been done was replacement of the knock link sensor.
The select monitor showed no error codes after knock link installed.

Maybe I need to get someone with a select monitor to look again.

Cheers Andy.
Old 04 February 2006, 10:32 PM
  #6  
scooby-tc
Scooby Regular
iTrader: (2)
 
scooby-tc's Avatar
 
Join Date: Mar 2001
Location: Here and there
Posts: 8,353
Likes: 0
Received 0 Likes on 0 Posts
Default

'improved than normal acceleration' would normally indicate that the car is running a bit lean on WOT may be worth your while getting hold of a wideband monitor to check the fuelling
Old 05 February 2006, 10:04 PM
  #7  
crazybri
Scooby Regular
 
crazybri's Avatar
 
Join Date: May 2005
Posts: 129
Likes: 0
Received 0 Likes on 0 Posts
Default

i also get this in my 01 wrx...

if ive been thrashing it for a while and stop the car, leave it for a minute, then turn it off... if i start the car a few minutes later the car will idle uneven and i will be able to feel the car wobbling.
Old 06 February 2006, 03:54 AM
  #8  
ThugAngel
Scooby Newbie
 
ThugAngel's Avatar
 
Join Date: Oct 2005
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default

make sure your intake is sealed tight. i had the same problem thought it was the maf but all i did was tighten up everything before and after the maf had no more problems (yet)
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
KAS35RSTI
Subaru
27
04 November 2021 07:12 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
12
18 November 2015 07:03 AM
Bikerboygreen
Insurance
1
18 October 2015 08:02 PM
Ganz1983
Subaru
5
02 October 2015 09:22 AM
thunder8
General Technical
0
01 October 2015 09:13 PM



Quick Reply: Uneven idle after more than usual acceleration..MAF sensor ?



All times are GMT +1. The time now is 10:35 AM.