Notices
ScoobyNet General General Subaru Discussion
Sponsored by:
Sponsored by:

MAF Sensor playing up???

Thread Tools
 
Search this Thread
 
Old 29 August 2003, 11:34 AM
  #1  
JayTee
Scooby Regular
Thread Starter
 
JayTee's Avatar
 
Join Date: Apr 2003
Posts: 176
Likes: 0
Received 0 Likes on 0 Posts
Question

I've been told that the MAF sensor is in the Air filter box, but is there anyway to test whether it is faulty?

http://www.scoobynet.co.uk/bbs/thread.asp?ThreadID=243727
Old 29 August 2003, 11:40 AM
  #2  
greasemonkey
Scooby Regular
 
greasemonkey's Avatar
 
Join Date: Nov 2003
Location: where the wild roses grow
Posts: 5,122
Likes: 0
Received 0 Likes on 0 Posts
Post

The MAF sensor isn't in the filter box, it's in the section of inlet tract immediately after it.

It is possible to do some very rough testing by putting a digital voltmeter on the sensor's output and checking for voltage rise when the throttle is opened, but this is a very rough, inaccurate test, and is not sufficient to identify whether the sensor is misreading or not.

Unfortunately, the best way to tell whether yours is playing up is to buy another sensor element, and see if whatever problem your car is suffering from goes away.

Old 29 August 2003, 11:43 AM
  #3  
STi wanna Subaru
Scooby Regular
iTrader: (1)
 
STi wanna Subaru's Avatar
 
Join Date: Apr 2001
Location: Yorkshire
Posts: 16,517
Likes: 0
Received 0 Likes on 0 Posts
Post

I thought deltadash could tell?
Old 29 August 2003, 12:57 PM
  #4  
greasemonkey
Scooby Regular
 
greasemonkey's Avatar
 
Join Date: Nov 2003
Location: where the wild roses grow
Posts: 5,122
Likes: 0
Received 0 Likes on 0 Posts
Post

You can get a reasonable indication from DeltaDash or a Select Monitor, but this isn't 100% successful, and can often miss a sensor in the early stages of failure.

Bit of a moot point in Jay's case if he doesn't have easy access to one or the other though!

Jay, suppose now is as good a time as any to ask what's up with your car? If it's doing something it shouldn't, describing the symptoms may help us to help you pinpoint the cause.

[Edited by greasemonkey - 8/29/2003 12:58:40 PM]
Old 29 August 2003, 04:33 PM
  #5  
JayTee
Scooby Regular
Thread Starter
 
JayTee's Avatar
 
Join Date: Apr 2003
Posts: 176
Likes: 0
Received 0 Likes on 0 Posts
Post

Thanks all,
i am going to try to test it this wkend, or try to talk a mate into swapping?

as for the problem please read this thread (forget how to make clicky)
http://www.scoobynet.co.uk/bbs/thread.asp?ThreadID=243727

Old 29 August 2003, 06:26 PM
  #6  
SlowBoy
Scooby Regular
iTrader: (1)
 
SlowBoy's Avatar
 
Join Date: May 2002
Location: W. London
Posts: 2,414
Likes: 0
Received 1 Like on 1 Post
Post

Click
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
SilverM3
ScoobyNet General
8
24 February 2021 01:03 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
28 December 2015 11:07 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
12
18 November 2015 07:03 AM
Ganz1983
Subaru
5
02 October 2015 09:22 AM
thunder8
General Technical
0
01 October 2015 09:13 PM



Quick Reply: MAF Sensor playing up???



All times are GMT +1. The time now is 11:17 AM.