MAF Sensor specs? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 01-02-2007, 11:26 PM   #1
Junior Member
Thread Starter
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default MAF Sensor specs?

Does anyone know the voltage range of a 2000 L67 MAF sensor?

What about the frequency range?
2000SilverBullet is offline   Reply With Quote
Old 01-02-2007, 11:33 PM   #2
Junior Member
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
Custom88 is on a distinguished road
Default

the frequency range is between 2,000-10,000 HZ

EDIT: My source was the factory service manual.
Custom88 is offline   Reply With Quote
Old 01-03-2007, 12:39 AM   #3
Senior Member
True Car Nut
 
Join Date: May 2003
Location: Holt, MI & Lima, OH
Posts: 3,022
Thanks: 0
Thanked 0 Times in 0 Posts
dbtk2 is on a distinguished road
Default

Frequency range actually goes to 11500 and if your PCM tables went higher than that the sensor is actually able to go up to ~15000 or so. (so scaling down the MAF reading with an AFC and then increasing the values in your MAF table to correct for the AFC would actually allow you to use the MAF at higher frequencies than 11500.)
dbtk2 is offline   Reply With Quote
Old 01-03-2007, 12:58 AM   #4
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

I'll strongly caution against the AFC'*. They have a bad track record here.
willwren is offline   Reply With Quote
Old 01-03-2007, 01:04 AM   #5
Junior Member
Thread Starter
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default

Thanks.
That explains why I have to use a certain setting for my Water injection controller.

If my range went to 15,000 it would be more typical of a normal stock MAF (per the injection manual) and allow me to use a more progressive setting.

Oh well, it works fine like this with no bogging and great Kr control up to 12 psi boost and +4 degrees of timing. :P
2000SilverBullet is offline   Reply With Quote
Old 01-03-2007, 01:11 AM   #6
Senior Member
True Car Nut
 
Join Date: May 2003
Location: Holt, MI & Lima, OH
Posts: 3,022
Thanks: 0
Thanked 0 Times in 0 Posts
dbtk2 is on a distinguished road
Default

Quote:
Originally Posted by willwren
I'll strongly caution against the AFC'*. They have a bad track record here.
I agree they aren't the most reliable thing, just letting him know that it is an option to scale the reading down if he needs to....probably dont' want to scale it TOO much though, not more than like 15% or so.
dbtk2 is offline   Reply With Quote
Old 01-03-2007, 01:14 AM   #7
Junior Member
Thread Starter
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default

I am not interested in scaling it or using a AFC.
I tried one once and it didn't work for long.
2000SilverBullet is offline   Reply With Quote
Old 01-03-2007, 01:20 AM   #8
Junior Member
Thread Starter
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default

How do you know if the MAF sensor is working properly?

How do they fail?

Is there a simple test to ensure it is up to spec?
2000SilverBullet is offline   Reply With Quote
Old 01-03-2007, 01:35 AM   #9
Junior Member
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
Custom88 is on a distinguished road
Default

I think you'd have to monitor it using a tech II to see if the frequency changed according to air temperature and engine RPM?
Custom88 is offline   Reply With Quote
Old 01-03-2007, 10:32 AM   #10
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

Well, it could switch between enhanced and standard mode randomly and lose the setting or the display could scramble like mine have. I know mine still works, because I increased the signal and my LTFT got closer to where it should be. But I don't know what setting it is at anymore. Trying enhanced mode would be impossible at this point.

I've heard wiring it so it'* in the cabin helps out with life expectancy.
J Wikoff is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2001 bonneville se. need ohm specs for fuel lvl sensor 1989_IROC-Z Pontiac 2 02-29-2012 02:50 PM
MAF Sensor egladman 1987-1991 21 04-03-2003 07:43 PM
Maf Sensor Damemorder 1992-1999 2 11-12-2002 09:13 PM
Screen on MAF Sensor? Reverand Jim 1992-1999 7 11-10-2002 01:29 AM
MAF Sensor (ECM Code 34) Reverand Jim 1992-1999 8 11-05-2002 03:58 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 11:11 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.