unplugging MAF
03-31-2012, 10:00 PM
#1
Junior Member
Thread Starter
Join Date: Mar 2012
Location: Jacksonville Fl
Posts: 56
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86 IROC
Engine: 355 Stealth Ram
Transmission: 700R4
Axle/Gears: 3.23
unplugging MAF
if i unplug my maf will the computer run in speed density successfully?
03-31-2012, 10:05 PM
#2
Senior Member
Join Date: Mar 2011
Location: dothan, al
Posts: 668
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1988 pontiac trans am
Engine: None
Transmission: None
Axle/Gears: 10 Bolt
Re: unplugging MAF
No, it will throw some codes at the computer and probably not run right, you wiring harness and computer is set up for MAF. You will need to change your harness and re tune your computer to run on speed density. You will need the harness out of a 91-92 TPI and the computer. MAF is a completely different system than Speed Density
04-02-2012, 09:13 PM
#7
Member
iTrader: (1)
Join Date: Oct 2009
Location: Mountlake Terrace, Wa
Posts: 405
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86 Iroc + 83 Firebird
Engine: Iroc 305 TPI, Firebird 305 4bbl
Transmission: 700r4 in both.
Axle/Gears: Iroc 3.27 Firebird 3.23
Re: unplugging MAF
yeah it'll just throw codes and run bad.
Trending Topics
04-02-2012, 09:22 PM
#8
Supreme Member
iTrader: (1)
Join Date: Nov 2010
Location: Arizona
Posts: 1,062
Likes: 0
Received 1 Like
on
1 Post
Car: 1989 Camaro RS--
Engine: MPFI
Transmission: 700r4
Re: unplugging MAF
I have to run with mine disconnected, or the car will stall out. I am going to get a new MAF, but it does not run bad unplugged. I read on another thread that it won't hurt anything and a lot of guys are running with the dicconnected. Hmmmm
Last edited by camarosrock1989; 06-03-2012 at 03:02 PM.
04-07-2012, 07:37 PM
#9
Re: unplugging MAF
With the MAF unplugged the ECM uses the fuel tables to adjust fuel mixture. If you have a good tune it should run fine with it unplugged, but it will run either lean or rich so it is not recommended to run without it for long. I ran mine for two weeks with it unplugged and actually got better gas mileage, but performance and response was down.
06-02-2012, 07:41 PM
#10
Junior Member
Join Date: Feb 2012
Location: Spirit Lake, ID
Posts: 77
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86 IROC-Z
Engine: 355
Transmission: T5
Axle/Gears: 3.23
Re: unplugging MAF
Did you get a new maf yet?? Mine is actin the same way, was thinking of replacing my maf?! Thanks for any info!
06-03-2012, 03:17 PM
#11
Supreme Member
iTrader: (1)
Join Date: Nov 2010
Location: Arizona
Posts: 1,062
Likes: 0
Received 1 Like
on
1 Post
Car: 1989 Camaro RS--
Engine: MPFI
Transmission: 700r4
Re: unplugging MAF
Irockid I have not replaced it yet, it runs great. No problems yet. I will be replacing it, just hope when i do that the after market one will work as good as factory one's.
I have heard that they don't.
I have heard that they don't.
06-03-2012, 05:27 PM
#12
Supreme Member
Join Date: Aug 2004
Location: Norwich, CT
Posts: 1,213
Likes: 0
Received 3 Likes
on
2 Posts
Car: '89 Trans AM/'88 GTA
Engine: (2) Tuned Port L98's
Re: unplugging MAF
Id go with a direct Bosch replacement. And, avoid remanufactured ones. Ive had back luck numerous times with remanufactured Bosch sensors. Running the car long-term with the MAF unplugged is unhealthy and, I for one don't reccomend it. Short-term, yes.. get to work or grab groceries.
06-03-2012, 07:43 PM
#13
Junior Member
Join Date: Feb 2012
Location: Spirit Lake, ID
Posts: 77
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86 IROC-Z
Engine: 355
Transmission: T5
Axle/Gears: 3.23
Re: unplugging MAF
Thanks for the feedback. I recently purchased a reman Bosch at napa. It doesn't seem to be working properly. It's still under warranty, hopefully it's replacement works better. I'll let you know how I make out.
06-03-2012, 08:06 PM
#14
Supreme Member
iTrader: (1)
Join Date: Nov 2010
Location: Arizona
Posts: 1,062
Likes: 0
Received 1 Like
on
1 Post
Car: 1989 Camaro RS--
Engine: MPFI
Transmission: 700r4
Re: unplugging MAF
I would like to hear back, curious if you get a better one. So can you buy a new bosch? Instead of a reman? What did you have to pay for it?
06-04-2012, 02:55 PM
#15
Junior Member
Join Date: Feb 2012
Location: Spirit Lake, ID
Posts: 77
Likes: 0
Received 0 Likes
on
0 Posts
Car: 86 IROC-Z
Engine: 355
Transmission: T5
Axle/Gears: 3.23
Re: unplugging MAF
I just installed the bosch maf I got from napa with another one... and it runs much better!!! No codes, better throttle response than when it was unplugged, seems great! This project has been frustrating, i think Ive got all the bugs worked out. Thanks for the replies and good luck! Keep posting with your results.
Thread
Thread Starter
Forum
Replies
Last Post
