5.0L General Discussion This section is for non-tech specific information pertaining to 5.0L Mustangs.

Mass Air Problems

Thread Tools
 
Search this Thread
 
Old 08-22-2009, 02:10 PM
  #1  
393strokervert
1st Gear Member
Thread Starter
 
393strokervert's Avatar
 
Join Date: Jul 2009
Location: Florida
Posts: 59
Default Mass Air Problems

I have a C&L mass air housing & I beleive the stock sensor. when I bought the car, the filter was in the fender. last week, I bought a huge K&N cone filter & put it on the end of the mass air. the car was already warmed up when I put it on because did it at the store. it ran ok but idled rough. then it sat for a week & yesterday I started it up & it would barely run cold. from what I have read,the C&L does not like cone filters. today I decided to unplug the mass air just to see what it would do & to my surprise, it idles much better, throttle response is greatly improved & it feels like I picked up 30+ hp/tq with the mass air unplugged. of course my CEL is on & I have some "light" part throttle issues but overall I am stunned.
my question is, will it hurt anything if I drive it around unplugged for a while until I can get another mass air system?
also what brand would you guy's recommend?
sorry for the long post & thanks in advance for any help...
393strokervert is offline  
Old 08-22-2009, 02:30 PM
  #2  
Milton
3rd Gear Member
 
Milton's Avatar
 
Join Date: Jul 2007
Location: ontario
Posts: 720
Default

why not but the old filter back in till you can get, till you can fix the problem if thats what caused it
Milton is offline  
Old 08-22-2009, 02:34 PM
  #3  
393strokervert
1st Gear Member
Thread Starter
 
393strokervert's Avatar
 
Join Date: Jul 2009
Location: Florida
Posts: 59
Default

that is a good point & I might do that but it has never run this good ,thats why I asked. Thanks for the response.
393strokervert is offline  
Old 08-22-2009, 05:41 PM
  #4  
scatfox331
1st Gear Member
 
scatfox331's Avatar
 
Join Date: Aug 2009
Location: arizona
Posts: 73
Default

when you unplg the maf sensor the computer reverts to a back up program witch is actually speed density. they have this in case the maf takes a crap.
scatfox331 is offline  
Old 08-22-2009, 05:55 PM
  #5  
393strokervert
1st Gear Member
Thread Starter
 
393strokervert's Avatar
 
Join Date: Jul 2009
Location: Florida
Posts: 59
Default

Originally Posted by scatfox331
when you unplg the maf sensor the computer reverts to a back up program witch is actually speed density. they have this in case the maf takes a crap.
Thanks, that makes sense.
can anyone recommend a good Mass Air unit?
393strokervert is offline  
Old 08-22-2009, 06:05 PM
  #6  
primetime5.0
6th Gear Member
 
primetime5.0's Avatar
 
Join Date: Dec 2003
Location: United States
Posts: 9,587
Default

I love my pmas 95mm.. you'll pay a pretty penny though
primetime5.0 is offline  
Old 08-22-2009, 06:10 PM
  #7  
Liquid_02
4th Gear Member
 
Liquid_02's Avatar
 
Join Date: May 2005
Location:
Posts: 1,267
Default

Originally Posted by 393strokervert
Thanks, that makes sense.
can anyone recommend a good Mass Air unit?
Did you oil the filter? If you did there's your problem. Never use an oiled filter on a MAF application. Will get stuck on the filament and give in-correct readings and lead to MAF failure. Clean your MAF and get rid of the oiled filter.

If you want a new MAF look into the Pro-M 80 or Pro-M 90, Pro-M 80 will be more than enough. They have 360 degree sampling for the best possible reading, and they are arguably the best MAF manufacturer on the market, though they are expensive.
Liquid_02 is offline  
Old 08-22-2009, 06:25 PM
  #8  
393strokervert
1st Gear Member
Thread Starter
 
393strokervert's Avatar
 
Join Date: Jul 2009
Location: Florida
Posts: 59
Default

I did not oil the filter & I have cleaned the meter several times. the previous owner was a stangnet member & I found his account on that site & saw where he had posted about the same problems when putting a cone filter on the end of the meter. I definitely want to get rid of the C&L & I like the idea 360* sampling of the Pro-m 80 that Liquid_02 mentioned. the C&L sampling tube just doesn't make sense & I can see why it would have a hard time getting a clean reading. Thanks for the repliesb
393strokervert is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Granatelli Sales
S550 2015-2023 Mustang
22
01-20-2020 12:34 AM
5.0 kevo
5.0L (1979-1995) Mustang
6
09-03-2015 06:24 PM
cbird1177711
2005-2014 Mustangs
3
09-02-2015 08:51 PM
cbird1177711
2005-2014 Mustangs
0
09-02-2015 04:12 PM



Quick Reply: Mass Air Problems



All times are GMT -5. The time now is 07:48 PM.