mass air flow
06-15-2008, 02:04 PM
#1
Registered User
Thread Starter
Join Date: Nov 2006
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
mass air flow
i have a 86 22rte pickip and is it true that you can take the plastic top off of your mass air flow and richen or lean it by messin wit some gears or wat????
06-15-2008, 02:47 PM
#2
Registered User
yikes...
Note, the 22RTE may have a turbo specific AFM. The AFM is very expensive.
Many people have destroyed theirs by messing with it.
Yes, you can adjust mixture.
Note, the 22RTE may have a turbo specific AFM. The AFM is very expensive.
Many people have destroyed theirs by messing with it.
Yes, you can adjust mixture.
06-15-2008, 07:17 PM
#5
Registered User
Join Date: Apr 2008
Location: SOnoma
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
You'll actually be adjusting the Air Flow Meter(AFM).
Air deflects a flap in an enclosed space. More air coming in = more deflection of the flap. something is connected to the flap
, and as the flap moves an electrical signal that is sent to the ECU.
Anyway you can adjust it to make it run leaner, the AFM is fitted with a flat-wound spring that applys tension to the flap. This spring is adjusted with a plastic gear and a wire holder. When this gear is tightened (turned clockwise) relative to the flat wound spring inside of it, it becomes harder for the door to open, and this translates to a leaner mixture (more air needs to flow in to move the door by a given amount, maaning that the mixture is leaner relative to its starting point before adjustment). Turning the gear counter-clockwise has just the opposite effect, as the looser gear lets more air in relative to "stock".
Turning the gear CLOCKWISE LEANS OUT THE MIXTURE.
Turning the gear COUNTER-CLOCKWISE RICHENS THE MIXTURE
Each tooth of the gear is equal to ABOUT a 2% change in the transient mixture
Dunno where I got this info but it was saved randomly in notepad as "need"
Also id probably mark the stock postion of the gear so not to lose track of your adjustments
Air deflects a flap in an enclosed space. More air coming in = more deflection of the flap. something is connected to the flap
, and as the flap moves an electrical signal that is sent to the ECU.Anyway you can adjust it to make it run leaner, the AFM is fitted with a flat-wound spring that applys tension to the flap. This spring is adjusted with a plastic gear and a wire holder. When this gear is tightened (turned clockwise) relative to the flat wound spring inside of it, it becomes harder for the door to open, and this translates to a leaner mixture (more air needs to flow in to move the door by a given amount, maaning that the mixture is leaner relative to its starting point before adjustment). Turning the gear counter-clockwise has just the opposite effect, as the looser gear lets more air in relative to "stock".
Turning the gear CLOCKWISE LEANS OUT THE MIXTURE.
Turning the gear COUNTER-CLOCKWISE RICHENS THE MIXTURE
Each tooth of the gear is equal to ABOUT a 2% change in the transient mixture
Dunno where I got this info but it was saved randomly in notepad as "need"
Also id probably mark the stock postion of the gear so not to lose track of your adjustments
Last edited by 4ランナー; 06-15-2008 at 07:23 PM.
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
