Air Flow Meter Adjustment
Δημοσιεύτηκε: Παρ 27 Ιαν 2017 8:47 pm
Adjusting the AFM is a piece of cake. This is what it looks like when the en-
gine is stopped: When the engine is running the wiper moves to the left (idle position) and
this allow the fuel pump contact on the right to close: Adjustment is simply a matter is undoing the wiper screw and rotating the
wiper slightly. The only hard part is keeping the wiper from moving while you
retighten the screw. This is less of a problem if you can't detect small
changes in the mixture. When you are done, drop some silicone or a drop of
purple loctite where the screw meets the slot underneath.
Before adjustment center the bypass screw so you have more adjustment
options later. Maybe 1/4 open would be better as these engine tend to run
rich.
You can also adjust the gear under the wiper but only if your mixture is way
way way off but it's a last resort adjustment.
gine is stopped: When the engine is running the wiper moves to the left (idle position) and
this allow the fuel pump contact on the right to close: Adjustment is simply a matter is undoing the wiper screw and rotating the
wiper slightly. The only hard part is keeping the wiper from moving while you
retighten the screw. This is less of a problem if you can't detect small
changes in the mixture. When you are done, drop some silicone or a drop of
purple loctite where the screw meets the slot underneath.
Before adjustment center the bypass screw so you have more adjustment
options later. Maybe 1/4 open would be better as these engine tend to run
rich.
You can also adjust the gear under the wiper but only if your mixture is way
way way off but it's a last resort adjustment.