apexi super afc2?
#1
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apexi super afc2?
Just as the heading says, I was thinking about putting on an APEXI super afc 2 computer onto my xjr, however I don't know whether or not it will work. It's a air/fuel programmer to adjust the amount of air and fuel is going into the system. here's a link to it
http://www.howellautomotive.com/inde...amp;ProdID=340
the thing wants me to hotwire the computer into the mass airflow sensor and the ecu believe, so before I fry any circuits, I figured I'd get a second oppinion whether this will work or not.
http://www.howellautomotive.com/inde...amp;ProdID=340
the thing wants me to hotwire the computer into the mass airflow sensor and the ecu believe, so before I fry any circuits, I figured I'd get a second oppinion whether this will work or not.
#2
RE: apexi super afc2?
Actually the Hot-Wire is a reference to a type of MAF that utilizes a platinum wire that is heated a couple hundred degrees above ambient air temp. As air pass through the MAF it cools the platinum filament. The increase in current required to keep the filament at the correct temp is proportional to the "mass" of air flowing into your engine. The measure of air Mass is fed into the engine management ECU and is used to calculate air/fuel ratio. Which is a real-time effort. However there are two common types of MAF sensors, Hot-Wire and Hot-Film. I am not sure which one you have without looking it up.
The way these add-on "computers" work is to re-map the air/fuel curve according to the new parameters it provides. Basically your throwing more fuel into the engine. However, you can't increase air/fuel without consequence. I would say that you can expect to encounter problems with Ignition timing and advance unless your computer also accounts for these things. You will also introduce a different burn pattern in the combustion chamber that will most likely come from additoinal heat. You should be careful when altering engine management programming, especially if you are looking for long engine life.
Pat
The way these add-on "computers" work is to re-map the air/fuel curve according to the new parameters it provides. Basically your throwing more fuel into the engine. However, you can't increase air/fuel without consequence. I would say that you can expect to encounter problems with Ignition timing and advance unless your computer also accounts for these things. You will also introduce a different burn pattern in the combustion chamber that will most likely come from additoinal heat. You should be careful when altering engine management programming, especially if you are looking for long engine life.
Pat
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