Over riding the Mass air flow
#1
Over riding the Mass air flow
Okay, heres the run down, i got a ram air hood for a 96 302, i found the kit to make it functional, problem which is brought to my attention by manufacturer is the mass air sensor, They say their hood will not work with the sensor. First question is why. Second is does any one know how to over ride that sensor, is there a programmer i can purchase that can delete that code. Any information will help alot.
thanks
thanks
#2
Administrator
I'm pretty sure that there is a little resistor that you can buy from like radio shack for less than $5 that you tap into the wires on your MAS. They are sold all over ebay for about that price as well. I don't know how they hook in or the effects but I can't imagine that you will likely see anything but negative results.
The MAS helps control the fuel/air ratio that will always vary with air temp and air density. I don't know that I would go overriding it because one of those resistors will just make it read one flatline pattern and you will only get one fuel/air mixture.
The MAS helps control the fuel/air ratio that will always vary with air temp and air density. I don't know that I would go overriding it because one of those resistors will just make it read one flatline pattern and you will only get one fuel/air mixture.
#4
Thanks, good to know, the only reason why i was thinking of doing this was the ram air hood i was going to purchase said it didnt work with mass air flow sensors for some reason i havent heard back yet from the company so i'll wait to see what they say. but i doubt im going that route cuz i know the hood has a rain drain but i worry alittle about alot of snow which i get alot here in the north
#5
We'd do it
iTrader: (1)
The reason the sensor wouldn't work with the ram air hood is because the forced air would blow through the sensor giving it incorrect readings. The readings would be incorrect because any forced air that couldn't be forced in the throttle body would be forced back out or through any holes in the air duct, further causing bad readings.
#6
Senior Member
Run the ram air kit on the bottom of the hood. Buy the adapter kit (piece of aluminum that bolts to your maf to convert to a cone air filter) and just let the cool air from the hood blow down across the cone air filter. That way your engine can still breath fresh air instead of warm engine compartment air, but it won't be forced to screw up your mass air readings.
#7
Senior Member
And if your really worried about the winters, just swap on a block off plate instead of the screens, run the screens in the other 3 seasons. I've got one so i know they bolt on and off. I assume the one you found is the cervini's that we talked about earlier.
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#8
yeah the hood i was looking at was cervinis, so your saying that i dont have to worry about the mass air sensor, just to put a cone filter on the intake and attach their kit and it will work fine. Sounds easy enough thanks for the help
#10
Senior Member
Yeah direct it towards the cone filter, in other words, you woudn't use the lower section of the ram air system that comes with the kit, you would essentially have the filter attached to the mass air.