I need help with this, im trying to install a performance module and i cant find the MAP/MAF sensor to hook the wires to...help please

 

the module is the JET v-force module, i cannot find the wire from the map/maf sensor..any input would b great thanks!

 

um those are 2 different sensors? do u want both locations or what? maf is mass air flow and the map is manifold absolute pressure im thinkin u want maf...

 

yea i know theyre two different ones, i found the mass air flow i cant find the MAP one tho

 

if my memory serves me right, you either have one or the other. not both.

 

only have one? my car has both...i cant say i know for sure but y would a car have one and not the other. one measures the air goin into the engine the other measures the pressure in the crankcase...

 

i meant was i know where the mass air flow sensor is..i dont know where the MAPsensor is because i have to run 2 wires to it

 

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Thanks Member's for your Help 2 Member: Nova1585

 

It is possible, and common. The MAF measures the amount of airflow coming in- and fuels according to that.

You could also run a setup with just a MAP- you know engine RPM, the MAP tells you pressure/vacuum in the intake manifold (which tells you how much load the engine is under), and you know the engine's volumetric efficiency at each rpm vs map point (its a table lookup that the engineers program in). So you can also fuel based on that.

I know of a lot of cars that run only a MAP sensor- most of our GM V6's run both a MAP and a MAF though (generally better for us who like to mod and can't tune).


Its not crank pressure necessarily that it is measuring- its pressure/vac in the intake manifold

 

sry should have said vacuum not pressure. i never thought of it like that...using vacuum to measure air intake instead of the other way around. i always thought of it as a value check and to test the egr... but i suppose u can always just use the vacuum measurement to calculate air flow