effect of aftermarket intakes on engines with MAP sensors

[10323015]

oiled aftermarket air intakes (simota, k&n) can be harmful to engines with MAF sensors (especially the over-oiled ones)

now my questions are:

what are the effects (both positive and negative) of aftermarket air intakes have on engines with MAP sensors?

who reacts better with the aftermarket air intakes, engines with MAF sensors or those with MAP?

thanks

[oj88]

Just FYI, most cars nowadays have both MAF and MAP.

[niky]

If it's a MAP equipped engine with a turbocharger, sometimes the ECU "adjusts" the fuel trims after you add an aftermarket intake, and there won't be a gain in power. But this differs from car to car.

[10323015]

Just FYI, most cars nowadays have both MAF and MAP.

what most cars? toyotas, hondas, mitsus et.al?

you might be pertaining to the more expensive ones: jag, porsche, mb, bmw, audi, aston martin.

from what i know kasi, cars, at least the economy ones, are only equipped with EITHER maf or map. you might be pertaining to o2 sensors (which some economy cars have in addition to the sensors)

but i might be wrong..

[oj88]

Doesn't the Toyotas, Mitsus or Nissan have them? Well, I kinda assumed that they do since I know for a fact that newer Hondas have both... and they're not what you'll call "expensive" cars either. It's an econobox like most cars we have on the streets.

If I may add, MAF measures airflow and MAP measures engine load (strong vacuum=lightly loaded; weak vacuum=heavily loaded). If the engine is designed to use only one sensor (either MAF or MAP, not both), the computer does some computations to determine the probable value of the other to make its decisions as to fuel delivery, among other things. Having both sensors on the engine supplying information, the computer will have a more complete picture of what the engine is doing.

[10323015]

Doesn't the Toyotas, Mitsus or Nissan have them? Well, I kinda assumed that they do since I know for a fact that newer Hondas have both... and they're not what you'll call "expensive" cars either. It's an econobox like most cars we have on the streets.

If I may add, MAF measures airflow and MAP measures engine load (strong vacuum=lightly loaded; weak vacuum=heavily loaded). If the engine is designed to use only one sensor (either MAF or MAP, not both), the computer does some computations to determine the probable value of the other to make its decisions as to fuel delivery, among other things. Having both sensors on the engine supplying information, the computer will have a more complete picture of what the engine is doing.

yeah some have both. honda should, the car is so darn expensive to be called an economy car now. focus also should, i mean 1.2m, come on. is another clutch that expensive? hehe

going back, assuming only ONE sensor is used, what type reacts better to tube type oiled air intake? engines with maf sensors or engines with map sensors?

thanks!