Dual MAP sensors? wtf?

[robertmays]

I have a D15B7 in my 92 sedan its auto and i dont know wtf is going on, i saw in a manual that my engine is only supposed to use the one on the firewall so why do i have 2? and they are both hooked up. my car runs like crap is this why?

 

[thetunersource]

i dont think that would be why... did you check your cel or pull the code?

 

[robertmays]

i dont have any check engine lights on