Whwre to connect wire for A/f guage and shift light

UHATEIT

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2008 Mazdaspeed3 Sunlight Silver
I bought a shift light and am having trouble finding a wire to connect the green to (which is supposed to go to a coil I believe) any suggestions???
 
Last edited:
SCRATCH the A/F wire I found that now!


Still looking for what wire to tap into for the shift light

A new thing I am also wondering... I have followed everyone's "how to install boost guage" and I tapped into the vaccuum line that goes to the top of the bov, but all it measures for me is VACUUM it doesn't register BOOST psi. Is there a different line to tap into?
 
are you getting this reading of vacuum while driving or sitting at idle? idle will be vacuum and boost wont happen until you give it some gas/drive and get above ~3k RPM
 

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