I've been ignoring this issue, and I think its time to address it: MAF/MAP/TMAP/whatever wiring.
The stock intake manifold has an
ACDelco 12591290 MAP sensor (3 pin).
The supercharger had a (broken)
GM 09359409 MAP sensor (3 pin).
The intake manifold came with a
Bosch 0261230042 (T?)MAP sensor (4 pin).
Now... I'm fairly certain I have to use the Bosch sensor on the intake manifold. I've seen and heard others talk about having to jump the 4th wire, what I imagine is temperature over to something else - MAF?
@Karter2026
mentions it in a couple spots:
My temp is cut out of the MAF and wired into the TMAP on the upper left of the manifold
I found this diagram of the MAF sensor pinout:
For the Bosch TMAP I couldn't find the pinout for the exact model I have, but I found
something close:
So in theory, I just snip wire B off from the MAF and wire it to Pin 2 of my Bosch. Then I use a blockoff (or my GM MAP assuming it doesn't leak) to block off the port on the supercharger. This will also require sourcing a
female pigtail for the Bosch TMAP to wire all this in.
Does that sound right? What do you guys think? Are there any other builds that are running a supercharged 2.2L that I can look at? I only know of
@Karter2026 /
@Wackstack and
@Dsteinhorst .
Thoughts?