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 Making a Q45 TB work on an S2 RB25DET
Author Post
streeteg

Online

365 posts

hamilton nj
3-31-2007

  Making a Q45 TB work on an S2 RB25DET


Ok, so the most frustrating part of the build so far has been trying to find a TPS sensor for my car. I have an S2 RB25det which was bone stock from the get go with the exception of exhaust that I am not in the process of upgrading with minor bolt ons before the winter. As I did the Greddy Intake manifold, I replaced the throttle body with a Q45 unit that has been the most annoying thing on the planet trying to get to work.

Heres why:








So long story short none of them fit and I have no idea how to hardwire it or which one to use if I were to hardwire it.

eh?



Offline

1732 posts

1-24-2004

 « 


(Q45 TPS) to harness

(Red) to yellow/black
(white) to red/blue
(black) to black/blue

Just splice and be done wit it. IF you want set the key to on and verify 5 volts at yellow/black wire.



RB wiring diagrams
537whp /404wtq 22psi
HOMEMADE240SXTURBO



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235 posts
1989 NISSAN 240SX KA24E
Newnan ga
9-3-2006

 « 


nice




streeteg

Online

365 posts

hamilton nj
3-31-2007

 « Re: (HOMEMADE240SXTURBO)


Quote, originally posted by eh? »
(Q45 TPS) to harness

(Red) to yellow/black
(white) to red/blue
(black) to black/blue

Just splice and be done wit it. IF you want set the key to on and verify 5 volts at yellow/black wire.

YOU ARE THE MAN. GOD I searched for years for that ****. Thank you.

Darius



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3924 posts

Iowa
3-2-2003

 « Re: (streeteg)


yeah - eh? is the man.





bauchrb

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35 posts
s13 w/ RB25 Gt4094r 640cc inj. AEM EMS
BS MO
5-23-2007

 « Re: (eh?)


alright, So I read 5 volts on both red and white wires. I've grounded the signal wire somewhere I'm guessing. It's throwing my PFC for a loop, it shuts down every time I rev past half throttle. Anyone else had something like this happen. I'm gonna trace the wires tonight, if I can to see where I might have blundered...
2lua

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56 posts

Far east nc
1-19-2005

 « Re: (eh?)


is it suspose to be .45volt to .5 volt??? eh?
eh?



Offline

1732 posts

1-24-2004

 « 


yes .4v to .5v
 

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