HOW TO: Wire A Q45 MAF To A B13 And Other Various Nissans - SR20 Forum
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Old 06-28-2005, 09:01 PM   #1 (permalink)
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HOW TO: Wire A Q45 MAF To A B13 And Other Various Nissans

*B15 Now Added* Someone please test to varify


This information has been taken from SR20development.com and factory FSMs to come up with this diagram.

(Q45 TO B13 Shown Below)

Q45 (VH45DE):---------------------------------------------: (SR20DE) B13
Black\White-------------------------- (12V)--------------------Orange\Blue
White----------------------- (Ground)-------------------------------White
Black------------------- (0-5V Signal Out)--------------------------Orange


Other Models
Model-------------------12V--------------0-5V Signal Out-----------Ground------------Not Used

(98-01)B15-------------White--------------Green----------------------Black-------------Red
(95-98)B14--------------White\Red--------Orange--------------------White
(89-98)240SX------------Black\White------White----------------------Black
(81-83)280ZXT-----------Yellow\Blue------Yellow\Red-----------------Black
(84-89)300ZXT-----------Black\White------Black (Shielded)-----Black (Both)
(93-97)Altima-------------Orange----- ----Orange (Shielded)---------White
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Last edited by sinistersntra91; 11-17-2005 at 11:44 PM.
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Old 07-09-2005, 07:44 PM   #2 (permalink)
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Sorry about that guys I had that all messed up but its fixed now with the correct info, enjoy.
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Old 07-10-2005, 10:01 PM   #3 (permalink)
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pardon my ignorance..but what is the advantange of the Q45 MAF over the B13?
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Old 07-10-2005, 10:09 PM   #4 (permalink)
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uh were is teh b13 info
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Old 07-10-2005, 11:56 PM   #5 (permalink)
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Quote:
Originally Posted by Sr20kidD
uh were is teh b13 info
across from the Q45 info, to the right...
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Old 07-10-2005, 11:59 PM   #6 (permalink)
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Quote:
Originally Posted by TOOQIKK
pardon my ignorance..but what is the advantange of the Q45 MAF over the B13?
Q45 is cheaper than the Z32 and supposedly bigger than the Z32. Its good for boosted cars. Works well with E-Manage.
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Old 08-06-2005, 08:33 PM   #7 (permalink)
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i dont understand the 95-98 B14 diagram
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Old 08-06-2005, 10:01 PM   #8 (permalink)
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Q45 (VH45DE):------------------------------------------: (SR20DE) 95-98 B14
Black\White-------------------------- (12V)--------------------White\Red
White----------------------- (Ground)-------------------------------White
Black------------------- (0-5V Signal Out)--------------------------Orange
anything else?

All that changes is the 12V. From Orange/blue to White/Red.
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Old 08-07-2005, 09:11 AM   #9 (permalink)
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Just asking, but how much fuel are you guys adding, with and AFC, or Emanage, when your adding these big Mafs?
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Old 08-08-2005, 08:42 AM   #10 (permalink)
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Any info on wiring to the B15 SR20? :-D
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Old 08-09-2005, 02:50 AM   #11 (permalink)
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Do the conversions for the B13 apply to S13 DET's as well?
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Old 08-10-2005, 03:17 PM   #12 (permalink)
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disregard my previous reply...im a 'tard
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Old 08-10-2005, 06:58 PM   #13 (permalink)
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Quote:
Originally Posted by 510&SE-R
Do the conversions for the B13 apply to S13 DET's as well?
I believe you can use the same diagram as the 89-98 240sx I have listed above but i could be wrong.
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Old 08-10-2005, 07:02 PM   #14 (permalink)
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Originally Posted by awal
Just asking, but how much fuel are you guys adding, with and AFC, or Emanage, when your adding these big Mafs?
Im using 50# MSDs with my Q45 MAF, with E-manage all you have to do is tell it what injectors you are using and the MAF you are using and it does all the factoring by itself.
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Old 08-10-2005, 07:27 PM   #15 (permalink)
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Quote:
Originally Posted by KnightBird
Any info on wiring to the B15 SR20? :-D

Not yet working on it ***.
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Old 09-20-2005, 11:29 AM   #16 (permalink)
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What about SAFC settings when using the Q maf? Anyone try that?
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Old 09-20-2005, 12:06 PM   #17 (permalink)
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Quote:
Originally Posted by sinistersntra91
Not yet working on it ***.

Anything yet?? I'm still aquiring pieces, but i hav emy Greddy Emanage finally!

I'm targeting spring for PSSSHHHHHTTTTTT!!!
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Old 11-09-2005, 01:06 PM   #18 (permalink)
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I was told that on a stock sr20de a q45 or z32 maf will net 1-2 whp......is that true?
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Old 11-17-2005, 01:49 PM   #19 (permalink)
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not sure about that sorry havent been able to finish investigating the wiring on the B15, just started back at college, working on it ***....
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Old 11-17-2005, 11:37 PM   #20 (permalink)
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Here is what I have come to conclude for the B15, It should work according to the FSM:

Q45 (VH45DE):------------------------------------------------------: (SR20DE) B15
Black\White----------------------------(12V)-----------------------------------White
White-------------------------------- (Ground)----------------------------------Black
Black-----------------------------(0-5V Signal Out)----------------------------Green
Not Used--------------------------------(5V)---------------------------------------Red

*Someone please test to varify......

Last edited by sinistersntra91; 11-17-2005 at 11:45 PM.
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