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Thread: MAF Voltages (VQ Table)

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Posts: 81-90 of 98
2012-03-02 21:46:41
#81
Originally Posted by dfddfd2
What are you trying to accomplish with raising the maximum VQ table value above 0xFFFF?

Dave


not much, i hear the largest nissan maf is rated at 550 whp and I just wanted to know if you could get it to read 1000whp
2012-03-02 22:13:29
#82
All Nissan MAF sensors output 0-5V regardless of HP potential, which is related to the size (diameter) of the air flow passage through the sensor.

Dave
2012-04-17 01:32:55
#83
Originally Posted by Vadim
Hey John, I found these two VQ tables claiming to be Cobra maf's. Do they look about right?

MAF 1 - Maf 2
757 170
885 212
976 266
1122 334
1277 416
1441 512
1587 623
1761 750
1957 893
2174 1051
2402 1226
2673 1417
2959 1625
3263 1851
3583 2093
3922 2354
4278 2633
4652 2929
5043 3243
5456 3576
5886 3927
6341 4298
6817 4688
7313 5098
7836 5527
8384 5979
8852 6450
9399 6949
9947 7470
10677 8014
11316 8587
12000 9188
12700 9820
13400 10485
14300 11185
15000 11925
15800 12706
16600 13533
17500 14410
18300 15341
19400 16311
20300 17344
21500 18448
22800 19622
24300 20875
25600 22214
27300 23648
28800 25184
30390 26834
32000 28300
33600 29800
35400 31400
37000 33100
38500 34600
40400 36200
42200 37900
43800 39600
45500 41200
47400 42800
49152 44700
50790 46300
52428 48200
54067 50000
55900 51900



Can anyone confirm "maf 2" is correct for 94ish cobra
2012-11-03 17:45:46
#84
The N60 VQ values in the spreadsheet, are they for the rb20det n60 or maxima VE30E n60 maf?
I'm using the N60 maf (purple sticker) and i think the VQ values listed are for the RB20?
2012-11-06 02:54:00
#85
Originally Posted by Haulin200sx
The N60 VQ values in the spreadsheet, are they for the rb20det n60 or maxima VE30E n60 maf?
I'm using the N60 maf (purple sticker) and i think the VQ values listed are for the RB20?


Are they not the same? Generally if they are different they would be designated with a new code, like E61.
2012-11-07 23:50:57
#86
Originally Posted by Vadim
Originally Posted by Haulin200sx
The N60 VQ values in the spreadsheet, are they for the rb20det n60 or maxima VE30E n60 maf?
I'm using the N60 maf (purple sticker) and i think the VQ values listed are for the RB20?


Are they not the same? Generally if they are different they would be designated with a new code, like E61.


Vadim, last night i downloaded Nistune and the ROM PACK. Using it in trial mode I verified that the VQ table from the RB20DET(Skyline) is indeed the same as the VQ table from the J30 Maxima.

The N60 i have (purple sticker) is hand picked myself from a (J30) body style Maxima.

So it looks like the values a lot of people are using is wrong. Which are the values listed in the spreadsheet for the N60. which are 5,19........

The correct values for the N60 maf starts with 125,125,125.......

The values for the N60 maf are correct in Nismotronic

Just giving everyone a heads up
Last edited by Haulin200sx on 2012-11-07 at 23-54-21.
2012-11-08 03:13:54
#87
@Haulin200sx thanks for the heads up, I'll just a few more tunes and update it. Calum might have had it wrong or had a custom tuned one.

Keep in mind you can tune the VQ table too, it doesn't have to be static
2012-12-30 23:23:39
#88
Originally Posted by Haulin200sx
The N60 VQ values in the spreadsheet, are they for the rb20det n60 or maxima VE30E n60 maf?
I'm using the N60 maf (purple sticker) and i think the VQ values listed are for the RB20?


Doesn't matter the engine difference a "N60" MAF is an N60 MAF and will have the same curve, only a designation like N62 or whatever will then have a different curve.

I have NISSAN FAST I can show you each and everY car that uses the N60 MAF AKA 22680-16V00 for both USDM and JDM
2012-12-31 00:13:30
#89
each maf can have many many different VQ tables! this is well known

the maf used in a sr20ve/sr16ve/ pathfinder etc have the same maf but all different VQ tables.

the b13/b14 sr20de maf/sr20det mafs are all the same but have different values..
2012-12-31 02:27:04
#90
Originally Posted by Haulin200sx
each maf can have many many different VQ tables! this is well known

the maf used in a sr20ve/sr16ve/ pathfinder etc have the same maf but all different VQ tables.

the b13/b14 sr20de maf/sr20det mafs are all the same but have different values..


No...all these MAF can be purchased by the same part number

but are you rather trying to say that ECU insteads dictates the VQ map because all these listed MAF are identical and all have the same heating element hot wire configuration

USDM
B13 SR20DE ALL Years use 22680-53J00
P10 SR20DE 07/90 though 04/95 use 22680-53J00

JDM
C23 SR20DE 91/06 though 95/08 use 22680-53J00
W10 SR20DE 90/05 through 94/11 use 22680-53J00
W10 SR18DE 93/01 through 94/11 use 22680-53J00
P10 SR20DE 90/02 through 94/09 use 22680-53J00
P10 SR18DE 92/09 through 94/09 use 22680-53J00

and the list goes on and on

and I dont care if you can swap MAF elements around into a different housing if you do that and the housing is exactly the same then guess what you effectly changed the part number to that MAF.
Last edited by UNISA JECS on 2012-12-31 at 02-35-27.
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