Thread: Calum B13 RT v2, and TunerPro Q's

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2012-07-04 01:36:42

#11

OnTheChip

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Originally Posted by Vadim

You can adjust the K value when you change out mafs. Like I had to increase my K value after installing the Z32 maf, otherwise my tuning resolution was too small because Z32 maf flows a lot more then I am running.

Just try not to touch K value too much, use Current Injector Size to adjust fuel amounts.

When changing to a larger MAF, K should be increased until the full TP load scale is used. A rule-of-thumb is to increase K by the ratio of the HP supported by the MAFs.

Dave

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2012-07-04 02:09:09

#12

Kyle

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subscribed.

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2012-07-04 02:42:38

#13

squirlz

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Originally Posted by Vadim

Originally Posted by dfddfd2

When changing to a larger MAF, K should be increased until the full TP load scale is used. A rule-of-thumb is to increase K by the ratio of the HP supported by the MAFs.

Dave

Sounds good. Thanks for all your help.

Last edited by squirlz on 2012-07-04 at 02-43-40.

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92 Infiniti G21 - 242 WHP & 182 Ft-LBs (Mustang Dyno) - NA 88mm 12.5:1 VE, N1 cams, Xcessive Intake, Q45 TB, Mazworx Header, 3" Exhaust, Nismotronic ECU on MAP and IAT.
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2012-07-06 02:36:34

#14

squirlz

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Originally Posted by Vadim

Datalogging WB is alittle tricky, NismoTronic really made it easy for me. To get it to work with TunerPro, you need to split the voltage and run it through the ECU. Until TunerPro comes out with a gadget to connect to the wideband directly that is.

If you adjust K value, or current injector size, both are variables part of a bigger equation, you mess with whole map including the two cells you touched.

Originally Posted by dfddfd2

The RTv2 analog inputs are displayed in the "RTV2 IO" item list. You can edit the ADX and display them anywhere you want, and also change the conversion equation to display the value as AFR, if you know the voltage to AFR conversion factor for your wide band. The voltage is roughly x/200.

Dave

Do the Inputs have to be enabled? When we enabled the "Enable Analog 0 Input" the car would not rev over 3K. Are the inputs in the "Data List View"? Or somewhere else?

Also do i need a voltage divider to bring it down to 0-2.5V? The schematic shows 5v supply on the OP amp so it should handle a 0-5V input correct?

Thank you.

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2012-07-08 14:01:09

#15

squirlz

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When i enabled Analog 0 input the reading went right to 255 which i assume is railed. I made a voltage divider and it still would not show anything other than 255.

I also found you can program the output of the MTX-L to go from 0-2.5v instead of 0-5v. We did not have time to test this but this should work.

Any idea on what i am doing wrong?

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92 Infiniti G21 - 242 WHP & 182 Ft-LBs (Mustang Dyno) - NA 88mm 12.5:1 VE, N1 cams, Xcessive Intake, Q45 TB, Mazworx Header, 3" Exhaust, Nismotronic ECU on MAP and IAT.
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2012-07-08 15:12:20

#16

OnTheChip

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Originally Posted by squirlz

The RTv2 analog inputs are 0-5V, so you don't need a divider. Are you sure you have the latest B13RTOpen.hex file uploaded to the RTv2 with Colt Bootloader?

Dave

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2012-07-08 19:50:58

#17

squirlz

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I think so. The ECU had the V1 firmware installed to get the car running awhile ago. Before we started messing around with it i flashed the new hex on. But, it will not load automatically, i had to pulse the MCLR low in order for the ECU to start accepting the programming.

From Calums site:

If you've uploaded a firmware that bricks your RT board…

If you've managed yo brick your board (i.e. written some code that never responds to serial commands) you've got two options- either manually reset the board while the Colt loader is trying to connect, or use a hardware programming tool like the ICD2.

To manually reset the board first remove the cover. Next, find JX as show below.

There is no Jumper that i could find, i tried resetting it with an ICD2 but it still would not load the firmware automatically. So i pulsed the MCLR line low and it went through the install. It still will not load automatically with the Colt Bootloader.

Do you think it did not take? I also can not change the RPM scale on the Fuel or Timing maps as i should be able to, it caps them at 7000.

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2012-07-08 20:36:01

#18

OnTheChip

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I really don't know about the RTv2 and have no idea how to reach Calum.

You can edit the RPM scale definitions in the XDF and increase the upper limit next to the "Use High Range" check box.

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2012-07-08 22:04:23

#19

squirlz

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Thanks, that makes things a little better.

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