Project Genisis Lo Budget 3800SC (Page 33/42)
hercimer01 JAN 18, 04:58 PM
OK, so I got the new tach.
I modded the housing so it will fit.
I put the 1Meg ohm trimmer pot in place of R14. This tach is the less desirable one because of the face so its not covered as far as I can find. The PC board is different than most covered MODs.

This is mine and how I did it.
Edit: Make sure to run the Tach Gauge Ground wire (black) to the ECM C1 pin 13 MAP ground. I ran mine to the back of the gauge and it showed over 20PSI of boost which is not correct.




Edited because i just tried it and it worked.

[This message has been edited by hercimer01 (edited 09-21-2014).]

hercimer01 JAN 18, 04:59 PM
hercimer01 JAN 18, 06:21 PM
This is the car running
I still have to wire in the Green wire to the MAP signal.



I calibrated it with the Torque App. ( there's an app for that LOL)
hercimer01 JAN 23, 01:42 AM
The needles before and after.



Testors Pactra RC78.
nosrac JAN 24, 04:26 AM

quote
Originally posted by hercimer01:


I calibrated it with the Torque App. ( there's an app for that LOL)



Can you log Fuel Trim Cell with Torque? I'm doing some tuning and can't find that PID.
hercimer01 JAN 25, 03:44 AM
I have seen the PIDS for fuel trim on Torque, I would imagine they could be logged.
hercimer01 JAN 25, 03:46 AM
This is what I came up with.
I used GIMP photo-editing freeware to edit them.

https://drive.google.com/fi...Tkk/edit?usp=sharing I printed directly from this to plain white paper.
This pic is only a Low Res JPG

Courtesy of 85GT_3800SC


This is the back-lighting. I think it looks OK printed onto white paper then with the gauge face glued on to it with a light coat of contact spray.
https://docs.google.com/fil...RHdhOFY2WmFwRTg/edit

This pic is only a Low Res JPG

Courtesy of 85GT_3800SC

These are the GIMP Files For editing If anyone wants them.
https://drive.google.com/fi...Tkk/edit?usp=sharing
https://docs.google.com/fil...RHdhOFY2WmFwRTg/edit

Gimp Free Ware.
http://www.gimp.org/

[This message has been edited by hercimer01 (edited 02-01-2014).]

hercimer01 FEB 01, 05:15 AM
I'm trying to adjust the boost gauge and it seems to be acting weird.
Maybe someone could tell me if this correct?
Here are some reference voltages.
http://www.robietherobot.com/storm/mapsensor.htm

This is with the key on, engine off.


This is with the engine at idle.
Something seems to be wacked out.



I have a ZZP tune with a 3.4 pulley. Otherwise stock.
If anyone has any ideas, please help.
hercimer01 FEB 02, 12:43 AM
Its all back together for now. I need to recalibrate the tach one last time because I redid the overlay again.
hercimer01 FEB 02, 12:46 AM

quote
Originally posted by hercimer01:

I'm trying to adjust the boost gauge and it seems to be acting weird.
Maybe someone could tell me if this correct?
Here are some reference voltages.
http://www.robietherobot.com/storm/mapsensor.htm

This is with the key on, engine off.
-------------

This is with the engine at idle.
Something seems to be wacked out.
--------------


I have a ZZP tune with a 3.4 pulley. Otherwise stock.
If anyone has any ideas, please help.


I checked my Tahoe with Torque and it reads the same at idle. Like -20PSI