Go Back   EcoModder Forum > EcoModding > Instrumentation > OpenGauge / MPGuino FE computer
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 06-14-2016, 02:17 PM   #11 (permalink)
EcoModding Lurker
 
Join Date: Jun 2010
Location: denmark
Posts: 14
Thanks: 1
Thanked 3 Times in 3 Posts
Quote:
Originally Posted by t vago View Post
The resistor golden strip can point to either pin - it does not matter with resistors.



This drawing looks correct. It should solve your problem.



That's a little strange, but as long as your MPGuino works otherwise, it doesn't matter.
Ah okay , thought i was told once that it mattered, maybe that is diodes instead.

Awesome, should be no problem building and installing, already ordered the parts. Signal would be divided by 4, right?

Sometimes i have wondered if mine is some "fake" cheapo copy. But i got it from here, also well known maker i think. But maybe not the official-official MPGuino trip computer - MPGuino



-------
Hopefully soon i will have happy conclusion to thread , miss having the MPGuino.

And the neat little panel I made can finally replace the ashtray as i intended.

(From 2-3 years ago)





  Reply With Quote
The Following User Says Thank You to mirkwood For This Useful Post:
t vago (06-14-2016)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 06-16-2016, 02:25 PM   #12 (permalink)
EcoModding Lurker
 
Join Date: Jun 2010
Location: denmark
Posts: 14
Thanks: 1
Thanked 3 Times in 3 Posts
Quote:
Originally Posted by t vago View Post
You could get yourself a 4013 dual D flip-flop CMOS chip. It's a fairly basic piece of 1970s technology
Thanks again, it works now! , finally solved.

The soldering was a bit more tricky than I thought it would be, so tiny, and points so close, but it seems to work at exactly 6500 VSS now, tho still needs some calibration.




Here are the results, I think both times i drove 40km/h.

  Reply With Quote
The Following User Says Thank You to mirkwood For This Useful Post:
t vago (06-16-2016)
Old 01-03-2017, 10:34 PM   #13 (permalink)
halos.com
 
Join Date: Oct 2009
Location: Oklahoma City, OK
Posts: 521

ECONORAM - '07 Dodge RAM 1500 QC SLT flex-fuel
90 day: 18.16 mpg (US)

the Avenger - '08 Dodge Avenger SXT
90 day: 27.06 mpg (US)
Thanks: 382
Thanked 92 Times in 78 Posts
Send a message via Yahoo to ECONORAM
Quote:
Originally Posted by mirkwood View Post
Hi

This is not the first time i try to solve this.. had given up, but now saw the MPGuino in the drawer again..

In my first car, a Alfa romeo 155 it worked flawless. Now in my Alfa romeo 75 I cant get a good VSS signal?.

Up until 20-40km/h MPGuino actually shows the speed, but then goes the oppesit way down to Zero beyond that speed??.
I had this problem with my home built VSS. I have a corroplast disc clamped to my driveshaft, with an LED and an IR photosensor reading light pulses through slots in the disc. However, with 4 slots in the disc my MPGuino would do what you described, starting at 35 mph. I covered 2 slots and it worked until 75mph. I only run one slot now, as some highways have an 85mph speed limit. Just need to get a reliable IR sensor installed...

[edit] nice looking panel enclosure!
__________________
  Reply With Quote
Old 01-04-2017, 09:41 AM   #14 (permalink)
MPGuino Supporter
 
t vago's Avatar
 
Join Date: Oct 2010
Location: Cedar Rapids, IA
Posts: 1,756

The Karen-Mobile - '05 Dodge Magnum SXT
Team Dodge
90 day: 26.86 mpg (US)

Fiat Dakota - '00 Dodge Dakota SLT RWD Quad Cab
90 day: 16.67 mpg (US)

The Red Sled - '01 Dodge Durango SLT 4WD
90 day: 16.96 mpg (US)
Thanks: 795
Thanked 677 Times in 435 Posts
I made some more modifications to my version of the MPGuino code, and it now easily handles higher frequency VSS signals. An Ecomodder in London is using his ABS wheel speed sensor for his VSS, his pulses per mile setting is near 100000, and he reports no problems with the VSS readings.
__________________
The Fiat Dakota


The Karen-mobile


The Red Sled
  Reply With Quote
The Following User Says Thank You to t vago For This Useful Post:
ECONORAM (01-09-2017)
Old 02-18-2017, 01:21 PM   #15 (permalink)
halos.com
 
Join Date: Oct 2009
Location: Oklahoma City, OK
Posts: 521

ECONORAM - '07 Dodge RAM 1500 QC SLT flex-fuel
90 day: 18.16 mpg (US)

the Avenger - '08 Dodge Avenger SXT
90 day: 27.06 mpg (US)
Thanks: 382
Thanked 92 Times in 78 Posts
Send a message via Yahoo to ECONORAM
So, as an end user of an MPGuino, am I able to load your updated code myself tvago, or do I need some sort of gizmo to help me do that? Or do I just buy a new preloaded chip? Mine is a meelis version...
[edit] will your new code read signals from the ABS or something like the Dodge output speed sensor? The OSS has about 33,000 counts/mile. I couldn't get that to work with my first MPGuino. Don't know if that's because it was a 5v signal, or because it was above the VSS limit...
__________________

Last edited by ECONORAM; 02-18-2017 at 01:44 PM..
  Reply With Quote
Old 02-22-2017, 01:23 PM   #16 (permalink)
MPGuino Supporter
 
t vago's Avatar
 
Join Date: Oct 2010
Location: Cedar Rapids, IA
Posts: 1,756

The Karen-Mobile - '05 Dodge Magnum SXT
Team Dodge
90 day: 26.86 mpg (US)

Fiat Dakota - '00 Dodge Dakota SLT RWD Quad Cab
90 day: 16.67 mpg (US)

The Red Sled - '01 Dodge Durango SLT 4WD
90 day: 16.96 mpg (US)
Thanks: 795
Thanked 677 Times in 435 Posts
Quote:
Originally Posted by ECONORAM View Post
So, as an end user of an MPGuino, am I able to load your updated code myself tvago, or do I need some sort of gizmo to help me do that? Or do I just buy a new preloaded chip? Mine is a meelis version...
[edit] will your new code read signals from the ABS or something like the Dodge output speed sensor? The OSS has about 33,000 counts/mile. I couldn't get that to work with my first MPGuino. Don't know if that's because it was a 5v signal, or because it was above the VSS limit...
The original MPGuino code appears to have a upper speed limit that is due to the amount of time required to transfer all of the raw speed/injector data from the raw measurement trip variable to the instant trip variable. While small, this amount of time was large enough to interfere with intercepting VSS pulses as they occurred. My code bypasses that rather easily. There's a member in London (whom I haven't heard back from in a while, though) who is using his ABS speed sensor with MPGuino, with something like 100K pulses/mile, and he's reported that my code works well for him.

My code should read from your ABS speed sensor. I am going to install an MPGuino into both my Dakota and my Durango, later on this year, to replace the overhead trip computer that I never really liked all that much. I was considering using the VSS output signal from the ABS CAB module, but reading directly off the output speed sensor, on the rear end, might be more accurate.

As for your inquiry? I could send you a replacement chip with my code programmed into it. PM me if you're interested.

__________________
The Fiat Dakota


The Karen-mobile


The Red Sled
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com