Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

32 Pages V « < 12 13 14 15 16 > »   
 Reply to this topicStart new topic
> Zach's Carbs to Microsquirt conversion thread, 7/20/18 update
McMark
post Mar 31 2015, 03:53 PM
Post #261


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
Yeah, MSII is very different. Nice offer though. (IMG:style_emoticons/default/thumb3d.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Mar 31 2015, 04:30 PM
Post #262


En Garde!
**********

Group: Admin
Posts: 13,432
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
Mark, when I talked with Tony today they said they had tried everything you had told them about.

Mail the ECU to me if you dont mind. If I cant get mine to connect this week, I'm going to pull it and send it to you to see if it works on an otherwise known good system.

Seriously thinking of towing my car back home. as long as I'm going to be working on it again, I'd rather walk out to my garage then take days off work to work at tony's shop. Nothing against Translog, but I just dont want them burning shop hours fighting a connection. I want them burning shop hours tuning.

Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Mar 31 2015, 04:33 PM
Post #263


En Garde!
**********

Group: Admin
Posts: 13,432
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
My plan of action thus far is to do a loopback test on the ECU. This will let me know if the laptop and ECU even see each other.
Then reload the firmware onto the ECU.

I'm putting together a checklist of parts and tests to run, since I will have limited time.

Going to bring full set of tools, and multimeter, and my laptop.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 1 2015, 08:02 PM
Post #264


En Garde!
**********

Group: Admin
Posts: 13,432
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
Heading to Translog tomorrow. (thursday).
Packing up tools and I cant find my damn multimeter.
Guess I'll be stopping by the hardware store on the way there.
Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
scotty b
post Apr 1 2015, 08:07 PM
Post #265


rust free you say ?
***************

Group: Members
Posts: 16,375
Joined: 7-January 05
From: richmond, Va.
Member No.: 3,419
Region Association: None
you realize you could have shipped the car to Mark a year 3 years ago and be driving it right now don't you ? (IMG:style_emoticons/default/poke.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Apr 1 2015, 08:24 PM
Post #266


Custom Member
***************

Group: Members
Posts: 24,570
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
QUOTE(scotty b @ Apr 1 2015, 10:07 PM) *

you realize you could have shipped the car to Mark a year 3 years ago and be driving it right now don't you ? (IMG:style_emoticons/default/poke.gif)

are you thinking about shipping your car to mark to get it done? Seems like a good plan Scotty, and we are supportive of you finally making the decision.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 2 2015, 09:03 AM
Post #267


En Garde!
**********

Group: Admin
Posts: 13,432
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
Looks like the issue is a miswired factory serial cable!!!
I'm going out to find if I can buy a new minijack to DB9 cable.

On mine pin 2 is wired to pin 4. Only 2 pins used. Man I hope this is the issue!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post Apr 2 2015, 10:10 AM
Post #268


I am Tangerine Racing
*****

Group: Members
Posts: 7,919
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None
QUOTE(scotty b @ Apr 1 2015, 10:07 PM) *

you realize you could have shipped the car to Mark a year 3 years ago and be driving it right now don't you ? (IMG:style_emoticons/default/poke.gif)

(IMG:style_emoticons/default/WTF.gif)
Tangerine Racing is a whole lot closer.
I have Tunerstudio on my laptop and two customer cars at the shop running MS which we installed.
...just saying...
And no disrespect intended to McMark. (IMG:style_emoticons/default/smile.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 2 2015, 10:18 AM
Post #269


En Garde!
**********

Group: Admin
Posts: 13,432
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
QUOTE(Racer Chris @ Apr 2 2015, 11:10 AM) *

QUOTE(scotty b @ Apr 1 2015, 10:07 PM) *

you realize you could have shipped the car to Mark a year 3 years ago and be driving it right now don't you ? (IMG:style_emoticons/default/poke.gif)

(IMG:style_emoticons/default/WTF.gif)
Tangerine Racing is a whole lot closer.
I have Tunerstudio on my laptop and two customer cars at the shop running MS which we installed.
...just saying...
And no disrespect intended to McMark. (IMG:style_emoticons/default/smile.gif)

Scott is starting rumors. :-/.

Car is not leaving York. I'm going to back the serial cable in a few minutes to fix the wireing. Then will see if it will connect. IF it does the car will start tuning at Translog.

Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
scotty b
post Apr 2 2015, 11:14 AM
Post #270


rust free you say ?
***************

Group: Members
Posts: 16,375
Joined: 7-January 05
From: richmond, Va.
Member No.: 3,419
Region Association: None
QUOTE(Racer Chris @ Apr 2 2015, 08:10 AM) *

QUOTE(scotty b @ Apr 1 2015, 10:07 PM) *

you realize you could have shipped the car to Mark a year 3 years ago and be driving it right now don't you ? (IMG:style_emoticons/default/poke.gif)

(IMG:style_emoticons/default/WTF.gif)
Tangerine Racing is a whole lot closer.
I have Tunerstudio on my laptop and two customer cars at the shop running MS which we installed.
...just saying...
And no disrespect intended to McMark. (IMG:style_emoticons/default/smile.gif)

No offense intended Chris. I was just busting Sach's sack by making an exaggerated point.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
AndyB
post Apr 2 2015, 11:22 AM
Post #271


The Governor is watching me
***

Group: Members
Posts: 1,115
Joined: 10-April 10
From: Philadelphia New York
Member No.: 11,595
Region Association: North East States
QUOTE(scotty b @ Apr 1 2015, 10:07 PM) *

you realize you could have shipped the car to Mark a year 3 years ago and be driving it right now don't you ? (IMG:style_emoticons/default/poke.gif)


Or you could of sent to CFR three years ago and driven it three years ago IMHO.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post Apr 2 2015, 11:42 AM
Post #272


I am Tangerine Racing
*****

Group: Members
Posts: 7,919
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None
QUOTE(scotty b @ Apr 2 2015, 01:14 PM) *

No offense intended Chris. I was just busting Sach's sack by making an exaggerated point.

I know. I just wanted to throw in my $.02.
(IMG:style_emoticons/default/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 2 2015, 02:22 PM
Post #273


En Garde!
**********

Group: Admin
Posts: 13,432
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
Back at home again. Here is where I am at.

I hacked apart the DB9 end of the cable to "correct" the pin wiring. I have to say it in quotes as (after I hacked it up) I found other information that said it was correct the first time. But I get ahead of myself. I hacked up the cable, soldered the pins to the wires and tried to reinstall them into the DB9 head. This was not successful. The cable was never intended to be taken apart, and getting the pins back into the body resulted in mostly mangled pins. Then back to google to find information suggesting that the cable was right in the first place. *grumble*

At this point I packed up my stuff, grabbed the ECU out of my car and came home after doing a small favor for Tony by fixing a computer glitch he had on his office machine.

This was the pic that got me thinking my cable was wired wrong.
(IMG:http://www.914world.com/bbs2/uploads_offsite/www.aggsoft.com-1435-1428006152.1.gif)
In this picture the wire that should have been on Pin 2 was on Pin 4.

HOWEVER

After I hacked the cable apart I found this:
(IMG:http://www.914world.com/bbs2/uploads_offsite/www.zytrax.com-1435-1428006152.2.gif)

WTF right?! Well I found the problem. The pic up top is of a MALE serial cable, and the pic below is of the FEMALE cable. I was just using google image search, and the pictures were not labeled as male/female. I had to figure that out on my own. My cable had the female end. Which means it was likely correct in the first place and I just ruined a okay cable.

So here is my plan.
buy a female 35 pin ampseal plug, new serial cable, and the Microsquirt mini-jack connector. With this I can bench test the ECU, and hopefully bring it up. At which point we can put it back in the car and start tuning.

I tested connectivity at the harness and its good. There may be a bad connection at the fuse block - I got a fault there unless I wiggled it around.

I also got more information on the failure mode in the first place. Tony said that they had connected to the ECU for a minute or two. The dashboard came up in tunerstudio, and the ECU was auto-detected. He turned around, and when he turned back connection had been lost.

Its not outside the realm of possibility that a bad connection at the fuse panel cut power to the ECU while it was connected to the laptop, corrupting the ECU. At this point I really don't know. I'm going to build the bench test rig and go from there.

I do have a JimStim which I may be able to wire into the bench test harness. That may be more trouble then its worth though. We shall see.

Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Apr 2 2015, 02:28 PM
Post #274


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
Just left you a message Zach. Don't buy anything.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 2 2015, 05:45 PM
Post #275


En Garde!
**********

Group: Admin
Posts: 13,432
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
So right now this is my plan for the test board.
(IMG:http://www.914world.com/bbs2/uploads_offsite/farm9.staticflickr.com-1435-1428018341.1.jpg)

Please look and see if I have something glaring. Do I need to add a circuit?

I think I only need 3 circuits at this time.
1) Power
2) Coms
3) Bootloader Ground

I have a 15 volt, 1.4 amp power AC to DC power converter on hand. This will allow me to plug the test box into a wall and not have to fiddle with batteries.

The numbers inside circles are the pins to the Ampseal jack.

Boot loader will be on a switch instead of plugging and unplugging a wire, with an LED to show when it is grounding.

Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 2 2015, 07:10 PM
Post #276


En Garde!
**********

Group: Admin
Posts: 13,432
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
On a whim, as there is little else I can do right now, I just checked continuity on the ECU. I got no connection between pin 1 (power) and pins 19-23 (all ground pins).

Should I have continuity between Power and Ground pins while no power is applied to the ECU?

Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Apr 2 2015, 08:06 PM
Post #277


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
I don't know for sure, can't test till Saturday. But I'm doubtful. There shouldn't be a clean path from power to ground because that would be a dead short. It's also unlikely there are any resistor type connections from power to ground. Most of the stuff is IC and does things with the power only when it's on.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Apr 2 2015, 08:08 PM
Post #278


Custom Member
***************

Group: Members
Posts: 24,570
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
QUOTE(Vacca Rabite @ Apr 2 2015, 09:10 PM) *

On a whim, as there is little else I can do right now, I just checked continuity on the ECU. I got no connection between pin 1 (power) and pins 19-23 (all ground pins).

Should I have continuity between Power and Ground pins while no power is applied to the ECU?

Zach

no

You might want tp bend Mark Skalas ear on testing this....he may be of help...
I recall he is a hardware guy.

Rich
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 2 2015, 08:17 PM
Post #279


En Garde!
**********

Group: Admin
Posts: 13,432
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
QUOTE(McMark @ Apr 2 2015, 09:06 PM) *

I don't know for sure, can't test till Saturday. But I'm doubtful. There shouldn't be a clean path from power to ground because that would be a dead short. It's also unlikely there are any resistor type connections from power to ground. Most of the stuff is IC and does things with the power only when it's on.


QUOTE(r_towle @ Apr 2 2015, 09:06 PM) *

no

You might want tp bend Mark Skalas ear on testing this....he may be of help...
I recall he is a hardware guy.

Rich


I suspected as much. Thanks guys.
Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
okieflyr
post Apr 3 2015, 05:46 AM
Post #280


9fauxteen
***

Group: Members
Posts: 816
Joined: 9-January 05
From: Phila PA
Member No.: 3,426
Region Association: North East States
Some power converters do not produce a clean enough voltage signal that sensitive electronics require.
A dedicated power supply may be better for the job if you can get your hands on one.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

32 Pages V « < 12 13 14 15 16 > » 
Reply to this topicStart new topic
3 User(s) are reading this topic (3 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 1st May 2024 - 10:01 PM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...