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 « < 14 15 16 17 18 > »   
 Reply to this topicStart new topic
> Zach's Carbs to Microsquirt conversion thread, 7/20/18 update
McMark
post Apr 16 2015, 12:16 PM
Post #301


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

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
Certainly sounds like the harness. (IMG:style_emoticons/default/sad.gif) Most likely culprit is the pins in the connector at the ECU. Those connectors are a major PITA to assemble. I'd suspect the serial connection wires themselves first.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 16 2015, 02:06 PM
Post #302


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

Group: Admin
Posts: 13,442
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
Will find out tonight. If I can get a connection with it my plan is to take it to Tonys tomorrow and put it back in the car. Go connector by connector until it fails to try and isolate the problem.

Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Apr 16 2015, 02:24 PM
Post #303


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

Group: Members
Posts: 24,574
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
how many pins is the connector?
Have you considered buying a more rugged cable with the correct number of wires, and redo the connectors at each end to match the new wire?

Something that may be easier to assemble and more reliable??

I am watching with loads of curiosity because I am about to go down this road....

Rich
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 16 2015, 02:28 PM
Post #304


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

Group: Admin
Posts: 13,442
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
Rich it's an amp-seal connector. Stop by my room at the Inn tonight it tomorrow night, I'll have it there. It's pretty rugged, and weatherproof.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dr Evil
post Apr 16 2015, 02:45 PM
Post #305


Send me your transmission!
***************

Group: Members
Posts: 22,995
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
Can't wait.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dr Evil
post Apr 16 2015, 02:47 PM
Post #306


Send me your transmission!
***************

Group: Members
Posts: 22,995
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
Pretty sure this is your problem. Need a new hampster.


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
crash914
post Apr 16 2015, 02:57 PM
Post #307


its a mystery to me
***

Group: Members
Posts: 1,826
Joined: 17-March 03
From: Marriottsville, MD
Member No.: 434
Region Association: MidAtlantic Region
bring a gas mask...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 17 2015, 07:00 PM
Post #308


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

Group: Admin
Posts: 13,442
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
Well, not the harness.

I did find a fault in the fuse block, but that is fixed easy enough.

I connected the harness to my laptop via my little tester setup and had a connection instantly.

I am at a total loss as to what I need to do next.

Its got to be something in my car, which makes ZERO sense to me. I'm totally stumped.

Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 20 2015, 12:11 PM
Post #309


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

Group: Admin
Posts: 13,442
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
I now have full confidence in the harness.

When I did my test at Hershey I only used one ground point. It occured to me when I got sober the next day that there are 8 ground points. I married all the ground together when I got home on Sunday and retested.

ECU connected right away on the test bench.

So, its something in my car. YAY! ;-|

I dont wantto tow the car back home, but I dont see it making sense to work on it at Tony's as I have to take off work. I also dont want to pay tony to chase wires. I want to pay him to tune...

So I guess I have to tow the car home and start digging into it old school style. Which will have to be Friday, and then work on it while I still have my post Hershey 914 buzz going on.

I will admit I was pricing buying IDFs again to get the car moving under its own power. But I'm not giving up yet.

Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Apr 20 2015, 12:41 PM
Post #310


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

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
Bad relay board? Test the power supply pin. It's the one in the white connector on the right/passenger side. Make sure it's getting 12v, maybe even try jumpering it straight to the battery.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 20 2015, 01:00 PM
Post #311


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

Group: Admin
Posts: 13,442
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
Relay board is first of the things I have to check.
The fuel pump also does not turn on when the key is turned, so I think there has to be some wierdness going on there.

When I had carbs it was not much of an issue.

Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
crash914
post Apr 20 2015, 01:01 PM
Post #312


its a mystery to me
***

Group: Members
Posts: 1,826
Joined: 17-March 03
From: Marriottsville, MD
Member No.: 434
Region Association: MidAtlantic Region
Hot wire. Eliminate everything and then add back one by one. Do you need to borrow my trailer?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Apr 20 2015, 01:08 PM
Post #313


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

Group: Members
Posts: 24,574
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
Zach,

Have faith, look what Wally did....

https://www.youtube.com/watch?v=5ufjeBe0PYo
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 20 2015, 03:32 PM
Post #314


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

Group: Admin
Posts: 13,442
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
Herb, I'll just flat tow it. Thanks for the offer though!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Apr 20 2015, 04:05 PM
Post #315


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

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
Main power relay on the board may not be tripping. That would cause both issues.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
toon1
post Apr 20 2015, 04:21 PM
Post #316


Senior Member
***

Group: Members
Posts: 1,849
Joined: 29-October 05
From: tracy,ca
Member No.: 5,022
relay board fuse, could be a switching transistor on the main board also.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 20 2015, 06:34 PM
Post #317


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

Group: Admin
Posts: 13,442
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
QUOTE(toon1 @ Apr 20 2015, 05:21 PM) *

relay board fuse, could be a switching transistor on the main board also.


What do you mean?
Specifically the "switching transistor on the main board" part. Something in the cabin?

Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Apr 20 2015, 07:02 PM
Post #318


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

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
Since he's got Megasquirt I listed in his signature I suspect he's talking about the MS board. Another reason I only use MicroSquirt. (IMG:style_emoticons/default/sunglasses.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 22 2015, 07:38 PM
Post #319


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

Group: Admin
Posts: 13,442
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
Since I will be doing some rewiring, I made something big.
All the 914 wire diagrams in one wall poster.
Big one is the engine side, since that will be my main target.
Little copy of the firewall forward.
Detail of the relay board - my likely nemesis.
And the ledgend for all three charts.
Calipers are in there for scale reference. It's 48x36 inches.
Attached Image

That should help a bit.
Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 24 2015, 09:02 AM
Post #320


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

Group: Admin
Posts: 13,442
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
my 914 is back in my garage.
Work starts tonight...
Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

32 Pages V « < 14 15 16 17 18 > » 
Reply to this topicStart new topic
1 User(s) are reading this topic (1 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: 11th May 2024 - 02:00 AM
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 ...