View unanswered posts | View active topics It is currently Thu Nov 23, 2017 10:30 am



Reply to topic  [ 145 posts ]  Go to page Previous  1 ... 8, 9, 10, 11, 12, 13, 14, 15  Next
Fred's "Hotel Hyundai" 1988 Stellar! (3rd) 
Author Message
Moderator
User avatar

Joined: Tue Jan 15, 2008 2:31 pm
Posts: 14875
Location: Home sweet home!
Today's work:

Verified edge timing with new dizzy position. Spot on 10 BTDC while in dumb follow edges mode (only available on hotels for now). Good. Took a stab in the dark at 75 degrees instead of 90 degrees for decoder angle. Spot on. But wait, what's this? Decoder offset needed changing 20 degrees to be right. How this car runs at all, and survives is beyond me :-D Poor thing. Running mint now, but still has sync losses.

Tomorrow:

Review fuel pump, injectors, injector driver box, coil/ignitor feeds/grounds and redo what needs redoing.
Shorten power/ground feed to ECU and install dodgy extra capacitance because I need it working mint in the next few days, worst case.
Try a different or multiple caps on the coil damping side of things.

Interestingly I took the "IGN" fuse out of the OEM block and everything still worked :-o Presto may know why. I do not, yet.

Fred.

_________________
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Mon Aug 25, 2014 6:34 am
Profile WWW
Moderator
User avatar

Joined: Tue Jan 15, 2008 2:31 pm
Posts: 14875
Location: Home sweet home!
Didn't get that done, work area occupied, couldn't make noise, worked on software instead. Will try again tomorrow. Half-finished new feature in ULV, which will lead into some proper structure pretty soon and even more features in the process.

_________________
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Wed Aug 27, 2014 7:57 am
Profile WWW
Moderator
User avatar

Joined: Tue Jan 15, 2008 2:31 pm
Posts: 14875
Location: Home sweet home!
Today I tested the coil wiring and found it was direct from the ignition. I found this by backpowering the entire car through the coil wiring and a jumper cable to the +ve terminal on the battery. So then I replaced it with new wiring and it's very own relay direct from battery via fuse. A short test drive revealed that I haven't solved the sync loss issue by doing this, which is pretty disappointing, to say the least. Chronic losses between about 1500 and 2000 especially when tipping in. Almost never any other sync loses at higher RPM or idle. The saga continues! :-/

_________________
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Thu Aug 28, 2014 7:04 am
Profile WWW
Moderator
User avatar

Joined: Tue Jan 15, 2008 2:31 pm
Posts: 14875
Location: Home sweet home!
So, yesterday I noticed that the car kept running briefly after turning off the key. Weird. I then turned on the fan and found that, unsurprisingly, it died instantly. The ECU and engine definitely lived on, proved by timing the key off in order to observe a final CEL flash before death.

All I did was connect two coil power feed wires to the coil of a relay and a fused supply to the relay. No other changes. Weird.

I see a new car running FreeEMS in my future. I will beat this eventually, but it's getting in the way of more important things at the moment.

_________________
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Sat Aug 30, 2014 2:11 am
Profile WWW
Moderator
User avatar

Joined: Tue Jan 15, 2008 2:31 pm
Posts: 14875
Location: Home sweet home!
Poor car is on the side of the road, alone in the dark. Wish it luck.

_________________
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Fri Sep 12, 2014 10:47 am
Profile WWW
TO220 - Visibile

Joined: Fri Oct 26, 2012 1:32 pm
Posts: 8
Left alone to fend for itself?! ;)

What happened?


Fri Sep 12, 2014 5:49 pm
Profile
Moderator
User avatar

Joined: Tue Jan 15, 2008 2:31 pm
Posts: 14875
Location: Home sweet home!
Went away skiing, left wallet on the dashboard, caught a ride back with a stranger, drove halfway down, left it parked downhill, came home to find this:

https://twitter.com/FredCookeNZ/status/ ... 3751558144

Otherwise fine.

_________________
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Sun Sep 14, 2014 9:01 pm
Profile WWW
TO220 - Visibile

Joined: Fri Oct 26, 2012 1:32 pm
Posts: 8
Oh, I thought it had a mechanical or electrical breakdown, not mere abandonment issues!


Mon Sep 15, 2014 1:42 am
Profile
Moderator
User avatar

Joined: Tue Jan 15, 2008 2:31 pm
Posts: 14875
Location: Home sweet home!
It told me in Morse code (corrupt vs non-corrupt packets) that it missed me. I will try not to leave it alone like that again. Who knows what kind of mischief it might have gotten up to! :-o

_________________
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Tue Sep 16, 2014 11:34 am
Profile WWW
Moderator
User avatar

Joined: Tue Jan 15, 2008 2:31 pm
Posts: 14875
Location: Home sweet home!
As a quick follow up to the above, two weeks ago I put 800km on it in a weekend. Yesterday I put about 250km in it up north and out in the waitaks. Great fun pushing semi hard down ruthless little roads with no visibility and barely enough width for two cars. :-)

_________________
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Sat Oct 11, 2014 11:22 pm
Profile WWW
Display posts from previous:  Sort by  
Reply to topic   [ 145 posts ]  Go to page Previous  1 ... 8, 9, 10, 11, 12, 13, 14, 15  Next

Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group
Designed by ST Software for PTF. ColorizeIt.