1994 Ext 580 Efi - Snowmobile Forum: Your #1 Snowmobile Forum
http://www.snowmobileforum.com
Go Back   Snowmobile Forum: Your #1 Snowmobile Forum > Specific Snowmobile Forums > Arctic Cat Snowmobiles


» Sponsors





Reply
 
LinkBack Thread Tools Display Modes
Old 10-26-2006, 09:44 PM   #1 (permalink)
Registered User
 
Join Date: Oct 2006
Posts: 7
Question 1994 Ext 580 Efi

I just bought the above sled and now I've got no spark...battery, brown and blue relays test good, but fuel pump doesnt come on either...I'm starting to think it might be a bad ecu...any suggestions on where to begin?...
snortweasel is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 10-26-2006, 11:47 PM   #2 (permalink)
Super Moderator
 
BC_Dan's Avatar
 
Join Date: Jan 2004
Location: oregon
Posts: 12,667
on the front of the ecu there should be a tiny LED light that comes on with the ignition; next time you turn it on, look at the light; it will flash error codes if there is a problem... count the flashes and pauses and that may help guide you...
__________________
2007 Dragon RMK 700 155", 2008 RMK 600 155", 95 Prowler 550 2-up, Really OLD AC Cheetah

http://www.avalanche.org/accidents.php
BC_Dan is offline   Reply With Quote
Old 10-27-2006, 07:21 AM   #3 (permalink)
Registered User
 
Join Date: Oct 2006
Posts: 7
THANK YOU for your prompt reply! The LED on the ECU doesnt appear to flash at all?! Any idea if these ECU's be bench tested or repaired?
snortweasel is offline   Reply With Quote
Old 10-27-2006, 09:36 AM   #4 (permalink)
Super Moderator
 
BC_Dan's Avatar
 
Join Date: Jan 2004
Location: oregon
Posts: 12,667
hmm.. if the ecu is toast, you need to replace it. The ECU on my 95 is protected by a 3 amp fuse located in the fuse box just above the ECU, check that first. Then check all switches (ignition, Throttle Monitor, Emergency Shut-off, and Tether). The current passes through the fuse, then through the switches, then to the ECU. There are ECUs for sale from time to time on ebay, if not they are VERY expensive from AC. When you are looking for a new ECU, it has to have the same color dot on the EPROM chip as the injectors; in 95, there were red, yellow, and blue. Good luck!
__________________
2007 Dragon RMK 700 155", 2008 RMK 600 155", 95 Prowler 550 2-up, Really OLD AC Cheetah

http://www.avalanche.org/accidents.php
BC_Dan is offline   Reply With Quote
Old 10-27-2006, 03:15 PM   #5 (permalink)
www.cnystunter.com
 
CRAZY's Avatar
 
Join Date: Oct 2006
Location: syracuse
Posts: 24
fuel injection sleds seem to always have a hard time keeping the batterys charged... convert it to carbs! thats what i did
__________________
94 artic cat wildcat 700 efi

www.cnystunter.com
CRAZY is offline   Reply With Quote
Old 10-27-2006, 08:54 PM   #6 (permalink)
Super Moderator
 
BC_Dan's Avatar
 
Join Date: Jan 2004
Location: oregon
Posts: 12,667
The battery-type EFI does require a good battery, fully charged, to run dependably. But you NEVER have to mess with the jets And that "2-pulls and it's running" is kind of nice as well...
__________________
2007 Dragon RMK 700 155", 2008 RMK 600 155", 95 Prowler 550 2-up, Really OLD AC Cheetah

http://www.avalanche.org/accidents.php
BC_Dan is offline   Reply With Quote
Old 10-29-2006, 03:29 AM   #7 (permalink)
Super Moderator
 
RJ Gleason's Avatar
 
Join Date: Feb 2005
Location: Groton NY
Posts: 32,454
First make sure that the battery is good. It can go dead from just sitting over the summer if you do not have a battery tender or charge it occasionally.
You can ignore Crazy on the "can't keep the battery charged" coment. If ther is a problem charging the battery, it is usually one of two things; bad regulator or a blown fuse from the engine to the regulator. (speaking from experience here)
__________________
Old Cat Rider
'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

'90 Wildcat Project in progress.

Vintage (sorta)
1980 Indy Trail 440 (for sale)
1980 AC Pantera (donor engine to the 90 wildcat)


http://www.dcdrifters.net/


Worshipful Master; F&AM Dryden Lodge# 472
http://www.masonicdryden472.org/

Rules of this forum are strictly enforced!
RJ Gleason is offline   Reply With Quote
Old 01-23-2009, 07:13 PM   #8 (permalink)
don't look for stupid.
 
Join Date: Nov 2008
Location: michigan
Posts: 5
580 ext efi.

im thinking of converting this sled to carbs, anybody know what carbs i would use to replace the injectors?..it is a great running sled........when it runs.what wires i would keep, and what part of the eletrical system i could eliminate??
thanks
jhcooklin is offline   Reply With Quote
Old 11-02-2011, 09:06 PM   #9 (permalink)
Registered User
 
Join Date: Nov 2011
Posts: 7
the fuel pump in my 1994 ext 580 efi keeps running when the key and kill switch is off any ideas?
94ext580 is offline   Reply With Quote
Old 11-02-2011, 09:29 PM   #10 (permalink)
Super Moderator
 
kccats's Avatar
 
Join Date: Dec 2006
Location: Northern IL
Posts: 19,981
It is likely just a simple fuse! NEVER go back to carbs! The pumprunning is likely a stuck relay or ign switch!
kccats is offline   Reply With Quote
Old 11-02-2011, 10:55 PM   #11 (permalink)
Super Moderator
 
RJ Gleason's Avatar
 
Join Date: Feb 2005
Location: Groton NY
Posts: 32,454
Check the small red wire that attaches to the battery from the regulator, there is an inline fuse ore a fuseable link that can be replaced.
__________________
Old Cat Rider
'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

'90 Wildcat Project in progress.

Vintage (sorta)
1980 Indy Trail 440 (for sale)
1980 AC Pantera (donor engine to the 90 wildcat)


http://www.dcdrifters.net/


Worshipful Master; F&AM Dryden Lodge# 472
http://www.masonicdryden472.org/

Rules of this forum are strictly enforced!
RJ Gleason is offline   Reply With Quote
Old 11-03-2011, 07:47 AM   #12 (permalink)
Super Moderator
 
kccats's Avatar
 
Join Date: Dec 2006
Location: Northern IL
Posts: 19,981
Could be a 5 amp fuse above the ecu?
kccats is offline   Reply With Quote
Old 11-03-2011, 08:43 PM   #13 (permalink)
Registered User
 
Join Date: Nov 2011
Posts: 7
i checked the fuse and replaced it and it worked thanks guy but another question im not getting any spark now and when i turn the kill switch off i all of a sudden have park also i replace the engine on it same year but it was carbureted would that have anything to do with it??/
94ext580 is offline   Reply With Quote
Old 11-04-2011, 07:40 AM   #14 (permalink)
Super Moderator
 
RJ Gleason's Avatar
 
Join Date: Feb 2005
Location: Groton NY
Posts: 32,454
You may have a bad switch.
At least you know it will run now, I would replace that switch.
__________________
Old Cat Rider
'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

'90 Wildcat Project in progress.

Vintage (sorta)
1980 Indy Trail 440 (for sale)
1980 AC Pantera (donor engine to the 90 wildcat)


http://www.dcdrifters.net/


Worshipful Master; F&AM Dryden Lodge# 472
http://www.masonicdryden472.org/

Rules of this forum are strictly enforced!
RJ Gleason is offline   Reply With Quote
Old 11-04-2011, 08:14 AM   #15 (permalink)
Super Moderator
 
kccats's Avatar
 
Join Date: Dec 2006
Location: Northern IL
Posts: 19,981
Did you use the stator and flywheel off of the EFI? THEY ARE DIFFERENT!
kccats is offline   Reply With Quote
Old 11-10-2011, 09:33 PM   #16 (permalink)
Registered User
 
Join Date: Nov 2011
Posts: 7
got that sorted had to use stator off of efi engine but now had it running and was adjusting to oil pump settings and now the fuel pump doesnt run when i turn the key but when i unplug the wire connectors and then plug then in it works for a bit even when the key and kill switch are off but a minute before that happened everything was working correctly just running a bit rich
94ext580 is offline   Reply With Quote
Old 11-11-2011, 08:55 AM   #17 (permalink)
Super Moderator
 
kccats's Avatar
 
Join Date: Dec 2006
Location: Northern IL
Posts: 19,981
FLYWHEEL? The EFI has 6 magnets the carb only 4!
kccats is offline   Reply With Quote
Old 11-11-2011, 12:05 PM   #18 (permalink)
Registered User
 
Join Date: Nov 2011
Posts: 7
yeah i changed the fly wheel when the stator was replaced... do u think it could possibly be the ignition switch?
94ext580 is offline   Reply With Quote
Old 11-11-2011, 12:45 PM   #19 (permalink)
Registered User
 
93Wildcat700's Avatar
 
Join Date: Jan 2011
Location: Holiday Hills,IL
Posts: 864
What did you do for wiring harness?. EFI and carbed are usually different from the stator on.

What i would do now is go through the TSS and start bypassing things to eliminate the Key switch and all of that. Sounds like a bad wiring issue.

You should be able to make a jumper and Systematically eliminate every component. Go into the sticky section at the top Blaine1 has a great video on this.

It seems that you used all the correct EFI parts so the compatibility should work. The only thing compatible with carbs is the lower case, crank, rods, pistons and heads. most every other part is different between the 2. I cant believe you swapped that whole motor Good for you! keep at it

x2 NEVER go back to carbs! its even harder than just figuring your efi issues out.
93Wildcat700 is offline   Reply With Quote
Old 11-11-2011, 09:42 PM   #20 (permalink)
Registered User
 
Join Date: Nov 2011
Posts: 7
well i had an efi sled and ceased the engine and found a complete sled bad condition for 200 bucks so bought it and swap just the engine over to my efi sled same where and everything it was weird though the pump works when i disconnect the battry then reconnect it it works right then with the key and kill switch off but then it wont work after that

it wouldnt have been done if it wasnt for the advice and tip i got from everyone on here wish people were closer so they could see what the machine was doing in person instead of through words
94ext580 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 08:50 AM.



Copyright SnowmobileForum.com

Search Engine Friendly URLs by vBSEO 3.6.0