The Forestry Forum is sponsored in part by:

iDRY Vacuum Kilns


Forestry Forum
Sponsored by:


TimberKing Sawmills



Toll Free 1-800-582-0470

LogRite Tools



Norwood Industries Inc.




Your source for Portable Sawmills, Edgers, Resaws, Sharpeners, Setters, Bandsaw Blades and Sawmill Parts

EZ Boardwalk Sawmills. More Saw For Less Money!

STIHLDealers.com sponsored by Northeast STIHL


Woodland Sawmills

Peterson Swingmills

 KASCO SharpTech WoodMaxx Blades

Turbosawmill

Sawmill Exchange

Michigan Firewood, your BRUTE FORCE Authorized Dealer

FARMA


Baker Products

ECHO-Bearcat

iDRY Wood Lumber Vacuum Drying for everyon

Nyle Kiln Dry Systems

Tally-I/O




Author Topic: Woodmizer LT40 28 Kohler how to reset ECU  (Read 606 times)

0 Members and 1 Guest are viewing this topic.

Offline jovol

  • member
  • *
  • Posts: 21
  • Age: 28
  • Location: Lake Lure, NC
  • Gender: Male
  • I'm new!
    • Share Post
Woodmizer LT40 28 Kohler how to reset ECU
« on: February 09, 2019, 12:43:10 PM »
I replaced the O2 sensor on my 28HP Kohler Command, and I started adjusting the idle RPM since they were very low. Now, the engine RPMS oscillate over a period of like 10-15 seconds. I think I need to reset the ECU and do the "TPS learn procedure". The Kohler service manual has directions on shorting two wires together, turning the key on-off for 10 sec, and that should reset the ECU, but the wiring diagrams don't match up to my Bosch ECU, so I don't know which wires to short together. Anyone successfully done this before? 

Thanks, John
2017 LT50 wide, 2004 LT40 G28 (for sale), ms250, ms661 42” granberg, Logrite fetching arch, 2000 New Holland LS180, Ford 6.0s

Offline Ben Cut-wright

  • Full Member
  • **
  • Posts: 86
  • Location: Northwest Arkansas
  • Gender: Male
  • I'm new here! I'm old everywhere else
    • Share Post
Re: Woodmizer LT40 28 Kohler how to reset ECU
« Reply #1 on: February 10, 2019, 10:18:22 PM »
Not sure what you mean by "wiring diagrams don't match up"?  Why did you replace the O2 sensor?

These instructions are in the manual for that engine.

Reset:

1.  Connect (jumper) white wire to black wire in four way diagnostic port.
2. Turn key on, then off for ten seconds.
3. Turn key on, then off for ten seconds a second time.

TPS learn:

1. Turn idle screw clockwise one full turn prior to key ON after ECU Reset.

2. Start engine, run at low idle until engine is warm.

3. Idle speed must be above 1500 RPM. If below 1500 RPM, turn idle screw up to 1700 RPM and then shut down engine and perform ECU Reset again.

4. Adjust idle speed down to 1500 RPM. Allow engine to dwell at 1500 RPM for about 3 seconds.

5. After this, adjust idle speed to final specified speed setting.

6. Turn key OFF for 10 seconds.

Offline MartyParsons

  • Senior Member x2
  • *****
  • Posts: 1859
  • Age: 55
  • Location: Shade Gap, Pennsylvania
  • Gender: Male
  • Wood-Mizer Service and sales PA, VA, MD, WV others
    • Share Post
Re: Woodmizer LT40 28 Kohler how to reset ECU
« Reply #2 on: February 11, 2019, 05:12:55 PM »
I was going to look this up and take it out of the book. Ben has it done. 
Thanks
Marty

I would check the TPS and the throttle plates make sure the screws on the plates are not loose. 

“A pessimist sees difficulty in every opportunity; an optimist sees opportunity in every difficulty.” -Winston Churchill


Share via delicious Share via digg Share via facebook Share via linkedin Share via pinterest Share via reddit Share via stumble Share via tumblr Share via twitter

xx
Broken Crankshaft on Kohler 25 HP on LT40 HYD

Started by DR_Buck on Sawmills and Milling

34 Replies
2441 Views
Last post June 14, 2017, 11:08:06 PM
by Gary_C
xx
Guess I will settle for a 25 HP Kohler to repower my 92 LT40 HD

Started by RayMO on Sawmills and Milling

16 Replies
2552 Views
Last post October 07, 2013, 06:35:32 PM
by RayMO
xx
Kohler on a Woodmizer.

Started by DJL50 on Sawmills and Milling

28 Replies
10777 Views
Last post February 28, 2009, 07:06:59 PM
by MartyParsons
xx
Woodmizer Kohler Command 25 Governor/Throttle Spring Configuration

Started by Pepe_Silvia on Sawmills and Milling

4 Replies
222 Views
Last post November 15, 2019, 03:24:50 PM
by booman
 


Powered by EzPortal