Mike "Wuzzy121". Rest in peace, brother

Go Back   Tacoma World Forums > Tacoma Garage > Technical Chat

Notices

How to swap ECU/ECM

Reply
 
Thread Tools Search this Thread
Old 01-13-2013, 09:36 PM   #1
Blueback00 [OP] Blueback00 is offline
Junior Member
Blueback00 is on a distinguished road
Navy:
Name: Mathias
Joined: Oct 2012, #88649
Location: Knoxville, Tn
Gender: Male
Posts: 11
Blueback00's Tacoma Gallery
How to swap ECU/ECM

Just got done doing a full rebuild. Along the way the computer fried. I've got a replacement computer from another taco and am getting ready to install it. Any tips?

'98 4x4 Tacoma regular cab 2.7L 3rz-fe with AT

Computer part # 89661-04381
  Reply With Quote
Old 01-15-2013, 08:00 AM   #2
ASE Master Tech
BamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shed
 
BamaToy1997's Avatar
Marines: M1A2 hull/turret technician, 4th Maint Btn. 4th FSSG.
Name: Bill
Joined: Jan 2012, #71846
Location: Navarre, FL
Age: 46
Gender: Male
Posts: 8,698
BamaToy1997's Tacoma Gallery
The one thing you need to be sure of is that the computer from the donor truck is identical. Both trucks need to have the same engine and transmission if you want it to be a plug and play type. Even then you might find a few issues. Good luck and let us know what happens.
  Reply With Quote
Old 01-16-2013, 04:46 AM   #3
Blueback00 [OP] Blueback00 is offline
Junior Member
Blueback00 is on a distinguished road
Navy:
Name: Mathias
Joined: Oct 2012, #88649
Location: Knoxville, Tn
Gender: Male
Posts: 11
Blueback00's Tacoma Gallery
I've got the same computers

Hey BamaToy, thanks for your responses and help on my last thread.

To bring you up to speed: Did a full rebuild, now my engine cranks beautifully but gets no spark.

As of right now I have two of the same computers pulled from mechanically identical trucks. I did the swap following the procedure outlined in the 1996 FSM (My truck is a 98, but Its mostly the same minus the ignition...which is what I can not get to work haha) As of right now the truck is still in a no spark situation.

The weather is wet, and the truck has been sitting for a long while so I am hoping dry conditions help.

That being said, I do not think a bad computer was the problem

Otherwise i'm going to start checking for shorts between the computer and sensors/ignition components. This is a bit hit or miss as I am doing this relatively blind (No relevant FSM pertaining to distributor less ignition and Haynes Chilton are worthless past simple things).
  Reply With Quote
Old 01-16-2013, 06:25 AM   #4
ASE Master Tech
BamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shed
 
BamaToy1997's Avatar
Marines: M1A2 hull/turret technician, 4th Maint Btn. 4th FSSG.
Name: Bill
Joined: Jan 2012, #71846
Location: Navarre, FL
Age: 46
Gender: Male
Posts: 8,698
BamaToy1997's Tacoma Gallery
Have you checked for codes? A simple test for codes can help a LOT. You may find an important codes stored that can lead you in the right direction.
  Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
ECU/ECM not communicating w/ OBDII testers Armchair Technical Chat 4 03-06-2014 06:55 PM
ECU Swap from later tacoma into 95-96? Avsguy33 1st Gen. Tacomas 5 09-12-2013 04:53 AM
please help ecm kyoung.709 2nd Gen. Tacomas 26 01-03-2013 07:37 AM
ECM malfuction malibuken 1st Gen. Tacomas 1 12-26-2012 11:36 AM
Where is ECU or ECM on Tacoma 2009? tquang 2nd Gen. Tacomas 3 08-13-2010 08:37 PM


Copyright © 2014 Tacoma Forum. Tacoma World is not owned by, or affiliated with Toyota Motor Corporation.