ECUs and Tuning Discuss Engine Management, Tuning, & Programming

MSM04 no ECU power - only when stock ECU connected

Thread Tools
 
Search this Thread
 
Old 05-05-2015 | 02:38 AM
  #1  
elior77's Avatar
Thread Starter
Senior Member
 
Joined: Nov 2012
Posts: 650
Total Cats: -481
From: Israel
Default MSM04 no ECU power - only when stock ECU connected

Hey,

I'm helping a friend to bypass his msm04 immobilizer using an haltech 1000 ecu.

When I check the main power pin 4AF when no ECU is in I get no voltage.
When I connect the stock ECU 4AF does give 12v as it should.

I gave the haltech 1000 external 12v and it turned on and started the engine.

I would like to know what can cut the 12v on 4AF...

Thanks !
Elior
Old 05-05-2015 | 09:18 AM
  #2  
Braineack's Avatar
Boost Czar
iTrader: (62)
 
Joined: May 2005
Posts: 79,818
Total Cats: 4,152
From: Chantilly, VA
Default

The ECU has to activate the main relay on 3H in order to get power to 4AF.

The Haltech needs to be powered by 4S.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
zephyrusaurai
Meet and Greet
2
09-28-2015 11:59 PM
viriiguy
General Miata Chat
5
09-28-2015 08:39 PM
itsMikey
MSPNP
3
09-28-2015 07:40 AM




All times are GMT -4. The time now is 04:15 AM.