waterinjection.info  

Go Back   waterinjection.info > Injection Theory (what it is and what it does) > Avoiding Disaster

Reply
 
Thread Tools Display Modes
  #1  
Old 19-11-2011, 09:01 PM
dsm1gb dsm1gb is offline
Junior Member
 
Join Date: Nov 2011
Location: Bishop
Posts: 22
Default What exactly is Tephra alt-map fail safe

I have just purchased the aquamist hsf-3,and I am wondering what exactly the tephra alt map fail safe is, and how it works. Since I am using a manual boost controller, I see no way in using the boost cut fail safe method, unless I switch back to stock boost utilizing the stock boost control solenoid.

Any help is greatly appreciated, thanks!
Reply With Quote
  #2  
Old 20-11-2011, 01:10 AM
Howerton Engineering Howerton Engineering is offline
manufacture sponsor
 
Join Date: Feb 2009
Location: Northern California
Posts: 334
Default Re: What exactly is Tephra alt-map fail safe

It's a flash for the EVO ECU that allows the ECU to run two fueling/ignition maps. The maps can be switched between by the Aquamist failsafe when tied together correctly.
Reply With Quote
  #3  
Old 20-11-2011, 07:08 PM
dsm1gb dsm1gb is offline
Junior Member
 
Join Date: Nov 2011
Location: Bishop
Posts: 22
Default Re: What exactly is Tephra alt-map fail safe

Thank you, so I have evo scan,and ecu flash on my evo ix, So I just download the map, and i'm good to go if wired correctly?
Reply With Quote
  #4  
Old 20-11-2011, 07:12 PM
Howerton Engineering Howerton Engineering is offline
manufacture sponsor
 
Join Date: Feb 2009
Location: Northern California
Posts: 334
Default Re: What exactly is Tephra alt-map fail safe

I'm not the authority on it. But if you have the Tephra mod on the ECU already, then there's a pin(or position) on the ECU set for the map changing. You may have to insert a pin in the location. Then, the 0/5V map switching wire from the Aquamist failsafe gets tied to this pin.
Reply With Quote
  #5  
Old 20-11-2011, 09:54 PM
Richard L Richard L is offline
Manufacturer sponsor
 
Join Date: Oct 2003
Location: England
Posts: 4,881
Default Re: What exactly is Tephra alt-map fail safe

Tephra can be contacted on the evolutionM forum:
http://forums.evolutionm.net/ecuflash-341/

Tephra has the abililty to access and create tables and maps on EVO8, 9 and X. The switching of an alterative map is activated via an unallocated pin on the factory ECU. On the X, he overrides and existing pin intended for reading tank temperature (note: on the X, US, J and EUDM ECU pinout variations applies).

He is one very cleaver guy, Cobb has put him under their payroll but you can still get his patch free, just send him your ECU info and he will workout the ROM location for you. Most people (non trader) just sends him a small donation for him to reward his effort. Completely optional.

The HFS-3 can interface with his patch, reducing boost (any level) and alter timing when failsafe is activated.
__________________
Richard L
aquamist technical support
Reply With Quote
  #6  
Old 21-11-2011, 07:05 PM
dsm1gb dsm1gb is offline
Junior Member
 
Join Date: Nov 2011
Location: Bishop
Posts: 22
Default Re: What exactly is Tephra alt-map fail safe

Thank you for the help!
Reply With Quote
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

Forum Jump


All times are GMT +1. The time now is 09:14 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.