Discovery II Talk about the Land Rover Discovery II within.
Sponsored by:
Sponsored by:

Can I remove Secondary Air Injection (SAI)?

Thread Tools
 
Search this Thread
 
  #1  
Old 05-03-2013, 10:00 AM
Dan7's Avatar
Recovery Vehicle
Thread Starter
Join Date: May 2012
Posts: 864
Received 16 Likes on 15 Posts
Default Can I remove Secondary Air Injection (SAI)?

I've cursed SAI no less than 66 times during this engine swap. Either the search function on the forum doesn't work (probably operator error), or no one has asked yet (which I can't believe). What's involved? First, consider that I plan to keep this truck forever. Also, my state (AK) has no emmissions requirements. That said:

Can the heads (and everything else) just be plugged?
Is the ECU going to throw codes?
If I did sell it, could I put it all back on?
 
  #2  
Old 05-03-2013, 11:14 AM
coors's Avatar
Pro Wrench
Join Date: Jan 2011
Location: Philly
Posts: 1,869
Received 43 Likes on 41 Posts
Default

I'm guessing you could plug it, but you'll definitely get codes. Sorry, I don't have a definitive answer for you.
 
  #3  
Old 05-03-2013, 11:24 AM
willrok13's Avatar
Winching
Join Date: Oct 2008
Location: Auburn, AL
Posts: 579
Received 12 Likes on 10 Posts
Default

You can, but my understanding is that you will need a computer from a non-sai truck or you will get codes. Word on the street is that the sai is somehow "hardwired" to the ecu. I have done some research on this very topic and it appears as though there may be a computer you can buy that can do it (blackbox solutions I believe), but I haven't had time to really follow up.

Here's their web address: http://www.blackbox-solutions.com/
 
  #4  
Old 05-03-2013, 11:45 AM
jafir's Avatar
Super Moderator
Join Date: Nov 2009
Location: Arkansas
Posts: 5,847
Received 95 Likes on 90 Posts
Default

Anything is possible, but it wouldn't be legal. That said depending on the year of the truck, you'd need an ECM from a non-sai disco and you might need a different fuel pump as some of the later LEV trucks had a different way of doing the evep emissions tests. If you need a different fuel pump, you'd probably have to wire in the pressure sensor manually. There are some good discussions on discoweb about this subject.
 
  #5  
Old 05-03-2013, 12:06 PM
Dan7's Avatar
Recovery Vehicle
Thread Starter
Join Date: May 2012
Posts: 864
Received 16 Likes on 15 Posts
Default

Good info, but if I have to buy a new ECU to get it to take, it's probably not worth it. I'm not concerned about the legality issues though. I'll look at blackbox just for curiosity though. Thanks!
 
  #6  
Old 05-03-2013, 12:29 PM
jafir's Avatar
Super Moderator
Join Date: Nov 2009
Location: Arkansas
Posts: 5,847
Received 95 Likes on 90 Posts
Default

An ecu would be pretty cheap used, $50 or so, but you'd have to get it synced up with the rest of the car or else the engine won't run.
 
  #7  
Old 05-03-2013, 12:45 PM
Dan7's Avatar
Recovery Vehicle
Thread Starter
Join Date: May 2012
Posts: 864
Received 16 Likes on 15 Posts
Default

@#$!!! I just want to rip all this SAI crap out, throw it in a pile (a BIG one!), light it on fire and dance around it. Feels like I'm handcuffed to Jane Fonda...doesn't really slow me down but and high maintenance darned annoying!
 
  #8  
Old 05-03-2013, 08:19 PM
jfall's Avatar
TReK
Join Date: Mar 2012
Posts: 3,171
Likes: 0
Received 44 Likes on 37 Posts
Default

you would need to put in an ECU / ECM from a NON SAI rover.
and mate it with the BCeM.
Then you may not get codes.
But, who knows.
 
  #9  
Old 05-04-2013, 11:43 AM
SuperSport's Avatar
Pro Wrench
Join Date: Dec 2012
Location: Placerville, CA USA
Posts: 1,364
Received 31 Likes on 19 Posts
Default

Originally Posted by Dan7
@#$!!! I just want to rip all this SAI crap out, throw it in a pile (a BIG one!), light it on fire and dance around it. Feels like I'm handcuffed to Jane Fonda...doesn't really slow me down but and high maintenance darned annoying!
That's definitely a conundrum... Being chained to Jane Fonda. On one hand, you want to do something naughty. On the other hand, you want to do something not acceptable, like smack her upside the head.
 
  #10  
Old 05-04-2013, 02:39 PM
jfall's Avatar
TReK
Join Date: Mar 2012
Posts: 3,171
Likes: 0
Received 44 Likes on 37 Posts
Default

That is why Jane left Ted.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Ad!
Discovery II
26
10-20-2020 09:40 PM
colin2496
Discovery II
0
10-17-2011 09:58 AM
aublec22
Discovery II
2
03-20-2011 01:28 PM
dg17319
Discovery II
1
05-27-2010 06:42 AM
John Doud
Retired - Private 'Wanted' Classifieds
5
03-25-2010 08:22 PM



Quick Reply: Can I remove Secondary Air Injection (SAI)?



All times are GMT -5. The time now is 07:40 AM.