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DET alarm on turbo Alpha

jb800

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Jan 9, 2008
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Currently MN
Looking for a little advice. I have a 2019 Alpha with Silber turbo. Running 6lbs of boost flawlessly all last winter. Last ride of the season had a pull through the trees and triggered a DET alarm. Running 91 octane and 1.5 - 2 gallons of 100ll per tank. Shut it down for a bit, alarm cleared and had no problems the rest of the day. Did not get to do any testing after this. Anything preventative a guy should look into before the season? Swap plugs, knock sensor etc, or just runner? Anybody experience this inconsistently? Thanks in advance fellers!
 

madmax

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Nov 26, 2007
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What elevation you run at? If I didn't run 2 gallons of 110 per tank on my 19' alpha silber turbo at 6lbs, I would occasionally get the set sensor if I was working the motor hard. This is riding 8,000-10,000 ft. Id use 3 gal per tank 100 if that's what you use.
 

kiliki

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Dec 27, 2008
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your just on the edge or your fuel OCT just add a gallon more per tank. weather, temp and alt all play into this. most of the time its just as you leave your lower alt with the first climb. I too had to run 3 gallons of 110 to make it work. Pump gas turbos are not true unless you live at 10K
 

jb800

Well-known member
Lifetime Membership
Jan 9, 2008
138
116
43
41
Currently MN
What elevation you run at? If I didn't run 2 gallons of 110 per tank on my 19' alpha silber turbo at 6lbs, I would occasionally get the set sensor if I was working the motor hard. This is riding 8,000-10,000 ft. Id use 3 gal per tank 100 if that's what you use.
8-10000 aswell. I will try 3 gallons of 100ll this year
 
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