SR tuning help

A place to discuss the systems and methods of tuning Nissan engines.
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thang nguyen
Posts: 215
Joined: Tue Aug 22, 2006 5:23 pm
Car: 1989 Nissan 240SX Fastback

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Just installed an AEM EMS on my redtop.

Everything stock except for a fuel pump.

So I test drive it and the A/F ratio is like 15 and it has completely no boost, and it takes like an hour to reach 3k rpm. Anyone have an idea to the boost problem???

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IanS
Posts: 10090
Joined: Thu Dec 23, 2004 3:07 pm
Car: 2002 Subaru WRX, 2010 Subaru Forester XT, 2004 Infiniti G35 Coupe.
Location: Esko, MN
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you shouldnt be driving the car until it has been tuned on a dyno, by driving it without a tune you are risking engine destruction.
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thang nguyen
Posts: 215
Joined: Tue Aug 22, 2006 5:23 pm
Car: 1989 Nissan 240SX Fastback

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well i tried....just to see where i'm at. After lookin at the Aem log...boost was at 0 and A/f ratio was like 15....buddies saying that is pretty lean. anyone in the atl have tuning experience with the EMS or a downloadable preset tune?
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