Idle to high | AEM
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precision350z
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Last seen: 2 years 11 months ago
Joined: 05/22/2016 - 15:29
Idle to high

Hey guys, have an AEM Infinity 8 in my car, was tuned properly by a reputable shop. Always ran perfect, no troubles. I've just put in a new built motor, with 280 degree cams, and a new intake/Throttle body. Started the car for the first time, ran great for about 20 seconds, luppy as hell ofcourse but stable. Then the car started to increase RPM to anywhere between 2400-2900 and hold.. At 900ish to 1200 rpm the car had about 15inHG vacuum. Been checking for vacuum leaks forever, can't find one, and really not thinking thats the problem. Any ideas? 

Thanks, would really appriciate some help!
Tanner

nsiv
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Last seen: 1 year 9 months ago
Joined: 05/21/2015 - 05:33
Need to get it retuned for

Need to get it retuned for those modifications.

 

AEM_PT
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Last seen: 3 months 1 week ago
Joined: 05/22/2014 - 08:13
When you say there is a new

When you say there is a new intake and throttlebody, would it be safe to assume that you installed a bigger intake manifold and a larger DBW throttle-Body? If this is the case, you will have to adjust your idle settings at the very least to deal with the inscreased idle RPM you are seeing. Vehicle will need to have adjustments made across the board to compensate for the modifications.