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11-08-2013 #1
Registered User
- Join Date
- Jul 2012
- Location
- Mooresville, NC
- Posts
- 78
New LS3 crate Engine - Idles HIGH
Just got my new LS3 525hp crate engine cranked and it wants to rev to 3500 rpm and then back itself down ~1000 rpm. The car just has headers and no exhaust right now, but i would assume that wouldnt cause the problem. Whats weird is that I can place the car in gear, slowly let off the clutch placing load on the engine and the car will lower idle to 800-1000 rpm. If I place the car back in neutral and tap the accelerator the idle will go back up a bit. I have no clue how to explain that. Any help out there?
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