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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.

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Old 10-26-2011, 01:48 PM
MFitzs70's Avatar
MFitzs70 MFitzs70 is offline
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Join Date: Apr 2011
Location: Olmsted Township
Age: 45
Posts: 70
Gender: Male
Vehicle: 2007 Ram 1500 5.7 Hemi BigHorn
Trim Level: ? Big Horn ?
Color: Reddish
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
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Default CEL light

Only mod I have is CAI...but for some reason the cel light came on so i disconnected the battery and it was gone but came on again days later. I left it on and it went out by itself. I've been using 89 gas but switched to 93. Right now the cel light is off. What what would cause it to go on but then go off. I didn't have a chance to pull the code and am going to buy a DSP anyway. Just curious what makes it go on then off. I think normally they go on then stay on..thanks
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Old 10-26-2011, 01:51 PM
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Normally they see a different CFM flow with the aftermarket kit and think there is an intake leak. It takes a bit of time for the PCM to learn the new parameter and normally they don't set a hard code (comes back all the time) but will set a momentary code.

Three (3) starts is usually the minimum number for the computer to adapt.
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