39$ebay chip
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Join Date: May 2004
Location: The hills of No. Calif.
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If it's the one I think it is, it's just a resistor that you install at the Engine Coolant Sensor that makes the computer think that the engine isn't quite up to operating temperature yet and so will allow more timing advance. I belive you can get them at an electronics supply house for about a buck. Probably still not worth it in terms of other potential problems it can create...
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octaneforce
1987 - 1996 F150 & Larger F-Series Trucks
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03-26-2009 10:40 PM