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Old 11-20-2011, 09:41 PM   #14 (permalink)
ex-x-fire
EcoModding Lurker
 
Join Date: Jan 2010
Location: Wi.
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Its not the heater causing the drop, or the electrical load. Its the cold air thats going into your engine, its alot more dense so the ecm has to add more fuel to maintain the proper air/fuel mixture. The way to get around this is to preheat the incoming air to around 100*. The trick is to get the ducting off the the exhaust manifold & feed it to the air filter.
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