Question about 2009 Chevrolet Silverado 2500HD
Installing performance chip
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Posted on Jan 02, 2017
SOURCE: IAT sensor wires
Those chips are not chips just a 5 cent resistor to alter the IAT (Intake Air Temperature) signal to the PCM (Powertrain Control Module), the idea is that the engine control computer thinks it is getting colder air than it really is and slightly increases spark advance, u will feel no difference in power but u may gain 1 MPG in fuel economy, so u decide. One last note they are illegal in most states that do emission tests, it alters the factory controls.
Posted on Jan 06, 2009
Yes. That is exactly it. The Air Intake Temp Sensor is built into the Mass Air Flow Sensor on the Air Filter Box. Below is a picture...
I personally have not connected one of these Chips to a Tahoe...What I can provide you with, is the Connector Diagram so you know exactly what Wires you need to Splice in to. See below...
I hope this helps you. If you have any more questions or need any more diagrams, please don't hesisitate to ask...Thanks again, JShreader.
Posted on Mar 31, 2009
SOURCE: i have 5 wires going
Well im not sure why you are asking this question . They are two differant systems the mas air flow and the idle air intake bolth run off a 5 volt referance voltage but are not related so to speak to each other as far as the same ref voltage the same ground as every thing else .The IAT MAP TP ECT and fuel pressure sensor are one side and the MAF EGR and the EVAP are on the other side but all on a common ground . Ex plain what you are trying to do and why you are trying to do it and mabey i can make your life a little easyer and what caused this problem
Posted on Apr 02, 2011
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