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Diesel cold air intake problem

12 messages, Last post on Jun 23, 2009 at 8:44 AM
You are in the Diesels Forum. Your Host is kcram
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Replying to: pugs (Jul 20, 2006 8:56 pm) |
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| I have a dodge pick 3500 diesel engine cummis I change the fuel filter and I think that I got air on the injetor and now the truck does not star and I don't know what to do to get it to star again please help. | |
take your truck to the dealer they can reset your computer and that will take care of your problem.
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Replying to: pugs (Jul 20, 2006 8:56 pm) |
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Replying to: ronniesr (Feb 18, 2007 8:21 pm) Nope, it will not. The problem is that the MAF sensor is not reading the air intake right. This is a problem with many aftermarket air intakes, including Volant. First thing you need to do is get a good scanner and a good information system, like AlldataDIY. Do the diagnostics for the trouble code and you will see the BARO sensor also plays a part in making this trouble code active and is also part of the intake system. Any time you modify the intake or exhaust systems on these newer cars/trucks, you are asking for headaches. The mass air flow (MAF) sensor is an air flow meter that measures the amount of air entering the engine. The engine control module (ECM) uses the MAF sensor voltage signal to provide the correct fuel delivery for a reduction in emissions. The ECM uses the MAF sensor signal to control fuel delivery until a calibrated amount of engine air flow is attained. The MAF sensor produces an output voltage based on the inlet air flow through the air induction system. This output voltage will display on the scan tool as a voltage parameter and as a grams per second (g/s) parameter. The ECM compares the actual MAF sensor voltage signal to a predicted MAF value. This comparison will determine if the signal is stuck, or is too low or too high for a given operating condition. Verify the integrity of the air induction system by inspecting for the following conditions: Restrictions in the MAF air induction system and the turbocharger system Restrictions in the exhaust system-Refer to Restricted Exhaust. Leaks in the charge air cooler with a J 46091 Leaks at the MAF/IAT sensor O-ring seal Leaks at the MAP pressure sensor seal Cracked or damaged MAF sensor housing Restricted intake air duct or a dirty air filter element Debris blocking the air sensing filaments of the MAF sensor A MAF sensor that is installed backwards An exhaust gas recirculation (EGR) valve that is stuck open. A skewed MAF sensor will also cause the predicted MAF value to disagree with the actual MAF sensor value. Use the scan tool to compare the MAF Sensor parameter to a known good vehicle under various operating conditions. |
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Replying to: pugs (Jul 20, 2006 8:56 pm) |
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| Just got a Duramax so have been looking. I was told that lean mixture was a problem IF YOU DIDN'T DISCONNECT THE BATTERIES during installation. When you reconnect and start the computer is said to reset the mass air to take care of this problem. | |
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Replying to: pugs (Jul 20, 2006 8:56 pm) |
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Replying to: pugs (Jul 20, 2006 8:56 pm) |
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