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Sedans Volkswagen Jetta VW Jetta TDI
3757 messages, Last post on Dec 07, 2009 at 4:45 PM
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Replying to: jogousa (Oct 18, 2009 12:15 pm) I cannot let such innaccuraces go by.... the H2O (water droplets) seen from exhaust is mostly a by-product of combustion. A cold catalytic converter cannot perform its job so it does not come into play until engine is fully warmed up. At that point... all H2O is in the form of steam. Reminder: Combustion is the combining of anything with Oxygen... (in this case Hydrogen) resulting in H2O. When your engine combustion-chamber runs too hot... even the Nitrogen in air combusts with the Oxygen... this is called NOx (nitrates of oxygen). The reason engines have a EGR (Exhaust Gas Recirculation) system is specifically to reduce NOx Even a simple CANDLE produces H2O... just hold a butterknife over the flame for a few seconds and you will see H2O condensation on it. A catalytic converter is mainly intended for Oxidation of carbon monoxide to carbon dioxide. (2CO + O2 → 2CO2) also Oxidation of unburnt hydrocarbons to carbon dioxide and water (CxH2x+2 + 2xO2 → xCO2 + 2xH2O) Besides... the VW TDI has a catalyst in the exhaust just like a gasser engine.... so your assertion is incorrect from the get-go 8-)
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Replying to: bpeebles (Oct 20, 2009 5:14 pm)
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Replying to: Mr_Shiftright (Oct 21, 2009 8:16 am) |
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Replying to: Mr_Shiftright (Oct 18, 2009 2:14 pm)
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Replying to: shrifty (Oct 21, 2009 5:27 pm) |
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Do the 2009 and 2010 Jetta TDI have Cruise control as a standard feature. Since I like stick shift I find on the highway cruise control adds greatly to your mpg.
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Replying to: simeonw (Oct 25, 2009 11:54 am)
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Replying to: simeonw (Oct 25, 2009 11:54 am) |
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Replying to: rcarr7 (Oct 25, 2009 11:59 am) |
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My TDI will not start. Battery is good, but nothing happens when I turn the key. All the lights come on and the radio works fine. Any suggestions?
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