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Old 04-14-2012, 02:20 PM   #60 (permalink)
Josh8loop
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Quote:
Originally Posted by jmcc View Post
A lot of people in this thread seem to forget that the fuelling is controlled by the driver. It is only higher when cold because there are more losses which means the driver goes to a higher pedal demand/fuel delivery to achieve the required output torque.

If timing is advanced and temperature high you will get better FC.


Your right, driver can affect the MPGs achieved hugely. I'm not talking about that though. I'm talking about how the vehicle control system adds more fuel during cold starts to ease startability, and avoid rough idle. Like you mention this is mainly due to a cold combustion chamber. What is FC?
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2002 VW Jetta TDI 5-speed(completed 01M-5-speed swap at 155K miles) 45 MPG City with the 01M, 5-speed 60+ MPG City. Nokian Entyre Low RR Tires. Experimenting with the "Hybrid" 205 Deg F T-stat:

http://forums.tdiclub.com/showthread...=306799&page=4

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