[Vwdiesel] TDI Starting Poor
val at swamps.roc.ny.us
Sat Apr 30 13:04:57 EDT 2005
It's finally getting warmer, and my TDI is starting poorer.
Symptoms: Coolant temp between 5 and 15C, and engine may take 20 seconds
of crank to get going. Coolant temp below -8C, and engine starts with a
tap of the starter.
Coolant temps are using VAG-COM, and correspond to the outside air
When engine is warm, or OAT above 20C, start is after a rotation or two
of the engine.
Theory: A short glow isn't happening at initial start in these temps.
Assumption: Sensor indicated by VAG-COM drives glow time. In this temp
band, there is 0.0 preglow indicated by VAG-COM
1. Can the user tweak the preglow cooeficients using VAG-COM?
2. Other problems or issues I should be chasing?
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