Quote:
Originally Posted by robchalmers
You WANT a PD lump, they are the best to have, the earlier umwelts are good to but PDs either turbo (TDI) or Non-turbo (SDI) are better on fuel and emissons.
basically the umwelt is a mechanically fuel pump/injection system and the PD is a more advanced injection set-up
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can the pd lump hack any veg oil action?
Do the pd lumps have specific engine codes?
How good are the factory maps in general-do they sacrifice some mpg and timing for dealing with poorer fuel?
Thanks for the advice!