Engine difference 1.4TDI(75) or (90)

alexwharton

Member
hi
does any body know what the Physical differnence of these engines is?
is it just the ECU or are any of the engine parts different?
 
There are a number of physical differences, first and foremost of which is the variable-vaned turbo on the 90, which can alter the vane angle to give the impression that the turbo is bigger than it actually is.

There are a number of other differences, intercooler etc, but they have all been covered in previous threads.

Cheers,

Mike
 
As mike says the 90 turbo is variable vaned / the injectors are bigger / air flow sensor and ecu map/intercooler
but on late 75s they also have a variable vaned turbo

cheers
robin
 
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