How it works

The DBC throttle body contains

* two position sensors (variable resistors)

* one end switch and

* a DC electric motor to adjust the angle of the throttle. Spring return to closed position

** Is this 12..14V and what max current? (are the 1.1A stepper driver channels able to drive it or not ?)

** Does it withstand 14V continuous drive even in the end-position ? (for how long?)

Inside

See [DBC circuit diagram].

Pictures:

Can Someone tell me if the connector is micro-power-timer or junior-power-timer (likely) size? (see ConnectorSelection or tycoelectronics.com if unsure about sizes, or just measure the pin dimensions, like "2.68 x 0.8mm"). I saw an apparently matching female 2x4 one-end-rounded connector housing on the front-cover of a tyco catalog (could not find the product inside though, except in 2x4 pin microtimer size - on http://www.tycoelectronics.com ).

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note that it has 2 speed-down gears inside, about 1/7 and 1/8 ratios (1/56 effectively).

Pictured throttle body is not fully motor driven.

* Only throttle plate position at idle is controlled with gear motor.

* Hence this is cable operated, but idle is controlled with gear motor.

* Has two potentiometers, one for idle position feedback and other for measuring cable operated throttle plate opening angle.

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Sources

* VAG item number ?

** VDO unit. Throttle diam 45mm

*** 030 133 064 F

*** 408 237/130/004 I 3 33 99

* other suppliers ?

Costs > 350 Euro. Anyone knows good sources ?

Anybody knows VW partnumbers of TPS sensors ? Or good sources of any TPS sensor?

* VW TPS part numbers:

** 2.0L 8v: 037 907 385 N/P/Q

** 2.0L 16v: 054 133 154 F

** G60: 037 907 385 D/M (and maybe H)