In Take/Throttle Plates/VAG Electronic Throttle

InTake/ThrottlePlates/VAGElectronicThrottle (2005-10-26 16:57:09)

This page is about VAG electronically controlled throttle

Overview

This is a DBC (Drive by Cable) VAG throttle body used on a large range of VAG models. The newest VAG models have DBW (Drive By Wire) throttle bodies.

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.

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)

See also