"Sensor insert" -- fascinating.  Common core with different housings.
Looks like you've got a direction for research.

Yrs,
d

On Fri, Jun 30, 2017 at 10:28 PM, Neil N <musomuso@gmail.com> wrote:

> So it seems I'm not too far off the mark here. This fellow
> "successfully" installed a VW MAF sensor in the MAF body on his Land
> Rover:
>
> http://forum.expeditionportal.com/threads/31752-MAF-Sensor-Repair-In-Depth
>
> "I picked up a sensor from a local independent VW specialist. It's
> from a 2000 Golf GL 2.0L Gas. VW PN: 06A 906 461A, Bosch PN 0 280 218
> 002, it has the Bosch OOC 2G2 032 sensor insert which can replace the
> 029 insert in our sensor.  .......  I removed my sensor insert from
> the LR housing and tossed the insert in the bin. Removed the insert
> from the VW housing, and tossed the housing in the bin. Insert the VW
> insert into the LR housing and screw it down. The hardest part is the
> tamper proof screws they use. 5 point Torx-like tips with the pin in
> the middle. Luckily, you can turn them just using pliers on the heads
> of the bolts! The part is an EXACT match. Even the plug fits well. It
> doesn't have the positive locking tabs, but it's held secure. I could
> tie strap it but...
>
> Fire the truck up, code cleared and has not come back after a month of
> use. I've also monitored the long term fuel trims in the ECU with no
> signs of trouble. I'm showing -7% and -6% on the left and right banks.
> Perfectly in range."
>
>
>
> On 6/30/17, Neil N <musomuso@gmail.com> wrote:
>
> > This is a very broad question, but of the 4 pin Bosch OBD1 (possibly
> > OBD2) MAF, do they all work in the same manner? i.e. is the internal
> > circuitry, voltage spec supplied to the part, the same?
> >
> > I'm looking at a $400 Volvo 850. It actually drives "ok". Needs MAF
> > (poor idle) ......
> >
> > I have to wonder if a MAF from an OBD1 Jetta might work with this Volvo.
>
>
> --
> Neil n
>
> Blog: Vanagons, Westfalia, general <http://tubaneil.blogspot.ca>
>
> 1988 Westy Images <https://picasaweb.google.com/musomuso/New1988Westy>
>
> 1981 Westfalia "Jaco" Images, technical <http://tubaneil.googlepages.com/>
>
> Vanagon-Bus VAG Gas Engine Swap Group <http://tinyurl.com/khalbay>
>