MembersPage/BmwMFiftyTwoTriggers (2018-09-08 07:51:15)

Related to BMW M52 MembersPage/BmwMFiftyTwo


important: BMW M52 Camshaft HALL sensor needs to be replaced !

A camshaft sensor that is known to work and easy to bolt on:

BMW 12 14 1 438 081 - which we know works, HALL Effect Falling Edge, Typically found in BMW M50 vanos.

HALL sensor 3pin AMP ("injector") male connector pinout (from 1993 BMW bmw_etm_e36_1998_notcompact.pdf document page#106 ):

Even though LOW/HIGH cam output can be provided with many methods BMW 12 14 1 438 081 HALL Effect Falling Edge sensor (eg from BMW M50 Vanos) has several advantages:


Measure HALL trigger supply voltage

Related to:

Note : BMW88/54 (DME relay out) is not strictly related, but traditionally, in several successful installs, was used to provide +12V for BMW88/65 cam-HALL.


However, for trigger problems more measurements are almost always needed also:


Preferrably create custom page for the project (but editing this page to provide information is temporarily OK, possible to organize later, just define some project nickname ).


Old harness

We have a 6cyl BMW harness with 4 connectors of female 3-pin injector (AMP), that was believed to be from M52 (but not certain, but apparently yes) :

TPS

primtrig HALL: Crank sensor

sectrig HALL: CAM sensor

Idle Valve

https://photos.app.goo.gl/vT76gkVCSKQoLUZS8

Maybe this is from some other harness, not M52 ?


M52 Test bench

Planned: M52 harness from E39 manual transmission

Acquiring a harness from E39 for more tests.

Conclusion:

TODO: update xls and docs

Also see: