Haltech E6M - Manual (Page 141)

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Note: Since there are a large number of reluctor distributors it may be
necessary to connect an external custom reluctor adapter unit if the on board
circuitry cannot be configured satisfactorily. Please contact your nearest
Haltech dealer if you are experiencing reluctor configuration problems.
E.3 Motronic Type Trigger
The Motronic Type trigger input is based on the Bosch Motronic sensor system comprising a
multi-tooth wheel, generally 60 teeth, with 2 teeth missing and a sensor which counts the
passing teeth. The E6M supports this trigger systems and other similar systems as indicated
below:
Manufacturer Number of teeth Teeth Missing
Bosch 60 2
Ford 36 1
Toyota 36 2
The teeth provide the means for generating trigger signals and the missing teeth provide a
home reference.
Note: that some Motronic sensors can be both Hall effect type and reluctor
(magnetic coil) type. Hall effect sensors can be identified by a 3-wire sensor
and reluctor sensors by a 2-wire sensor. These sensors have to be configured
differently.
E6M and E6M-8 ONLY
Note: Most Motronic type sensors are reluctor (magnetic) type sensors which
give out a signal which is similar to a sine wave and this signal must be
conditioned by a reluctor adaptor.
The Haltech E6M onboard reluctor adaptor is based on microprocessors and at
the date of publication it is necessary to specify the trigger type as Motronic to
ensure that the chips are programmed to suit Motronic. The programming in
the chips for Motronic systems is different for that of other systems.
We normally discourage opening the case of the ECU particularly as this can affect
warranty but if in doubt that the correct version of reluctor adaptor chips are installed
this can be checked by carefully removing the 4 screws from the end plate with no
connector and sliding the removable lid from the box. You will note 2 chips marked
PIC16C711 and these should be marked with the letter “M”. If not it is probable that
the correct chips are not installed and you should contact your Haltech supplier. At the
date of publication only Motronic type systems of 60 teeth and less are supported but
higher teeth numbers will be supported at a later date.
The Motronic magnetic sensor has two wires, one positive (+), and the other negative
(-). The wires are sometimes marked as such, but more often they are not. It is very
important that the positive wire connects to the Input B (Pin D of a fully terminated