hall sensor

[johntramp]

Hi.

I am using the following hall sensor, as seen on this page, for use with megasquirt on a 20v 4age.


The sensor is:

Mitsubishi Distributor Module
J862 - 6 terminal hall with igniter
1992+ Galant 4cyl / V6 SOHC single coil
Dist T5T57071 / T6T57671 / T6T58071
Early T6T58271 - HT coil in base

So far I have modified the original distributor to use this sensor in place of the VR sensor, and have set up megasquirt to use a hall sensor. All I have left is to do the wiring.

There are six wires coming out of the unit, but I believe only 4 are to do with the hall sensors;
Ignition, Ground, CMP signal and CKP signal.

I have spent hours searching through tech handbooks on the internet looking for the wiring diagrams, with no luck.
Has anyone by chance got info on this module? Or any ideas how I can figure out which wire does what?

Thanks
-John

[gtpornstar]

hey mate how did you go with this ?
Currently trying to replace my distributor due to size (2JZGE) so reading up

[johntramp]

Yeah, got it going.

[gtpornstar]

Any idea on how to use a different pickup method ?
Got a bit of a cat fight going on between my turbo and my distributor ....

[johntramp]

I assume you are using an after market ecu.

Have you looked into using a crank angle sensor and electronic ignition?

[gtpornstar]

yeah problem was where to get the crank angle sensor reading from. Have now found out can try mount a turbo sensor onto the intake cam or have to try something like what the C&M supra does with entire dissy on the front of the exhaust cam.

[ChaosAD]

You could probably use edis and weld a toothed ring onto the crank pulley.

Why are you changing the pickup in th silvertop dizzy?
All you need to do is either grind two opposing teeth off the 24 tooth wheel and use it as a 12-1 wheel. Or make a 2nd vr circuit and leave the dizzy as it is.

[johntramp]

yeah problem was where to get the crank angle sensor reading from. Have now found out can try mount a turbo sensor onto the intake cam or have to try something like what the C&M supra does with entire dissy on the front of the exhaust cam.

I have seen people putting the dizzy on the front of the cam on 20v 4ages, looks to be a lot of work tho. The only reason I see to do it would be to use the factory ECU. The dizzy may rotate in the other direction to the front of the cam too?

It is quite easy to add a crank angle sensor. As ChaosAD said, you just need to add a toothed wheel and a VR sensor.

[Mr Revhead]

just as an aside...
i was at repco the other day and they had one of those on the counter....
quite cheap iirc
just a note for anyone who may think one of these may suit their needs....

[gtpornstar]

You could probably use edis and weld a toothed ring onto the crank pulley.

Why are you changing the pickup in th silvertop dizzy?
All you need to do is either grind two opposing teeth off the 24 tooth wheel and use it as a 12-1 wheel. Or make a 2nd vr circuit and leave the dizzy as it is.

Sorry should have explained, its not for a silver top but a 2JZGE (non turbo 2J). I actually just need one tooth because it has a crank sensor so the ecu just needs to know when the cam is at TDC for number 1 (using aftermarket ecu).

Tell me more about the edis and how this would work, any pictures by any chance ?

[gtpornstar]

just as an aside...
i was at repco the other day and they had one of those on the counter....
quite cheap iirc
just a note for anyone who may think one of these may suit their needs....

A Kit to have welded on to the cam ?

[Mr Revhead]

sorry, no the sensor in the original post

[johntramp]

Here is some info on EDIS.

If you are using waste spark ignition you don't need a cam angle sensor, as it doesn't matter which TDC it is.
You should be able to just use the crank angle sensor.
What type of ECU?

[fivebob]

If you are using waste spark ignition you don't need a cam angle sensor, as it doesn't matter which TDC it is.
You should be able to just use the crank angle sensor.

It also matters if you're planning on doing full sequential fuel injection, otherwise you would be 360° out in the injection timing

[johntramp]

I don't know that there are any gains in sequential injection, but yes you would also batch the injectors.

[fivebob]

I don't know that there are any gains in sequential injection

Depending on the way batching is done there maybe HP increases, but the benifits of sequential injection are mainly economy and increased safety when tuning on the edge.