T4 Wiring from old site

jtdesign
Posts: 15
Joined: Sun Sep 30, 2018 8:47 am
Location: Peak District

Re: T4 Wiring from old site

Post by jtdesign » Thu Jun 06, 2019 9:59 am

Hi Brian,
it must be said that Guzzi do their best to confuse.
The sensor I have is coded : brown (positive), black (ground) and blue (signal).
The Guzzi wiring diagram shows : green (positive), blue/orange (ground) and grey/white (signal)
If you still have the 3-pin plug that is on the end of the sensor lead then pin 1 is positive, pin 2 signal and pin 3 ground.
There is no spacing adjustment for the sensor, so the only issue I can think of there is if you have changed the brake disc bolts (it probably won't work with stainless ones).
It should be easy enough to see the sensor signal with a voltmeter - a voltage change as each bolt goes past the sensor (I think the voltage goes low at each bolt head, but not certain it is that way round). Bringing a small lump of ferrous metal near to the sensor should change the output.
If you have not yet programmed the new map into the ECU then the speedo readout will be VERY low because the ABS system sends many more pulses per wheel rev than the rear sensor does.

Hope this is of some help, John

brightbrian
Posts: 7
Joined: Tue Oct 09, 2018 10:27 pm
Location: BORONIA

Re: T4 Wiring from old site

Post by brightbrian » Tue Jun 11, 2019 4:56 am

Hi John,
Once again you've been a great help ... It appears as if I had got it right .... At a quick idle the speedo was moving , but not much!!!
I'm hoping the remap will do the trick.
Have you sent me the re-map info yet ???
If so, where did you send it to ???
Thank uou , once again :-)
Cheers,
Brian

jtdesign
Posts: 15
Joined: Sun Sep 30, 2018 8:47 am
Location: Peak District

Re: T4 Wiring from old site

Post by jtdesign » Tue Jun 11, 2019 10:45 am

Hi Brian,
I sent it to your Hotmail address (above).
I have just re-sent the email - it has a zip attachment so check your spam folder because the zip file may trigger the spam filter.

All the best, John.

brightbrian
Posts: 7
Joined: Tue Oct 09, 2018 10:27 pm
Location: BORONIA

Re: T4 Wiring from old site

Post by brightbrian » Thu Jun 13, 2019 4:53 am

Thanks again,
Cheers,
Brian

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