Thread Tools Search this Thread
Old 23 August 2008, 13:26   #1
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,650
Sooz TPS Wiring? - DT25/30/55/60

Can anyone shed light on the Suzuki Throttle Position Sensor wiring as fitted to early 90’s DT25/30/55/60? –The Clymer Manual I have has contradictory info, and if my theory is correct, I have a knackered TPS

The “sensor test” section of Clymer implies there are 4 wires coming out the sensor as follows:
3 to a black plug (black / red stripe, light green / red stripe and black.) and a fourth separate
black wire with a crimped washer type connection.

Now, my Sensor on the engine agrees with the wiring diagram at the back of Clymer, namely as above, but no black wire to the 3 pin plug. (Plug still a 3 –pin, but the centre Black wire is not there, nor is the pin on either the sensor or the loom, and the space is filled with sealant)

My question is – can anyone confirm whether the two black wires on the “4 wire” sensor are connected together inside the sensor? The test described uses the 3 pins of the plug leaving the "foutrth wire" free, and so I assumed I could use the “free” black cable on mine to do the test instead of the black in the plug. This is on a '93 vintage DT25, I suspect an earlier incarnation of the TPS was used on something that required both a dedicated and “global” earth connection, hence the extra black cable.

I have worked out form the info I have available that the wires appear to be:
Black – Earth
Black / red stripe +V
Light Green / Red stripe - signal to Cdi

If this is correct, then my TPS is gubbed. If not, could anyone enlighten me as to the appropriate test voltages & pins?

9D280 is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -5. The time now is 08:22.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.