Jump to content

Decent Tune-up


docc

Recommended Posts

  • 3 months later...
1 hour ago, po18guy said:

Got my Casper's TPS breakout harness. How do I terminate the green and purple wires?

Er, into a multimeter set to dc?  Sorry- i feel i’m misunderstanding the question 😆

Link to comment
Share on other sites

10 hours ago, po18guy said:

Got my Casper's TPS breakout harness. How do I terminate the green and purple wires?

I shortened the two correct wires and tagged them red for positive, black negative with female bullet connectors that my multimeter clips into. Let me get a reference image that clarifies and specifies the +/- . . .

edit: Okay, here you go. violet/black is positive, violet is negative. The third (yellow) wire gets cut and looped back into the heat shrink, unused.

DSCN3581.jpg

  • Like 1
Link to comment
Share on other sites

You'd think a purpose built MG harness breakout would have only the two necessary wires? Are there earlier or later TPS units that require a third (ground?) wire? I have two plain purple and a single plain green. Will check after a period of dormancy.

Link to comment
Share on other sites

16 hours ago, po18guy said:

You'd think a purpose built MG harness breakout would have only the two necessary wires? Are there earlier or later TPS units that require a third (ground?) wire? I have two plain purple and a single plain green. Will check after a period of dormancy.

All V11 TPS have three wires. The violet is the ground. Both the violet/black and yellow connect to the ECU, but the yellow is not used to baseline the TPS.

It appears these wire colors remain consistent across the V11 range, but stranger things have been discovered.

Link to comment
Share on other sites

41 minutes ago, docc said:

All V11 TPS have three wires. The violet is the ground. Both the violet/black and yellow connect to the ECU, but the yellow is not used to baseline the TPS.

It appears these wire colors remain consistent across the V11 range, but stranger things have been discovered.

I think docc it's less confusing to identify the wires as earth, Input ( 5 volt power supply) and output (the variable voltage seen by the ECU so it knows what the throttle angle is) All the positive, negative etc seems confusing to me as there are actually 2 positives, one a variable and one not.

So Violet is earth

Yellow is Supply

Violet/Black output.   

BTW the 99 V11 doesn't have the Violet as an earth according to the WD, it's black.

Ciao 

  • Like 1
  • Thanks 1
Link to comment
Share on other sites

Well said. So, the TPS is baselined ("set") using the Violet/Black output and the Violet (earth/ground). The Yellow (Supply) is not used in the procedure.

[FWIW, my Owner's Manual and Workshop Manual show the violet TPS earth/ground. I do see a black TPS earth/ground on Carl Allison's diagram, yet my March 2000 Sport has the violet earth/ground wire.]

Link to comment
Share on other sites

If you are using the Casper's , your DVOM will show either a pos. or neg. V reading .

 I used terminals {meter lead ends) that I could plug my meter leads directly into . 

Link to comment
Share on other sites

2 hours ago, docc said:

Well said. So, the TPS is baselined ("set") using the Violet/Black output and the Violet (earth/ground). The Yellow (Supply) is not used in the procedure.

[FWIW, my Owner's Manual and Workshop Manual show the violet TPS earth/ground. I do see a black TPS earth/ground on Carl Allison's diagram, yet my March 2000 Sport has the violet earth/ground wire.]

Yes docc, I cant remember which colours my bike has now but I seem to recall there wasn't a black. Maybe the Allison diagram is wrong.   

Ciao

Link to comment
Share on other sites

Given the fine direction provided by the IllumiGuzzinati, here is the TPS harness all dressed with multimeter connectors attached and the yellow terminated with liquid electrical tape and tucked into the harness.

IMG_3112.JPG

  • Like 4
Link to comment
Share on other sites

6 hours ago, docc said:

Nicely done, @po18guy!

So, those connectors plug directly into the multimeter? Tidy!

(In best Elvis voice) Thank ya very much! I'm on kind of a roll with this electrical stuff. For the ever necessary voltage check via the SAE charging cable:

IMG_3114.JPG

  • Like 5
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...