TPS Test Harness

[jamepc]

So I received the TPS for the earlier Mercury's that have the round connector and I'll be swapping the flat connector off the old TPS.
I didn't want to probe through the wires again to set up the new TPS so I ordered a Test Harness. The part number in the Service Manual shows 91-816085 for the harness part number and I found one on eBay. Received today and the harness has the round connectors. I looked at others on eBay and a closer look shows this part number does indeed have round connectors. So the service manual is incorrect? If so, what would be the correct part number?
Thanks,
James

I just checked the Mercury Online Catalog and it also shows 816085 as the harness part number and the picture of the TPS as flat plugged

SN OE382923

 

[Dr Honda]

Hummmmmmmmmmmmmmmmmmm...........................


OK, the manual lists is as 91-816085. But it clearly has the round lugs when I do an internet search. BUT, if I go directly to a parts place, and look in the tool section... it's listed as Quicksilver 816085. (without the 91- )

 

[jamepc]

So a search shows there's a harness without the 91-. But it's difficult to say if that just how it's listed or if it's an actual different part.
Since I have to cut, splice and solder the old TPS connector onto the new TPS, I may as well add a couple wires just for setup and testing purposes.

BTW, the different style TPS (with the round connector) has a larger body then the one with the flat connector. New = 1" long, old = 1/2" long. Anyone remember this being the case for them?
Since I have the wrong (round) harness I hooked it up to the TPS. It's at .11 ohms at rest and 10.16 ohms fully open. I cant compare it to the old one because it just reads 0 in all positions. I'm just bench testing it so ohms is the only reading I can provide right now, no DC readings yet. But does this sound correct?

Thanks again for any help.
James

 

[Dr Honda]

The scale is fine. It's a 12 ohm TPS. Once on... you will adjust it for correct idle.