It appears that my TPS has gone bad. I replaced it 10 years ago with an omnipower TPS-OM-S2K. Seems they no longer make them. The only ones I can find are the ebay ones with 3 week shipping from China and the Ballade one that looks like the ebay unit for 2x the price. Any suggestions?

 

Ive used OMNI Power TPS sensors in the past. Ive got over 255K clocked on the one i have now. Try looking for one of those, Click HERE and this says its a OMNI but i would double check. Just make sure to hook a multimeter to it and rotate to dial the throttle position in correctly. There is plenty of threads on how to do that!

 

Thanks for the reply.
Omni power didn't show it on their website anymore and a lot of the units I found online also said "Honda Engine Models: B, D, F, H, ZC" but said not for S-2000. I wonder if that is because you have to slot the factor bolts to get them off the first time or for another reason. Anyway I ordered to one from Ballade on Sunday and it was here by Friday and seems to work fine. I adjusted it to .3 volts and the ECU code didn't come back after I cleared it. I'm sure that a lot of these out there will work but I cant say for sure.
Some observations incase it helps anyone:
The resistance on my old Omi was ~500 ohms to 5.7 K ohms.
The ballade was ~1k Ohms to 5.7 k ohms.
The ballade and the Omni have the plug at a different angle but both seam to work fine.

The ballade one is the one on the bottom.

 

"Honda Engine Models: B, D, F, H, ZC"

S2000 engines are F-series.

-- Chuck

 

I get that, I just kept seeing things like this

 

The F most likely references the F series engines in A and B spec used in other Hondas, not the C spec for the S2000

 

Well its been less than 13 months a just a few thousand miles and the Ballade TPS is dead. what's even worse is now they are ask $125 for one.
any suggestions?

 

Ballade TPS is only guaranteed to work for 12 months, but see if they'll replace it. I've personally never seen any reason to buy anything from Ballade their TCT is infamous for overtensioning the timing chain.

Good luck, if you find a legit replacement part be sure to let us know.

-- Chuck

 

I bought my bucket seats from them and a few other miscellaneous parts from them, but nothing mechanical. They're good for stuff like that. But their mechanical stuff seems to fail pretty reliably.

 

Yeah, they are the only US option for the TPS I could find. The good news is that I called Ballade and they agreed to send me another TPS even though it had been like 14 months.
With hind sight I think the one l bought last year began failing soon after I installed it. The code cleared but I was getting some subtle hesitations around 3 to 4k RPM. I tried all of the other things it could be and it eventually is started getting worse and threw the P0122 Code. It still looked good for resistance and the cables test good. The only way I could see the TPS was the issue was to either log throttle position data vs. RPM or back probe the TPS wires and watch the voltages while I fixed the RPM a little above idle. periodically the voltage would drop to 0.3 VDC just for a second and the engine would stumble.
I also ordered an Ebay TPS from China incase I need another option.