TPS Voltage Adjustment ?

[lcopas]

When using the HondaLogger software ... I read that you go to the file menu button and under settings, you are supposed to input the TPS voltage when closed and the TPS voltage when open so that the TPS will be calibrated with the software.

I cannot find any such settings.

I instead moved the TPS sensor so it would match .45 volts and the readout in the Hondalogger software says it at 0% open.

Is the first procedure in an older version of software ?
Or am I just not looking in the right place ?
Thanks

[Hondata]

There is no adjustment in HondaLogger for the TPS. Just set the TPS to 0.45 - 0.47 V at idle, like you have done.

[toddjlarson]

Hi. I was wondering how you move the TPS sensor. I wanted to check my TPS sensor's voltage, but I am unclear how to do so, or even how to move it. Can you use a multi-meter?

I went to check the TPS, but where do I place the multi-meter probes to determine how to move the TPS? Also, I expected the TPS to be held on by two screws, but it seems to be held on by headless studs. I am pretty sure I am looking at the right sensor. It is right on the side of the throttle body.

Sorry for my incompetence, any suggestions are appreciated.

I am having some idle issues on my turbo B18C1, and I think the fuel cut caused by the TPS voltage being out of range may be the culprit.

[AndyE]

The headless shear bolts are indeed what hold the TPS in place. If you have a steady hand, I'd recommend using a Dremel with a cut-off wheel to cut a slot in the top of each bolt so you can use a standard flat-blade screwdriver to unscrew it. I used this method and it worked quite well.

Alternatively, you can carefully trim off the heads of the bolts with the same tool and slide the TPS off the leftover studs. You can then remove the studs with pliers, and buy some metric bolts or machine screws to replace the studs when you reinstall the TPS.

Regarding your multimeter question, the only way I would recommend to read the voltage from the TPS is using Hondalogger. This is the most reliable method, as it will tell you exactly what the ECU thinks the TPS voltage is. Using a multimeter might not give you the same reading that the ECU sees--a difference of 20-40 mV can make a world of difference to the ECU.

If you don't have the datalogger option, find a Hondata dealer to assist you in tuning; you only have to set it correctly once per ECU swap.

[toddjlarson]

Thanks.