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-   -   TPS Calibration using ohms (https://www.hondaaccordforum.com/forum/general-tech-help-7/tps-calibration-using-ohms-53372/)

RobinsonRicer 03-04-2013 12:45 PM

TPS Calibration using ohms
 
So I know how to calibrate the tps using the voltage measurements from the TPS wires to the harness but I'm wondering if I can use ohms (resistance) that way I do not have to hook the TB up to the car in order to calibrate it.

Dr. Drivability 03-04-2013 02:08 PM

terminal 1 and 2 should yield .5 to .9 K-ohms throttle fully closed
terminal 2 and 3 should yield 4.5 K-ohms throttle fully closed

Roader 03-04-2013 02:33 PM

I don't know but what about using a five volt supply to calibrate when it's off the car? If you have an old ATX computer power supply, the red wire output is 5VDC. USB ports are 5v too.

RobinsonRicer 03-04-2013 02:35 PM

Thanks Dr. Drivability

and
@Roader

I was also thinking about that but I have to get a scrap connector to make it a little easier. I have adapters and stuff I can hook up for a power source.

Dr. Drivability 03-04-2013 02:38 PM

why???

RobinsonRicer 03-04-2013 02:41 PM

The initial calibration write up I used had voltages and was used when the tps was hooked up. I figured ohms would be easier since no power source is needed but wasnt sure if it was something that would vary from each car. I couldnt anything on hondas in particular.

But this is much easier, I could try the voltage approach using a usb cable and a connector to verify if I get bored.

Dr. Drivability 03-04-2013 02:44 PM

if you're bored, i gots a front yard that needs mowing and my back yard needs a couple bushes pulled out...and while you're at it the house could use a fresh coat of paint ;)

RobinsonRicer 03-04-2013 02:47 PM

haha, not my idea of killing time :P

RobinsonRicer 03-05-2013 09:58 PM

I'm getting resistance readings from the first two terminals but nothing from the second and third.

PAhonda 03-05-2013 10:05 PM

To determine which pins to measure resistance (or voltage) I would download the 94 shop manual. The common diy thread on top of the gen tech help forum has a link to online shop manuals.

If access is a pain, you can do the measurement at the proper ECU pins.


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