TPS voltage RB25DET

[BASHERnissan]

Hi guys my TPS voltage is reading over 2v at idle.  My Haltech ECU is reading around 40% throttle position at idle also which is really strange. Note the actual throttle position sensor is brand new… 

 

anyone have any experience with this or know how to calibrate it on Haltech ? 

[GTSBoy]

19 minutes ago, BASHERnissan said:

how to calibrate it on Haltech

It's not really a calibration issue, if the voltage is really at 2V. If the voltage is 2V, then that's what the TPS is putting out, and the Haltech is seeing that and 2V is about 40% open (you know, between 0.45v being closed and something close to 4.5V being fully open).

So, that would suggest that the TPS is maladjusted, on crooked, something something something. Or a wire problem.

[BASHERnissan]

Thanks for that mate always a good help

[Dose Pipe Sutututu]

go look at the live data, and slowly open and close the throttle, if it is moving in a linear fashion, just do a re-calibration.

OR if you really want to, adjust the TPS position so it's under 1V (no need to be bang on a 0,45V, it's not a stock ECU), then recal.

Job done, rip skids, post it here.

[BASHERnissan]

So just calibrate whatever voltage the closed position and full throttle position is and check linearity ? Sounds good to me 

[GTSBoy]

43 minutes ago, BASHERnissan said:

So just calibrate whatever voltage the closed position and full throttle position is and check linearity ? Sounds good to me 

Provided that what you see makes sense and is not "linear" between, say 1.9 and 2.1 volts and that's the whole range you get. You still need it to be doing one end of the 0-5v range at one end of travel, and the other end of the 0-5v range at WOT.