Throttle position sensor voltage

[barney]

Gooday
I have a 99 jzx100 chaser with a a341e auto transmission and 1jzgte vvti motor
Since fitting APEXI PFC for auto jzx100 my gear changes in the upward direction are slow and sluggish
I have measured auto line pressure with standard and apexi ECU and at stall full throttle it is about 60 psi lower with the apexi
I can't find any way to adjust line pressure with the apexi
I have made up a new mounting for the throttle position sensor so I can now adjust it
In the standard position at idle I get 0.98 volts and at full throttle 3.96 volts (apexi hand controller)
I adjusted this so at idle I had 1.2 volts and flat out 4.3 volts
On a slow drive around the block gear changes were a lot faster and harder
Didn't want to drive hard as I think all other settings would be out from moving TPS
What voltages should I be getting on the apexi hand controller for the TPS
Any other ideas why shifts should be so slow
Have used datalogit to try to find more info in the apexi but software is still being developed for the auto jzx100


All help apreciated

Barney

[PlacentaJuan]

mate i have been looking at the tps signals etc, and from the sensor range chart:

http://mirrors.easynews.com/blackhat...v/hacktv01.avi

the tps resistance will vary greatly and still be whithin limits.

i dont really understand this but i assume the ecu is just measuring the different voltage between closed and wot.

wot can be anywhere between 3.1k and 7.2k

[barney]

mate i have been looking at the tps signals etc, and from the sensor range chart:

http://mirrors.easynews.com/blackhat...v/hacktv01.avi

the tps resistance will vary greatly and still be whithin limits.

i dont really understand this but i assume the ecu is just measuring the different voltage between closed and wot.

wot can be anywhere between 3.1k and 7.2k

Ta
Have been through all posts that I can find on this great site but still cant find any info related to a JZX100 auto with the A341E box
This box is totally electronic controlled
No line pressure cable or vacuum modulator
I have built a JAYCAR pulse modifier kit and will try to install it in the next week or so because the obvious problem (to me) is line pressure
Another ASK
Can someone that has chased the wiring from a AUTO 100 please let me know what pins from the gearbox (auto) connector at the rear on the box go to where at the ECU
If you have a "spare" connector I will buy That way i can buy a male and female extend the leads and look for the bugger that is pulsing

Thanks for any answers
Sorry about the asks but I have problems
Ta
Barney
\
13.9 Townsville

[MWP]

ECUs do not care about the position of the throttle as such... they use the TPS to measure rate-of-change of the throttle position. Ie, how quickly you are moving the pedal.
So changing the position of the TPS shouldnt have made any difference at all.

Also, TPS resistance also does not matter, only the voltage out does which should approx range from 0V to 5V.

[PlacentaJuan]

yes but the resistance will determine the voltage.

so if its measuring the rate of change rather than a direct reading (ie X volts = X % open throttle) then thats why the allowable resistance can vary so much, thanks MWP