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Location:
gladstone
Registered:
June 2004
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7MGTE TPS VOLTAGE OUTPUT NEEDED
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Sun, 24 April 2005 06:33
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Hey guys i am after the voltage output on the throttle positioning sensor on the 7mgte. I have worked out both wires on the tps harness side and my larger ford 3 inch throttle body that has three wires. But however the voltage outputs are somewhat of a difference some i need to put some resistors in place. I just need to know
Voltage output on the tps plug harness side?
And ohm's output on the tps itself. (at closed and open throttle).
If anyone could help me it would be great.
New engine and i have a problem wiring it up.
Thanks in advance
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: 7MGTE TPS VOLTAGE OUTPUT NEEDED
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Sun, 24 April 2005 06:35
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is it a switch or a variable type?
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Location:
gladstone
Registered:
June 2004
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Re: 7MGTE TPS VOLTAGE OUTPUT NEEDED
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Sun, 24 April 2005 06:54
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Pretty sure it is a variable type
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Location:
sydney
Registered:
March 2003
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Re: 7MGTE TPS VOLTAGE OUTPUT NEEDED
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Sun, 24 April 2005 07:51
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just wire it up and the voltage should be around .4 to .7 volts
i would not go puttin resistors it will adjust the settings at one spot but then might stuff the settings everywhere else
most tps voltages are similar i dont know what yr prob is
ford tps's are used on shitloads of aftermarket ecus and they work the same
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Location:
Melbourne
Registered:
May 2002
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Re: 7MGTE TPS VOLTAGE OUTPUT NEEDED
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Sun, 24 April 2005 08:33
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please somone tell me if im wrong but isnt it just a little easyer to put the 7m tpos back on rather then try and re-invent the wheel???
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Location:
Wollongong
Registered:
November 2004
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Re: 7MGTE TPS VOLTAGE OUTPUT NEEDED
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Sun, 24 April 2005 09:48
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| Allan wrote on Sun, 24 April 2005 18:33 |
please somone tell me if im wrong but isnt it just a little easyer to put the 7m tpos back on rather then try and re-invent the wheel???
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Yes...
Also, resistors don't change voltage, they change resistance... So You'll stuff the readings up on the ECU...
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Location:
gladstone
Registered:
June 2004
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Re: 7MGTE TPS VOLTAGE OUTPUT NEEDED
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Sun, 24 April 2005 13:06
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Well if you know it all, you would know the the ford throttle body turns clockwise and the 7mgte one turns anti clockwise. So that is no help as i have already looked at modifying the standard one.
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Location:
Brisbane
Registered:
February 2003
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Re: 7MGTE TPS VOLTAGE OUTPUT NEEDED
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Sun, 24 April 2005 15:06
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TPS like the ford and 7mgte unit are - if they are 3 pin - pretty much universal in behaviour... but..
if the direction of the ford throttle is opposite to the toyota, simply swap wires 1 & 3 in the tail wires of the toyota tps - this way you don't worry about trying to calibrate a different TPS
fwiw: megasquirt has in it's tuning software a simple TPS calibration tool - it just takes two readings (WOT and shut) and that's all you need to use a different TPS.
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Location:
Melbourne
Registered:
May 2002
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Re: 7MGTE TPS VOLTAGE OUTPUT NEEDED
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Sun, 24 April 2005 22:34
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| overboostin007 wrote on Sun, 24 April 2005 23:06 |
Well if you know it all, you would know the the ford throttle body turns clockwise and the 7mgte one turns anti clockwise. So that is no help as i have already looked at modifying the standard one.
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extend the shaft on the other side of the throttle body
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Location:
gladstone
Registered:
June 2004
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Re: 7MGTE TPS VOLTAGE OUTPUT NEEDED
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Mon, 25 April 2005 00:59
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can't really extend the shaft on the other side as that is where the throttle cable links up to. No mounting point as it moves.
AS for the output on the ford one. I have tried putting a 20 pot variable resistor in place to change the input voltage therefor cahnge output within reason. But have not had success yet.
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Location:
sydney
Registered:
March 2003
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Re: 7MGTE TPS VOLTAGE OUTPUT NEEDED
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Mon, 25 April 2005 01:06
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i cant see what ypour problem is
sounds like u are goin to technical with what the job requires
nearly every tps runs about .5 volts closed and 4 volts fully open
put the black wire to earth which is brown on toyota loom
now u have 2 other choices
put it one way then on the signal wire u will get .5 volts then up to 4 vots when openin throttle
if it is wrong then u will get 4 volts at closed and .5 volts fully open
who cares what resistance and shit is
what voltage goes is depends what comes out
only prob might be gettin to much voltage say over 4 at full throttle
just wire it up and see
make sure u have 5 volts input and not 12
i have done many aftermarket ecus with ford tps sensors and its not as complicated as what u make it
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Location:
gladstone
Registered:
June 2004
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Re: 7MGTE TPS VOLTAGE OUTPUT NEEDED
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Mon, 25 April 2005 01:35
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that's what i needed to know what the values should be on open and closed and we had them all about faced. Now we should be right thanks mate cheers
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