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Throttle position sensor 

 

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 Post subject: Throttle position sensor
Posted: Fri Sep 15, 2006 9:47 pm 
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Location: Swan Hill
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I have discovered something very interesting.... My car har been playing up ever since i bought it 4 years go EL XR8.... I recently blew it up and got it re built and it ran liike a dog. I just bought a throttle body off ebay to suit with tps sensors. I noticed they have 2 tps sensors?? is this normal...???? mine only had one which was dodgy. Ever since fitting the new sensor it is great My question is do i need to attach the second TPS and what does it do???

Thanks Guys

Mattoo
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Posted: Fri Sep 15, 2006 10:22 pm 
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Second one is for auto.

 

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Posted: Fri Sep 15, 2006 10:36 pm 
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Thanks heaps for that.... But why if I got a manual do i have a spear plug that it fits???? Should i plug it in any way.... Why does an auto need it??? Sorry for sooo many question I am just glad to have my baby back...
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Posted: Fri Sep 15, 2006 10:45 pm 
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Two options:manual and auto use same wiring loom or car was auto and been converted to manual.Second TPS not needed as it bumps up the revs a bit in autos when you put it into gear so they dont stall.

 

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Posted: Sat Sep 16, 2006 10:33 am 
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You guys are not confusing the EGR for a second TPS are you?
EGR is the on the front side of the throttle body. You have a spare plug when the EGR is removed and blanked off.

 

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Posted: Sat Sep 16, 2006 5:21 pm 
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Dont plug it in mate, you would better serve time giving your car a wash as it will do jack poop. The 2nd one is there if its an auto.

I've got 2 but I need the auto one plugged in as mines still got the tranny ecu to fool the EECIV. If yours was manual from the factory or converted with a manual EECIV, then you will not need the 2nd TPS.

 

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Posted: Sat Sep 16, 2006 8:07 pm 
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What would happen if say you had the wrong one pluged in??? as in you have a manual so theirs 2 plugs 1 is for the auto tps and 1 just the tps, what would happend if they got switched around.
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Posted: Sat Sep 16, 2006 9:00 pm 
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hi
they both work the same when my xr8 stuffed up it wouldnt idle properly.
so to make it drivable i swaped them around and the engine ran fine but the auto didnt change gear properly because the 2nd tps was stuffed..
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Posted: Mon Sep 18, 2006 4:18 pm 
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you can wire them together

 

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Posted: Tue Sep 19, 2006 11:37 am 
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The plugs on them are slightly different so you cant connect the wrong sensor to the wront plug.. With my faulty one it made the car run like crap between 1000 rpm and 2000 rpm. I couldnt believe the difference it made.. Now it is not ideling right, it goes up and down.. Bloody thing.
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Posted: Tue Sep 19, 2006 4:07 pm 
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thomo1981 wrote:
The plugs on them are slightly different so you cant connect the wrong sensor to the wront plug.. With my faulty one it made the car run like crap between 1000 rpm and 2000 rpm. I couldnt believe the difference it made.. Now it is not ideling right, it goes up and down.. Bloody thing.


hmm
on my eb they were the same...
i dont know about other models??
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Posted: Wed Sep 20, 2006 10:10 am 
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yes ive herd of people ditching one and just parralleling up the wires, suppose to work fine

 

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Posted: Wed Sep 20, 2006 11:18 am 
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Each TPS has the same connector so it doesn't matter which one goes where. One goes to the Trans control unit and one to the EEC. If you have a manual; only one is required so take one of them off and use shorter screws to hold the remaining one on.
I have described in other posts how to set the EEC TPS for best throttle response.

Pete.
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