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Fitting 70mm t/b & adjusting tps 

 

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 Post subject: Fitting 70mm t/b & adjusting tps
Posted: Thu Nov 13, 2008 10:35 pm 
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Hi Guy's,
Just want some advice on how to adjust the tps,
do i just follow the thread about the base idle and tps?
and would i have to disconnect the negative lead?.
I'm just upgrading the t/b and just want to get it right!!.
Any advice will be appreciated. :)
Cheers,
Jason. 8-)
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Posted: Thu Nov 13, 2008 10:43 pm 
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The sticky on adjusting base idle and TPS covers it all. Good luck
Brett

 

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Posted: Fri Nov 14, 2008 8:08 am 
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TerroristGHIA wrote:
The sticky on adjusting base idle and TPS covers it all. Good luck
Brett
Thanx for that Brett, i thought that might be the case, i just wanted a second or so oppinion. :)
Thanx Jason 8-)
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Posted: Fri Nov 14, 2008 9:46 am 
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If you run into any trouble just let us know.

Biggest problem I had?
I wasnt getting a reading at all... I was using pins with the little plastic balls on the end.
Switched to needles and got readings straight away haha.
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Posted: Fri Nov 14, 2008 10:23 am 
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Stevo wrote:
If you run into any trouble just let us know.

Biggest problem I had?
I wasnt getting a reading at all... I was using pins with the little plastic balls on the end.
Switched to needles and got readings straight away haha.
Thanx Stevo, i was going to use the pins with the balls on top, but then i thought it proberly wouldn't work properly lol!!.
Do you have the two tps 's?, if so did you do it by yourself?, or is it abit tricky?.
Also with the pin trick ,can you use a bit of fencing wire with a sharp point at the end?, will that work? as i haven't got the needle pins in the sticky!!
Any advice will be appreciated, as i'm going to have a go at it today.
Thanx again mate,
Cheers,
Jason. 8-)
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Posted: Fri Nov 14, 2008 10:57 am 
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Hey buddy, Yeah i have the 2 TPS's.

Just take your time and remember that it only needs tiny movements to get it set.

I had to elongate the holes through both TPS's to get the correct reading.

I also could only fit one screw back in as the AU throttle body was a little different.. This is the cheap'a*** dodgy way of doing it, but as long as its done up tight enough it will be fine. (Mine hasnt moved since i have done it).
Id say anything that gives you a reading will be fine, i suppose it just needs good contact, otherwise you will get an incorrect reading, and you will know because it will drive like crap.
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Posted: Fri Nov 14, 2008 11:04 am 
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Most multimeters have sharp points on their probes... I just use that straight in the wires coming out of the tps.

 

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Posted: Fri Nov 14, 2008 11:30 am 
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Scaffy wrote:
Most multimeters have sharp points on their probes... I just use that straight in the wires coming out of the tps.
Thanx guy's i will give that a go soon.
Cheers, Jas.
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Posted: Fri Nov 14, 2008 9:25 pm 
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COBRAED wrote:
Scaffy wrote:
Most multimeters have sharp points on their probes... I just use that straight in the wires coming out of the tps.
Thanx guy's i will give that a go soon.
Cheers, Jas.
Hi guy's,
I got a problem with my revs, after i changed my t/b and adjusted the tps as to the sticky in here, when i stab on the throttle it hangs about 1200rpm and after about 2 seconds it goes back to bout 825rpm,
is 825rpm a good idol or should it be abit lower such as bout 750-800rpm for a auto?.
And with my rev hang what have i done wrong?, do i need to start again? ,
also i didn't check the voltage after i started it , should i have double checked it that way aswell?.
But other than that, its running fine.. :)
Any advice will be appreciated, :wink:
Cheers,
Jason. 8-)
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Posted: Fri Nov 14, 2008 9:40 pm 
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Rev hang will be caused by base idle too high.

Dis-connect ISC and start engine, bring to operating temp and set base idle with idle screw. I think you'd wanna be around 750rpm in neutral.

Turn engine off and connect ISC. Set TPS's to 0.98v with ignition on but engine off.

Start engine and check.

 

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Posted: Sat Nov 15, 2008 7:38 am 
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XH5LWEPN wrote:
Rev hang will be caused by base idle too high.

Dis-connect ISC and start engine, bring to operating temp and set base idle with idle screw. I think you'd wanna be around 750rpm in neutral.

Turn engine off and connect ISC. Set TPS's to 0.98v with ignition on but engine off.

Start engine and check.
Thanx for that advice XH5LWEPN, i will try that today sometime and let ya's know. :)

Jason. 8-)
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Posted: Sat Nov 15, 2008 5:27 pm 
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COBRAED wrote:
XH5LWEPN wrote:
Rev hang will be caused by base idle too high.

Dis-connect ISC and start engine, bring to operating temp and set base idle with idle screw. I think you'd wanna be around 750rpm in neutral.

Turn engine off and connect ISC. Set TPS's to 0.98v with ignition on but engine off.

Start engine and check.
Thanx for that advice XH5LWEPN, i will try that today sometime and let ya's know. :)

Jason. 8-)
Ok guy's, i have done what XH5LWEPN has said to do ,

I have got the right reading 0.98v b4 and after, but i have still got rev hang alittle, when i stab on the throttle.
I have got the AU XR8 t/b thats been bored out to 70mm and a blank EGR spacer, (the same as AU).

I noticed the throttle and auto kick down cable's were about 5-10mm away (towards front of car).
i done the procedure with it connected and disconnected, still no differance.

With the gaskets i made them myself out of gasket paper, i don't know if i have done something wrong there, i made my own b4 with my old t/b and no prob's there.

Anymore advice will be appreciated, it's got me stummped!!! :? .

Cheers Jason. 8-)
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Posted: Sun Nov 16, 2008 1:00 am 
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Throttle body bored out to 70mm???
So what size is the butterfly? Still 65mm?

 

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