Calibrating the Voltage on the TPS

**vinnY** · 25-03-2010 11:06 AM

with the tps set to 4.5v@WOT i could only get the idle voltage up via the throttle stop screw

double checked my manual and it appears my current figures are within range anyway so i'll run with that
just putting it out there that 0.48v@CT and 4.5v@WOT isn't the only figures it should be at

**beeza** · 25-03-2010 11:11 AM

Cheers Vin! Interesting.

U couldn't get the idle down via the idle screw?

**vinnY** · 25-03-2010 11:15 AM

nah idle did squat for me
admittedly i am running crome and idle is set to 1k because of the buddyclub cams, it will idle but if i tap the throttle and the idle screw is screwed too far in the revs drop too low and will almost stall before it picks up again

**beeza** · 25-03-2010 11:23 AM

Gotcha.

It seams like your set up yeilds different voltages but saying that,there's that print out from the manual...

That's a MASSIVE range of voltages on there...

When U got the final voltages,how did U come to them? It's within that range but certainly a certain setting will yeild greater results.Strange.

What car/engine is your's Vin?

**vinnY** · 25-03-2010 11:28 AM

yeah no idea, did some reading on h-t and it appears some of the guys favour 0.5v@CT and 4.5v@WOT mark so i figured if i have the CT set correctly as long as the WOT is still within range it's okay

just running an ek b18c7 tuned on crome

**beeza** · 25-03-2010 11:48 AM

Cheers Vin,very interesting.I would like to know more about that print out in the manual,I mean everything I have learnt about it is that when it's spot on,it goes great guns,seems strange they give a big range like that.

Hmmmmmmmmmm

**vinnY** · 25-03-2010 11:51 AM

yeah weird stuff, surprised no one else has run into this trouble
then again i seem to be the only one running a non stock throttlebody in this thread

**beeza** · 25-03-2010 12:10 PM

Well that manual gives a 'range' but not an optimal setting,and there's gotta be one! right?! and I'm sure they are 0.48V and 4.5V.

U have 0.5V and 4.72V,so there's enough range there for the above voltages.

I had to loosen off my 'kick down cable' to gain some more range of voltage.Maybe try tightening that cable up a bit?? (if ya have one)

Hard without the car here...

**vinnY** · 25-03-2010 12:17 PM

nah that's the thing, i can adjust it to 0.48v and 4.5v but it just ends up with my throttle body opening too much
same thing with tightening the throttle cable, all it would do is open up the throttle plate anyway