PUtting in My TB right now but have a problem

dannyboy1999 · Jun 23, 2006

OK heres my issue i took off my old TB no problem installed the new one no problem except one thing the sensor that attaches to the side with the two phillips screws.....took some grunt but i broke the torque on the first the second just stripped and i cannot get the bugger off, looks like im going to have to drill it out but i need to run and get a bit and a new screw is it Safe to drive with this sensor off? I started her up and no CHeck engine light so i dont know. What was ford thinging any way it shouldve been a hex bolt with that kinda torque or a combo. Also on the side while im working with my TB how would i tighten up the slack in the throttle cable?

Kilgore Trout · Jun 23, 2006

That is the throttle position sensor and the car is undriveable without it installed and calibrated properly.

The screws that hold it on are know to be extremely tight. Do not feel bad that you had problems with them as many people do.

You must measure the TPS voltage and get it to about .98 volts, the closer to 1.0 volts the better. Do a search for the specific details of doing this.

dannyboy1999 · Jun 23, 2006

Ok ill bust out the meter and check it before i put it back on but first i need to get the screw off of it..... what about tightening up that throttle cable.

Kilgore Trout · Jun 23, 2006

The throttle cable slack is usually removed at the gas pedal end with a piece of bic pen or zip ties.

Also, you need to check the TPS after you install it for a wide open voltage near 1.0 volts. It is usually reported here that this is very difficult to achieve and requires drilling out the mounting holes of the TPS to get enough play in it to get it in the proper position to achieve close to 1.0 volts.

dannyboy1999 · Jun 23, 2006

where am i measureing this voltage at? Ok install TPS measure voltage, if its off loosen the screws wiggle it around and remout?

dannyboy1999 · Jun 23, 2006

throtle closed = .98-1.0 VDC
throtle full open = ?

Kilgore Trout · Jun 23, 2006

Uh, do you have a Haynes manual? I can go look it up in mine I guess...

dannyboy1999 · Jun 23, 2006

read you can check it at the red wires there in a post im not sure ill keep looking

dannyboy1999 · Jun 23, 2006

hmm ok pierce green wire and ground i should have no problem with this its just getting the tps screw out and getting a new one, this vehicle is my DD ill have to ask my neighbor for a drill bit, hes a airframer, im a avionics tech think we can get it done

Kilgore Trout · Jun 23, 2006

Good luck

Smokeurhonda · Jun 24, 2006

Full throttle voltage should be around 4.5volts give or take. Just make sure it's above 4.

dannyboy1999 · Jun 24, 2006

whats the best way to get this stripped screw out i was going to drill it out but im afraid ill mess up the sensor

oxfordgt · Jun 24, 2006

have you tried a small set of vice grips?

dannyboy1999 · Jun 24, 2006

yea and jacked up my finger from it, looks like the only way will be to drill it out

dannyboy1999 · Jun 24, 2006

just on of the things i need to do sat, then back to finishing up the gauges..... then maybe a wash time permitting

javsvt · Jun 24, 2006

If you have a dremel maybe you can give it a little slot. And use a flathead screwdriver to remove it. Good luck!

dannyboy1999 · Jun 24, 2006

sounds like a good idea ill talk to my bud here see what we can do today, just got up so we'll see

dannyboy1999 · Jun 24, 2006

ok drilled outthat damn head and now i got the TPS going on the TB, Went to True Value got some nice hex heads if i ever need to take this bastard off again.. Why didnt ford do that in thefirst place?

dannyboy1999 · Jun 24, 2006

Is 1.0 volts perfect? If so i have 1.0 even or should i adjust back to .99vdc

Mike97gt · Jun 24, 2006

Ok I need to point out that it is a waste of time and your likley to cause damage trying to get The TPS to read .99 volts..

WHY do you need to do that when the spec from FORD is .53-1.27 volts at idle or with the key on engine off. All the PCM cares about is the TP mode and throttle angle rate. and that tiny difference of .99 -1.00 is nothing to the PCM it don't care. as long as your within this spec at idle and over 4.5 volts at wide open thottle and the voltage goes up smooth from idle to WOT then your fine.

we may need a TPS write up and sticky with a lot of cutting and pasting out of the ford powertrain manual.

PUtting in My TB right now but have a problem

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