Hey guys, well i swaped my car from carb to TPI(HSR) and my codes said that there was an error in my TPS so i just went and bought a new one and what happened was the 2 bolts/screws holding it on broke off clean, so i drilled new holes just ahead of them(well my father did) and i bolted in on there, im not sure if thats why im having this problem but whats happening is, i bought a volt meter and im not sure if it has the right settings on it but i see "VDC" and 2-20-200-600 and it has all kinds of other settings, well i prob the sensor and it just says .01 the most or itll go to .00 . im not sure what im doing wrong or what not but maybe i just need a new TB but the car runs fine down accelerating but not if i just hold it at one speed it kinda bucks and the TPS is the only code iv got and iv checked everything else such as fuel pressure and cleaned and tested the injectors, everything, changed wires plugs ESC module, ignition module, every possible thing that i could do. but anyways im not sure what the problem with this is but i need help quick, i want to take it to the track this sunday but who knows..... thanks for all the help in advance.:hail:

 

the TPS does need to be in the right place, mounting it like that throws it way off. it needs to be around 0.50 volts at closed throttle.
most multi meters have an auto range setting on them, but not knowing what meter you have, from what you said about the settings on your volt meter, you want your meter set to something like 0- 2 volts DC to read the closed TPS voltage. what reading do you get at full throttle? you will need the 2-20 volt DC setting to read it. it should read around 4 volts or higher.

 

thats the thing, it doesnt change when i go to WOT but my brother pointed out that there is 3 plugs on it for the wires to be pluged into, one says something weird below it like "V (some horse shoe looking symbol)mA" and the one next to it says "COM" and the other "10A" so which ones do i use for that. it says next to the first one "MAX DC 600V AC 600V" and then next to COM or maybe its next to 10A it says "MAX 10A MAX 500V DC/AC" im not used to using these meters but i know i can figure it out somehow, if anyone knows the settings that have to be used let me know. on this meter it has "AC V" "DC V" "DC mA" "hFE" and "Resistance(with the horse shoe looking thing underneath it)" and near all these most of them have incriments of 2-20-200-600 or some of those numbers.

 

Hope this helps:
http://www.iroczone.com/techarttpsadj.html

 

iv got that on my favorites, it didnt help me.....i dont know why..maybe im an idiot

 

I think I'm the one that gave it to you...LOL.
Sorry, check with trickster, he could probably help you.

 

The TPS connector has small letters molded in to it on one side, "A, B, & C" for each connector pin.

On my 88' the wire colors are black, blue, & grey, respectively. All 3 come from the ECM.

A is Black ECM ground, not engine ground, there is a difference.
B is positive, but it's amplitude is determine by the position of the throttle with respects to ECM ground.
C is +5volt reference at all times.

Note:
Ignition switch in key on/engine off position to measure and adjust.
If you don't have 5volts at wire "C", wire "B" will be zero volts.
Most new meters are auto ranging so you need to wait for it to find the range and settle down before you accept the reading.

 

ill have to check that tomorrow. but its a new sensor so i doubt its that, but i dont know ill fill you more in tomorrow when i test the other wires

 

I have had trouble with setting TPS as well. First thing is mount the sensor where it belongs, if you don't the wiper arm on the TPS will probably not move properly or bind, NOT GOOD. Just because the sensor is new doesn't mean its good, I picked up new TPS from AC, brand new out of box JUNK!! I could not believe the quality, just looking at the sensor pissed me off as to how cheap of a plastic design it was, it was something else. I put it aside, took my old sensor, worked it back and forth, cleaned it with carb cleaner, put it back on car. Adjusted the vdc setting to .54vdc, checked that it was over 4 vdc at WOT. Also varified that it was smooth and steady when the throttle was opening, no flat spots. Varified minimun air flow was set, checked idle RPM, and test drove the car. Noticed some jerky responces from throttle, f'ed around with the TPS, found that I had over tightened the retaining screws on the sensor which it didn't like at all. Problem solved. If you have not looked a the articles in the tech section, do so. They are the best for helping set basic tuning items. Good luck, take your time, use the info to get the sensors in the ball park, teak them alittle will you drive to get the best responce/feel for your engine and setup. Worked for me..

 

The "com" on your meter is for common, plug the black lead into it and then connect the end of the probe to the negative post on the battery or any other part of the metal frame. Plug the red meter lead into the hole marked "V" for voltage. This is for AC or DC voltage. Turn the selector switch to 2 volt range. Make sure the selector has --- lines for reading DC voltage. The "~" symbol is for AC voltage only. Connect the red probe to the center wire on the TPS. At idle it should read .54 volts DC. You have move the center off slightly by moving the TPS location, but it could possibly work enough to make it drivable. As you press the pedal the voltage should increase to about 4 volts. You'll have to switch to the 20 volt range to see this change.

 

wow thanks for the input, ill be checking that in the morning before i head to the track.....even tho its not running 100%.