What is the best way to set the tps sensor?

Topic: What is the best way to set the tps sensor? (Read 4280 times) previous topic - next topic

What is the best way to set the tps sensor?

Reply #15 – May 07, 2010, 05:19:10 PM

I have no pics of tables as they are in the EEC s rom memory.
To dhow you would not work very well as my enine is currently apart having some work done to it.
That being said I would have to goto my standalone and take a pic,then take a seperate pic of a voltmeter and the voltage as my standalone shows idle,part,part1,wot etc not voltages.
I have determine the idle voltage by checking my standalone for idle and then setting thtps voltage then rechecking the standalone.
I don't have a tweecer but it shows you all the tables on your pc when you program it.
All EEC,s have voltage tables for idle,part and wot you guys know that, otherwise what would be the point of a tps?

What is the best way to set the tps sensor?

Reply #16 – May 07, 2010, 10:08:05 PM

So what your saying, is that the PMS has been programed that way. No wonder yours is different. Also, makes everything you said in this thread useless.

"PMS relies on absolute minimum TPS value for idle however, it doesn't mention how it deals with the normal voltage variance you will see from temperature/voltage changes....... my guess is that there is some "leeway" built-in otherwise, it will render it not a good system for normal day-to-day use.....IMHO.

Nevertheless though, the system does not rely on the mythical .9999 vdc setting, keep in mind the system is "programmable" besides, even the example screen used in the user's manual is an obvious "myth buster" for this topic. Check it out."

What is the best way to set the tps sensor?

Reply #17 – May 08, 2010, 12:02:28 AM

Whatever man, this is once again why i did not want to post in this thread.
The pms does not rely on a minimum,where do you get your info????????????
No one listens everyone thinks there right.
What you said was useless if you can't get the fact the the eec has tables then your just plain ignorant and i'm done posting in this thread.
I don't need comments like that from you or anyone else.
Just trying to state some facts here but you don't get it.
Bottom line,you set your car up wrong and i'll set mine up right, plain and simple.

What is the best way to set the tps sensor?

Reply #18 – May 08, 2010, 01:28:44 AM

We told you how the ECU works and that's indisputable fact - nobody should be upset at learning something new.

What is the best way to set the tps sensor?

Reply #19 – May 08, 2010, 03:08:22 AM

funny, we have to get this far into a thread for you to tell us your situation does not apply. PMS essentially changes everything. It has a separate setup for the TPS. It does not use the stock settings for the car.

And just so you know, my car is not set the way I have listed. Well it is, but I have a broken vacuum hose that I am too lazy to fix. Car idles at 1000 RPM in park and 800 RPM and does not fluctuate. My car might not even be in the idle strategy. I can't even remember if I checked the voltage on it. I did swap it to a different one after finding dead spots while moving around the throttle.

I have no driveablility problems, and have gotten over 30 MPG over an entire tank of gas before. Its fun driving over 500 miles to a tank. To bad I still had to fill up twice a week. Doesn't really seem to matter to me if I am hitting the idle strategy or not.

BTW, I didn't mean to say useless, I just meant to say that it does not apply to the discussion because you have other parts controlling the idle other then the stock type of setup. I just didn't want someone else reading this that it might matter to, being led in the wrong direction.

What is the best way to set the tps sensor?

Reply #20 – May 08, 2010, 09:40:17 AM

Quote from: Haystack;321090

you have other parts controlling the idle other then the stock type of setup. I just didn't want someone else reading this that it might matter to, being led in the wrong direction.

Why wasnt that posted in the first thread, if thats true?:D

What is the best way to set the tps sensor?

Reply #21 – May 08, 2010, 11:20:08 AM

Quote from: Haystack;320969

Essentially, there is no reason for the TPS to even read all the way up to 5v (about where it should stop at) because your car is already floored at 3.5v.

The TPS reads beyond ~3.5V because the TPS is also a rate sensor. The rotational velocity of the throttle blade(s) is used to help to correct A/F ratio during transient events (quickly increasing throttle).

Not sure if the old Ford strategies use it, but one reason you keep the valid senor range away from the 0 and 5 voltage extremes is to detect open/closed circuits. If the Ford ECU sees 0V, it can assume the throttle has an open circuit. If it sees 5V (or whatever the Vref is), it knows the circuit has a short. Throttle-by-wire does use these strategies.

What is the best way to set the tps sensor?

Reply #22 – May 08, 2010, 01:07:39 PM

TAPMIN and TAPMAX are 0.2V & 4.95V respectively - these are the limits beyond which the ECU considers the TPS to be shorted or open circuit (again, respectively.)

What is the best way to set the tps sensor?

Reply #23 – May 09, 2010, 11:21:23 AM

Odie,

Was just wondering if you figured out how to set your TPS? Lots of info to sift through in this one.

Darren

What is the best way to set the tps sensor?

Reply #24 – May 09, 2010, 01:52:32 PM

You don't need to set it, as long as the voltages are good. Re-read my response here. Unless you have changed the computer setup, you don't have to set it. If it falls outside of the supplied ranges or does not increase steadily, you should replace the sensor, or try to "tune" it.

What is the best way to set the tps sensor?

Reply #25 – May 09, 2010, 02:09:37 PM

OK, just to be complete in my investigation, I D/L the 87 Turbocoupe bin AND the 88 Turbocoupe bins and looked at how the TPS is treated.

It's exactly the same as in later years, except the range for closed throttle is 0.72V - 1.33V.

There should be no issue having these above 1V either, unless, as I said above, you turn the screw in while the engine is running, then it might stay in Part Throttle mode until you shut it off and restart it.

What is the best way to set the tps sensor?

Reply #26 – May 09, 2010, 02:34:05 PM

I do understand what you guys are saying but everyone seems to have what they believe is an acceptable range. I believe a person could now read through all the booger flicking and hair pulling and find what they needed. I would say that people have come across a couple of TPS that were out of the acceptable range and needed to be moved to get them into that range. Granted this would not be the norm but I would think it does happen.

I never saw another response from Odie and one thing I think we would all like to know (some of you may from previous threads) what year car, motor, and processor the OP is using. It appears that there are some different ranges for different processors/engine combinations? If so I would still say that setting the TPS voltage in the range of 0.90 to 0.95V would work on almost any combination. Would that be correct?

Darren

What is the best way to set the tps sensor?

Reply #27 – May 09, 2010, 03:12:41 PM

essentially, as long as the car idles, it is setup right. There really isn't any right or wrong as long as those conditions are met that I first posted. If your car drives fine and isn't throwing a TPS code, you probably did it right and won't have to worry about it for some time.

What is the best way to set the tps sensor?

Reply #28 – May 09, 2010, 05:18:45 PM

A voltage in the 0.75 - 1.2V range would work for any combination that I am aware of.

What is the best way to set the tps sensor?

Reply #29 – May 09, 2010, 06:37:23 PM

Now that that OP has a voltage range all that is left to do is to check his setup to see if it falls within this range. Since that has not been hashed out on how to do it and we don't know what the year of the car & motor size it is kinda hard to tell him which wires to probe for the voltage but my guess is they are all black, orange, & green.

This site is very good on tech articles and I thought this would be a good read for the OP. It backs up a lot of what the guys are saying:

http://www.veryuseful.com/mustang/tech/engine/Mustang-TPS-FAQ.html

All that is left to do now is to check the closed position voltage range, check the TPS for smooth dead spots, and check wide open throttle voltage range. If it has a problem with any of these buy a new one, check it, and hopefully that will solve the TPS problem.

Darren