Probable Error in a 'Setting the TPS' thread
02-12-2008, 11:49 PM
#1
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Location: Washington, Seattle
Posts: 551
Probable Error in a 'Setting the TPS' thread
This is a thread dedicated to a locked thread contained in the '!!!Tech Articles!!!' thread, regarding Adjusting the TPS
https://mustangforums.com/m_969165/tm.htm
The only post in the thread is a quote from the Kirschenbaum book.
(note, this book seems to have some errors!!!)
Below is the contents of the above noted thread...
(note that the parts I have issue with are in BOLD)
For some real tech on the TPS check these...
http://www.my5oh.com/forum/viewtopic.php?p=144#144 (insert my5.0.com here)
http://www.veryuseful.com/mustang/te...g-TPS-FAQ.html
Bottom line....
Any tps setting between .6 to 1.1v is acceptable. (numbers vary slightly depending on who you ask, but if you aren't throwing a tps code, then you'reok)
There is no performance gain from adjusting the tps voltage between.99999v to 1.00000v
A voltage of 4.6 to 4.8v is not required to reach WOT...
WOT/OL is triggered when the TPS voltage is 2.7v above the base/idle voltage.
For example,
If your idle tps voltage is .8v, then you will hit WOT/OL at 3.5v
If your idle tps voltage is 1.05v, then you will hit WOT/OL at 3.75v
The Kirschenbaum book is more disappointing every time it's quoted....[:@]
If you are looking for a book that covers the Ford ecu's, then look into the author Probst... [8D]
Hopefully this will spawn some interesting discussion!
[sm=icon_cheers.gif]
jason
https://mustangforums.com/m_969165/tm.htm
The only post in the thread is a quote from the Kirschenbaum book.
(note, this book seems to have some errors!!!)
Below is the contents of the above noted thread...
(note that the parts I have issue with are in BOLD)
Throttle Position Sensor
"The throttle position sensor is housed on top of the throttle body. This rotary-potentiometer-based device sends a voltage signal to EEC to indicate the position (and rate of change of position) of the throttle shaft. Ford service literature shows that a five-oh's throttle position sensor's signals range between .6 and 4.585 volts, the lower number indicates that the throttle is closed and the higher signaling wide-open throttle. With the engine off and the ignition key switched on, a digital voltmeter connected across the sensor's wires should read .85-1 volt. At idle, a reading of .98-1 volt is considered desirable for performance service. A TPS setting of 1 volt at idle produces 4.6-4.8 volts at wide-open throttle.
Adjustment involves loosening the pair of screws that attach the sensor to the throttle housing and rotating the sensor until the meter reading is corrected. The meter's positive lead connects to the sensor's green wire and the negative lead goes to the black wire. Due to variations in production equipment, the holes in the sensor housing may require elongation before it becomes possible to obtain the desired reading. For reference, the 1994-1995 TPS uses different-colored wires, and the hold-down holes in the sensor housing are not accessible as on previous models. In July 1989, Ford issued a Technical Service Bulletin covering hard-to-remove throttle position sensor mounting screws."
Courtesy of Al Kirschenbaum
The Official Ford Mustang 5.0 Technical Reference & Performance Handbook
"The throttle position sensor is housed on top of the throttle body. This rotary-potentiometer-based device sends a voltage signal to EEC to indicate the position (and rate of change of position) of the throttle shaft. Ford service literature shows that a five-oh's throttle position sensor's signals range between .6 and 4.585 volts, the lower number indicates that the throttle is closed and the higher signaling wide-open throttle. With the engine off and the ignition key switched on, a digital voltmeter connected across the sensor's wires should read .85-1 volt. At idle, a reading of .98-1 volt is considered desirable for performance service. A TPS setting of 1 volt at idle produces 4.6-4.8 volts at wide-open throttle.
Adjustment involves loosening the pair of screws that attach the sensor to the throttle housing and rotating the sensor until the meter reading is corrected. The meter's positive lead connects to the sensor's green wire and the negative lead goes to the black wire. Due to variations in production equipment, the holes in the sensor housing may require elongation before it becomes possible to obtain the desired reading. For reference, the 1994-1995 TPS uses different-colored wires, and the hold-down holes in the sensor housing are not accessible as on previous models. In July 1989, Ford issued a Technical Service Bulletin covering hard-to-remove throttle position sensor mounting screws."
Courtesy of Al Kirschenbaum
The Official Ford Mustang 5.0 Technical Reference & Performance Handbook
http://www.my5oh.com/forum/viewtopic.php?p=144#144 (insert my5.0.com here)
http://www.veryuseful.com/mustang/te...g-TPS-FAQ.html
Bottom line....
Any tps setting between .6 to 1.1v is acceptable. (numbers vary slightly depending on who you ask, but if you aren't throwing a tps code, then you'reok)
There is no performance gain from adjusting the tps voltage between.99999v to 1.00000v
A voltage of 4.6 to 4.8v is not required to reach WOT...
WOT/OL is triggered when the TPS voltage is 2.7v above the base/idle voltage.
For example,
If your idle tps voltage is .8v, then you will hit WOT/OL at 3.5v
If your idle tps voltage is 1.05v, then you will hit WOT/OL at 3.75v
The Kirschenbaum book is more disappointing every time it's quoted....[:@]
If you are looking for a book that covers the Ford ecu's, then look into the author Probst... [8D]
Hopefully this will spawn some interesting discussion!
[sm=icon_cheers.gif]
jason
for some responses..... if any of you guys out there think it's not a myth...... please explain why....... good post "dude"
03-19-2008, 02:36 PM
#7
2nd Gear Member
Join Date: Dec 2005
Location: Washington
Posts: 270
RE: Probable Error in a 'Setting the TPS' thread
I quoted that book and I agree with you. There is no performance gain from getting it right at .999.As long as the TPS is within it's acceptable voltage range, .6V - 1.1V, you should have no problems and will gain nothing from adjusting it.
I think the information you posted and the links should be added to the tech article. No harm in sharing other people's knowledge.
I think the information you posted and the links should be added to the tech article. No harm in sharing other people's knowledge.
03-20-2008, 11:55 AM
#8
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Join Date: Jan 2008
Location: Pennsylvania
Posts: 580
RE: Probable Error in a 'Setting the TPS' thread
Honestly "DUDEBOY"....... I think no gives a crap how much u know about a certain topic.. NO ONE's trying to prove nothing on this thing.... its just a damn forum and it serves a purpose....
I think you go way overboard and can see why u got kicked off this thing... u cause trouble.
but i'll agree with u on a better note, except if your cars not running right... it won't make as good of a pass.
I think you go way overboard and can see why u got kicked off this thing... u cause trouble.
but i'll agree with u on a better note, except if your cars not running right... it won't make as good of a pass.
03-20-2008, 01:47 PM
#9
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Thread Starter
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Posts: 551
RE: Probable Error in a 'Setting the TPS' thread
ORIGINAL: cholericfc
Honestly "DUDEBOY"....... I think no gives a crap how much u know about a certain topic..
Honestly "DUDEBOY"....... I think no gives a crap how much u know about a certain topic..
Count how many threads have been started which discussed 'Setting the TPS'
I'll be kind and only ask you to count back for the last 30 days...
(the point here is that the subject keeps coming up)
It seems like new guys are reading through the 'Tech Stickies' and getting the wrong idea about how the ecu uses the tps.
Sorry if you think I am arrogant or if I have given the impression that I'm 'showing off'
I'm just trying to help the members of this forum...
ORIGINAL: cholericfc
NO ONE's trying to prove nothing on this thing.... its just a damn forum and it serves a purpose....
NO ONE's trying to prove nothing on this thing.... its just a damn forum and it serves a purpose....
Members of this forum feel this is a place to give and recieve advice...
In reality, the purpose of a Tech Forum should be to share Proven Technical Information... and the spreading of BS should be highly discouraged...
ORIGINAL: cholericfc
I think you go way overboard and can see why u got kicked off this thing... u cause trouble.
I think you go way overboard and can see why u got kicked off this thing... u cause trouble.
Then I will wear that label proudly. [8D]
(I've been called worse things on the forums...
)
ORIGINAL: cholericfc
but i'll agree with u on a better note, except if your cars not running right... it won't make as good of a pass.
but i'll agree with u on a better note, except if your cars not running right... it won't make as good of a pass.
but honestly, I have no idea what you're getting at here [&:]
But anyway...
Do you have any thoughts to share on the topic of this thread? (setting the tps)
While I do enjoy talking about myself.... that was not the intention of starting this thread
jason
03-20-2008, 02:17 PM
#10
5th Gear Member
Join Date: Jan 2006
Location: Puerto Rico
Posts: 3,926
RE: Probable Error in a 'Setting the TPS' thread
..... cholericfc.... what is the purpose of a forum?.... misguide?Jason is not trying to prove anything about him...... he's just
TRYING TO HELP by correcting some misinformation....... or would you believe me if I say a turbonator really provides a 50 HP increase?.....
In the words of a great resource regarding EEC-IV logic and electronics, who has nothing to prove to anybody......
Ahh, RICER MODS NEVER DIE!
LONG LIVE THE RICERS!!!!!!
LONG LIVE THE RICERS!!!!!!