TPS ***EEC-III EXPERTS ONLY***

[OneBadLSE]

Need values for EEC-III Lincoln Mark VI . Instead of the circuit running off of a 5V power source, it was said that it runs off a 9V power lead.


PLEASE HELP!!

The year is 82

[85crownHPP]

who says it runs off nine volts??? probe the green (supply)wire and see for yourself.

The actual values arent the important part so much as the smoothness and regularity of its response to change in throttle position.

[87_crown_vic]

i think i need a new TPS in Baby. when i touch the throttle, she bogs down so bad she stalls at least 5 times a day. i push the gas at a stoplight and other cars start going and she bogs and almost or does stall. i need this diagnosed on my car now since it is running better but the stalling is pissing me off. i think i am gonna swap TPS from Deuce to Baby and see if it helps.

by the way....Petemang.....did you get my PM about the LED website?

[OneBadLSE]

who says it runs off nine volts??? probe the green (supply)wire and see for yourself.

The actual values arent the important part so much as the smoothness and regularity of its response to change in throttle position.

Today i scratched an inch ive had for quite a while. I had a feeling my problem with throttle response on my 1982 Lincoln Mark VI was due to a failing TPS.

I got to measure the voltage, and was perplexed to say the least.

Closed position voltage was at 2V! WOT position was at OVER 7 volts! The sweep performed was smooth and direct all the way to 7V's. No deadspots whatsoever.

However, when trying to adjust the voltage i had some interesting things occur.

One of those things were when trying to calibrate it, the voltage at one point went as low as 1.5V. When at that position (that was the lowest it could go. ANYTHING below 1.5V was a deadspot. No matter how much i wiggled it, nothing would happen for it to even go below 1.5V), i proceeded to start the car and give it gas. <

:whoa: I quickly shut the car off and said to myself "ok that didnt sound good"!

When i went back to take a look at the voltage, it was OVER 3.5V at closed throttle!!! :::WTF!:::

Any ideas what could be causing that?????


Thanks in advance,
Len

Here was my original post about what occured on another site...

Here was a response:

YO!

You're messing with an EEC-III system that works on 9 volts reference and not 5. Two to seven may be normal. The sudden jump to 3.5 may be a sign of a bad ground. Start doing voltage drop tests everywhere from the negative post of the battery. All ground circuits should read below 100mV. One of the diagnostic connector pins is the signal return (black wire with white tracer). That is a good indication of the ground circuits' health. Again that should be below 100mV.



Best luck (Or God help you!)



J

[OneBadLSE]

i think i need a new TPS in Baby. when i touch the throttle, she bogs down so bad she stalls at least 5 times a day. i push the gas at a stoplight and other cars start going and she bogs and almost or does stall. i need this diagnosed on my car now since it is running better but the stalling is pissing me off. i think i am gonna swap TPS from Deuce to Baby and see if it helps.

by the way....Petemang.....did you get my PM about the LED website?

Thats the kind of bog i get sometimes when im at a stop light and come on it. When im driving occasionally i will get a bog similar to what you're experiencing.

EDIT: What happens on WOT??? Do you get a pop from the air filter?

[Grand Marquis GT]

i think i need a new TPS in Baby. when i touch the throttle, she bogs down so bad she stalls at least 5 times a day. i push the gas at a stoplight and other cars start going and she bogs and almost or does stall. i need this diagnosed on my car now since it is running better but the stalling is pissing me off. i think i am gonna swap TPS from Deuce to Baby and see if it helps.

by the way....Petemang.....did you get my PM about the LED website?

How about we post this in another thread, and not a technical thread, unless you're helping the guy?

[OneBadLSE]

How about we post this in another thread, and not a technical thread, unless you're helping the guy?

No hijack aleart either

[85crownHPP]

replace the thing!

[87_crown_vic]

sorry that i was making an explanation of how i am having almost the same problem. that way if i get my problem solved or Vice Versa, we can exchange info.

[85crownHPP]

dont wory about posting your experiences with a simmilar problem, thats fine.

Tom must be working of little sleep

[gadget73]

Unfortunately I can't find any reference specific to EEC III stuff. Its pretty much a great mystery as far as it's operation. You might just need to get the factory service manual for it and check into it. I could find you all the EEC IV stuff you'd ever want but EEC III CFI is not exactly a well known animal.

[OneBadLSE]

Holy $hit. I was affraid of that. I'm gonna try my friends ALLDATA to see if the specs are known at all. If not, im going to make a call to a NE ford rep. Now, im pissed!

Unfortunately I can't find any reference specific to EEC III stuff. Its pretty much a great mystery as far as it's operation. You might just need to get the factory service manual for it and check into it. I could find you all the EEC IV stuff you'd ever want but EEC III CFI is not exactly a well known animal.

[OneBadLSE]

replace the thing!

Useless replacing it. If i replace it, i cant calibrate it.
This sucks.....

[85crownHPP]

not useless... even if you cant calibrate it, replacing one with choppy respnse or dead spots will still help.

Every TPS I have replace has been close enough to its base voltage and ran fine without adjusting anyone. Replace it!!!!!!

If the at-idle voltage reading now is around 1 volt, just set the new one to one volt!!!!

[OneBadLSE]

not useless... even if you cant calibrate it, replacing one with choppy respnse or dead spots will still help.

Every TPS I have replace has been close enough to its base voltage and ran fine without adjusting anyone. Replace it!!!!!!

If the at-idle voltage reading now is around 1 volt, just set the new one to one volt!!!!

Geeze, dont have to yell at a brotha...