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Old 10-05-2011, 12:58 PM   #1
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setting tps

Trying to reset base timing and idle. While trying to set my tps the voltage will not go down past 1.2 volts. I know it needs to be set at around .95 does this indicate a bad sensor or is there something else going on.
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Old 10-05-2011, 02:33 PM   #2
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Re: setting tps

get it as close as u can , or try this old trick : take a file and open up the slots a hair so you can move it some more ....
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Old 10-05-2011, 03:02 PM   #3
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Re: setting tps

sorry, guess I should have been more specific. With the TPS off the throttle body, so all spring pressure inside the sensor is off, the voltage still doesn't drop below 1.2v.
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Old 10-06-2011, 12:44 AM   #4
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Quote:
Originally Posted by Otlaw80
sorry, guess I should have been more specific. With the TPS off the throttle body, so all spring pressure inside the sensor is off, the voltage still doesn't drop below 1.2v.
You might try moving it back some to see if it's just not moving back enough. If it still reads 1.2v then try a new one. Mine did the same thing a while back, replaced it and it was fine.
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Old 10-06-2011, 12:48 AM   #5
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Re: setting tps

it will go back down, seriously give it time and a few starts. that's how mine worked after my rebuild.
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Old 10-06-2011, 09:14 AM   #6
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Re: setting tps

Quote:
Originally Posted by Otlaw80 View Post
Trying to reset base timing and idle. While trying to set my tps the voltage will not go down past 1.2 volts. I know it needs to be set at around .95 does this indicate a bad sensor or is there something else going on.
You are working on an 86 Mustang right?
Is it still a speed density car?
Are the parameters the same on speed density as they are on MAF?

If all the above are yes, then I would suspect that you either have a bad connection or the TPS needs to be replaced.

P.S. I am putting a link to a good MAF conversion article in the sticky thread "Useful Mustang Information Sites" if you need it.
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Old 10-06-2011, 11:52 AM   #7
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Quote:
Originally Posted by Trojan Horse

You are working on an 86 Mustang right?
Is it still a speed density car?
Are the parameters the same on speed density as they are on MAF?

If all the above are yes, then I would suspect that you either have a bad connection or the TPS needs to be replaced.

P.S. I am putting a link to a good MAF conversion article in the sticky thread "Useful Mustang Information Sites" if you need it.
That's a good question. I just assumed it would be. I'll have to do some digging.

---------- Post added at 11:50 AM ---------- Previous post was at 11:47 AM ----------

Quote:
Originally Posted by 93slowstang

You might try moving it back some to see if it's just not moving back enough. If it still reads 1.2v then try a new one. Mine did the same thing a while back, replaced it and it was fine.
I did try moving it back by hand but no luck it is bottomed out. Gonna double check on the specs for a SD car and then try a new sensor if its the same. Thanx all for the input.

---------- Post added at 11:52 AM ---------- Previous post was at 11:50 AM ----------

Quote:
Originally Posted by jk_aktion
it will go back down, seriously give it time and a few starts. that's how mine worked after my rebuild.
Doesn't make sense that there would be any voltage change just by running it. It's pretty much just a potentiometer with a physical high and low limit. However I've seen wierder things so might as well try that first.
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Old 10-06-2011, 12:08 PM   #8
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Been checking online, the parameters are the same for speed density cars as maf cars.
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Old 10-06-2011, 12:17 PM   #9
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Originally Posted by 93slowstang
Been checking online, the parameters are the same for speed density cars as maf cars.
Appreciate it. Thanx
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Old 10-06-2011, 01:24 PM   #10
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Np
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Old 10-07-2011, 08:46 AM   #11
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Re: setting tps

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Been checking online, the parameters are the same for speed density cars as maf cars.

Thanks.
It was the wife's birthday and I didn't have time to check that out for him.
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Old 10-07-2011, 12:54 PM   #12
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Quote:
Originally Posted by Trojan Horse

Thanks.
It was the wife's birthday and I didn't have time to check that out for him.
Just trying to help as usual. Hope your wife had a good birthday.
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Old 10-07-2011, 09:31 PM   #13
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Re: setting tps

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Just trying to help as usual. Hope your wife had a good birthday.
She said Thanks and Yes, she did.
I got her a new laptop and accessories. She is very happy that she can go anywhere with it and get online to shop and check her emails.

My God! What have I done!
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Old 10-07-2011, 10:55 PM   #14
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Re: setting tps

Happy birthday to your wife trojan! Hopefully sunday I'll get a chance to work on the stang some, but its hunting season too! Have to change struts on a friends car after work tomorrow, and look at grandma's car that is making a "funny click/clank noise" (her words, not mine lol) One of these days I'll be driving this thing.
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Old 10-07-2011, 11:49 PM   #15
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Quote:
Originally Posted by Trojan Horse

She said Thanks and Yes, she did.
I got her a new laptop and accessories. She is very happy that she can go anywhere with it and get online to shop and check her emails.

My God! What have I done!
Y'all sound like a very happy couple, I'm glad she had a good birthday.
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Old 10-08-2011, 03:05 PM   #16
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Re: setting tps

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Happy birthday to your wife trojan! Hopefully sunday I'll get a chance to work on the stang some, but its hunting season too! Have to change struts on a friends car after work tomorrow, and look at grandma's car that is making a "funny click/clank noise" (her words, not mine lol) One of these days I'll be driving this thing.
She said to tell you Thanks! for the Happy Birthday.

I understand your situation.
I used to hunt back when I still could, so I definitely can relate to that.
And, I'm the go to guy for most of my friend's and family's vehicle problems too.
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Old 10-08-2011, 03:10 PM   #17
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Re: setting tps

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Y'all sound like a very happy couple, I'm glad she had a good birthday.
We are.
We will be married for 36 years in a few months, so we have a pretty good handle on the relationship thing by now.

You want to know what is strange? We have very few likes and dislikes in common, but it works for us.

Thanks,
TH
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Old 10-08-2011, 03:36 PM   #18
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Quote:
Originally Posted by Trojan Horse

We are.
We will be married for 36 years in a few months, so we have a pretty good handle on the relationship thing by now.

You want to know what is strange? We have very few likes and dislikes in common, but it works for us.

Thanks,
TH
Love hearing about good marriages. Congrats on the upcoming 36yrs of the ole ball and chain.
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