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Author
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Topic: sputtering problem
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full throttle
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Member # 7220
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posted
 
 
sometimes when i drive, my car sputters when im holding a constant throttle in any gear, if i rev it up in neutral, and put it back into gear, it goes away i got a 5 speed 88 lx 5.0, what could cause this problems? help please
Posts: 171 | From: Oakland | Registered: Nov 2006
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rickm347
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Member # 5323
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posted
after you do your little trick, how long before the car starts sputtering again??
*i might be off, but that happened on a couple of my foxes, but i would say that the ignition control module (externally mounted on distributer) is starting to fail . . . .just maybe. you can get it tested at autozone for free --rick
Posts: 936 | From: Chico | Registered: Feb 2005
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JohnB
Tech Moderator
Member # 969
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posted
Sounds like the TPS is going south. A weak spring in a TPS will cause this.
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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rickm347
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Member # 5323
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posted
thats more realistic than what i said ![[patriot]](graemlins/patriot.gif)
. . . .my bad
Posts: 936 | From: Chico | Registered: Feb 2005
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full throttle
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Member # 7220
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posted
how do i change the TPS and what does it stand for throttle position sensor? thank you
Posts: 171 | From: Oakland | Registered: Nov 2006
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*BlueBeast88.306*
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Member # 6360
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Yes, it's right on top of the T/B held on with 2 screws. Depending on your T/B on idle screw position you may need to slightly adjust it after you changr it.
Posts: 462 | From: Concord | Registered: Jan 2006
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full throttle
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Member # 7220
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posted
i never changed it before, it happened out of no where, and do you still think its the tps sensor if my throttle was constant when its sputtering and stuff?
Posts: 171 | From: Oakland | Registered: Nov 2006
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rickm347
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Member # 5323
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quote:
Originally posted by full throttle:
do you still think its the tps sensor if my throttle was constant when its sputtering and stuff?
yes. go buy a new tps. if you take your old one to autozone, they will test the old one to ensure that the it is bad. if indeed it is, because thats what your symptoms suggest, have them test the new one before you leave the store --rick
Posts: 936 | From: Chico | Registered: Feb 2005
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full throttle
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Member # 7220
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posted
thanks, do you know how much they go for?
Posts: 171 | From: Oakland | Registered: Nov 2006
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rickm347
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Member # 5323
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posted
$31.99 with 1 year warranty
Posts: 936 | From: Chico | Registered: Feb 2005
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full throttle
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Member # 7220
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so i heard if you change a tps, your idle would fuck up unless you tweak or some shit? can someone explain ?
Posts: 171 | From: Oakland | Registered: Nov 2006
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rickm347
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Member # 5323
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posted
when you change the tps, make sure you are within the correct voltage at the connector.....i believe johnb or blown67 said its supposed to be .95-.99 volts (dont quote me tho). After you get that set, your idle may not be the same. Simply adjust the idle screw til your idle is back down to 800rpm. . . ..good luck --rick
Posts: 936 | From: Chico | Registered: Feb 2005
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rickm347
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Member # 5323
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posted
I dont remember which repair manual said this, but when you install the TPS, one of the screws is just a hold down and the other screw is for adjustment. the book says to rotate the TPS counterclockwise all the way. Supposingly thats the stock position, but just make sure you have the correct voltage at the connector and you cant go wrong --rick
Posts: 936 | From: Chico | Registered: Feb 2005
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JBeezy53
CAFords OG
Member # 3960
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posted
Don't mess with the idle screw after you set the tps. If you adjust the idle screw then that will change the voltage. Set the tps last.
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89 Gt
98 Cobra
88 Notch
05 GSXR 750 Blk/Yel
Posts: 1782 | From: Sacramento, Ca | Registered: Jan 2004
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full throttle
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Member # 7220
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how do you set the tps? with a volt meter? and point it to the green wire i suppose?
Posts: 171 | From: Oakland | Registered: Nov 2006
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