throttle position sensor tps voltage check
Thread Starter
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Mountain Pass
Joined: Jul 2004
Posts: 110
Likes: 1
throttle position sensor tps voltage check
I have a 94 3.0L aerostar and it has been acting up some. I pulled the codes with my scanner and got code 53. throttle sensor voltage too high. bought a new sensor and going to install it. before I do I was wondering about "dialing it in". does anyone know if you are to check the voltage to the tps and adjust it before tighting? I know that there is some play in the screw holes. turning it clockwise raises the voltage. I have a mustang that I read some tech tips about and it had a tip on setting the tps voltage to .96-.99 for best results key on engine off . does the 94 3.0L aerostar have or benefit from this also?? thanks
Junior User
Joined: Mar 2004
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I own a 94 3.0 I changed the tps and do not believe mine had any adjustment,must depend on the type of intake I guess?If you have any info keep us posted.I don't know about you but had a hard time taking off one of the screws,modified them with allen heads,remember to have the same amount of threads and lenght,bought them from a hardware store that deals with all types of specifque screws and bolts,not to worry but just be observant.The modification was just my personal touch,optional.
Mojo Hobo
Mojo Hobo
Thread Starter
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Mountain Pass
Joined: Jul 2004
Posts: 110
Likes: 1
my screws were hard too and I replaced with 8mm hex head type. code 53 is still present (TPS voltage too high) , even though I "dialed in" the old sensor and drove the van some. replaced with new sensor and no change. measured voltages and all fall within limits set in service manual. even cleared all codes and disconnected battery for several minutes. started the van and code 53 was there.? looks like something else is broken. I guess I will seek help at the Ford house.
Junior User
Joined: Mar 2004
Posts: 60
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Just a suggestion.
I may be wrong but I heard when you disconnect the battery,disconnect the neg.and step on brake pedal,drains all the power.I'm really not sure so if someone can correct me please do,like I said just a suggestion.
Mojo Hobo
Keep us posted
I may be wrong but I heard when you disconnect the battery,disconnect the neg.and step on brake pedal,drains all the power.I'm really not sure so if someone can correct me please do,like I said just a suggestion.
Mojo Hobo
Keep us posted
Postmaster
Joined: Jan 2003
Posts: 4,417
Likes: 3
From: Durham, NC
Originally Posted by mojo hobo
Just a suggestion.
I may be wrong but I heard when you disconnect the battery,disconnect the neg.and step on brake pedal,drains all the power.I'm really not sure so if someone can correct me please do,like I said just a suggestion.
Mojo Hobo
Keep us posted
I may be wrong but I heard when you disconnect the battery,disconnect the neg.and step on brake pedal,drains all the power.I'm really not sure so if someone can correct me please do,like I said just a suggestion.
Mojo Hobo
Keep us posted
Thread Starter
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Mountain Pass
Joined: Jul 2004
Posts: 110
Likes: 1
I will try to clear all the code again and also drain the capacitors as suggested. I am also going to inspect the 60 pin connector. hope some of this helps. the Ford house is sure to charge big bucks to do this. thanks
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Thread Starter
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Mountain Pass
Joined: Jul 2004
Posts: 110
Likes: 1
well not sure what I did but the code is gone. maybe my diligence has paid off. cleaned all the electrical connectors at the TPS and the 60 pin. cleared all KOER code and disconnected the battery / drain capacitors. reconnected all and double checked the entire thing. code is gone. still need to drive and check performance but is looks good so far. thanks for all the support. 
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Postmaster
Joined: Jan 2003
Posts: 4,417
Likes: 3
From: Durham, NC
Originally Posted by Racerguy
At one course I took our instructor told us that the best way to discharge the capacitors is to, with a battery terminal off, touch the positive and negative battery cables together.
