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Discussion Starter #1
I have a 2003 Odyssey and I just got a replacement TPS from Imported Auto parts (great service btw).

Their instructions require that the throttle body be removed to install the TPS - I don't think this is a job for the faint of heart.

Is there a way to replace the TPS without removing the throttle body?

Where is the TPS located? Pictures, anyone?

Thanks in advance!
 

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Keep us posted...

I have seen this code on my 2000 but it ended up going away.

Very stupid design that does not allow an owner to easily replace this component.

Even my poorly engineered Z28 allows for easy, logical replacement of this part.

Please update us on the difficulty of the procedure and how well the new part worked.

Also, what did the TPS cost?

Thanks and good luck.
 

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Didn't somebody from Mexico write up about replacing the TPS by drilling the rivets? There were pictures and everything posted here. Or was that IACV?
 

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Discussion Starter #6
I'm from Mexico and yes, two years and months ago I posted about replacing the TPS.

To answer to some of you, here's the story:

1. I got my TPS from import auto perofrmance parts. It cost back then about US$60-US$70 plus shipping, way below the US$500 that Honda Mexico wanted (and wants) for the throttle body.

2. I had the dealer replace the TPS and they somehow took it out, noting that it was riveted. I recall telling them to use a Dremel tool to cut the head of the screw to be able to use a screwdriver, and I don't know if they did that or not, but I'll soon find out. :confused:

3. Somehow the TPS failed again. The car couldn't climb a hill, the transmission kicked when shifting, and all pointed to a faulty TPS, con consequently, Honda's desire to change the TB and I thought, TS...

4. The nice fellows from whom I bought the firts TPS have a five year warranty in their stuff, so I emailed them and in no time I had a replacement TPS. In only paid for shipping. Now, that's a company that's well worth doing business with.

5. This time I want to change the TPS my self and thanks to the diagram provided above, I may be able to do it. An independent shop wants to charge US$100 ("it's half-a-day's work" they said), so I may as well give it a try, in the hopes of not paying them twice that amount to fix whatever goes wrong.

6. It's worth noting that the new TPS includes a new gasket AND screws. It looks like Honda shaves the heads of the screws so people think they're rivetted, so they can sell a new TB.
 

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Thank you for that explanation. I thought I was going senile in my old age :) You know, memory is the first thing to go!

Are you getting bad TPS code? Using scanner, TPS would be trivial to check. Even without scanner, a multimeter should be able to tell you if it is broken completely. If I were in your shoes, I would verify that TPS is broken before going through all the trouble to replace it.

- Vikas
 

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Discussion Starter #8
We had the car scanned and it reported a TPS error code.

I can check the voltage but do you know the spec? I have a spec that says that "with the key on engine off check voltage on the center wire of the TPS sensor plug. Adjust the rotation of the TPS sensor till 0.45 volts is achieved..."

Is this less-than-half-a-volt spec correct?
 

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The spec essentially says that the voltage goes from 0-5V (close-open throttle) with 10% margin. So if you get 0.5V - 4.5V (close-open), your TPS is good. Make sure the voltage curve is linear and it does not drop when you go from close-open-close.
 

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Discussion Starter #10
Tried to replace my TPS this morning. The procedure is easy:

1. Remove engine cover.
2. Locate the sensor as per the diagram above (thanks, sontakke!)
3. Disconnect car battery.
4. Disconnect old TPS. Press the plug to do this.
5. If you have the original TPS, use a Dremel or similar tool to make notches to unscrew the sensor. Those are screws, not rivets.
6. Remove the old TPS and put the new one.

Now, when I started the engine, the yellow light in the dashboard went off... I couldn't measure my voltage in the TPS. I tried to stick my voltmeter probe next to the red cable in the middle but it didn't reach the connection. Now, how do I measure my voltage and possible get rid of the yellow light? :stupid:
 

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Discussion Starter #11
The end of the story.

Well, I finally managed to get things straight. After I put the new TPS, I drove to Autozone and they cleared the codes for me. End of story.

I'd like to advise you that if your transmission starts kicking when it shifts, the car feels slow or it has a fast idle, check the TPS and replace it before doing anything else. This is relatively cheap and easy to do.

Marry Xmas everybody!:joy:
 

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If the probe of a voltmeter won't reach the pin use a piece if solid wire. Push it in the socket until you get a reading. I have gone so far as using a needle or pin to probe the wire.
 

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I have symptoms like this:
Driving around 30-40 MPH, the RPMs rise and fall and the trans acts funny. I've been driving around town inn D3 lately and the RPMs still wander, but no shifting issues.
No CEL light ever.
I just verified my TPS is bad. It appears the TPS is just a potentiometer. With the engine off, I removed the plug and used a couple small female spade type connectors to connect to my meter to the TPS.
Reading the top-to-bottom contacts reads the total resistance: around 5,000 ohms.
Reading top-to-middle will read nearly 5,000 ohms and should decrease slowly as the throttle is rotated from idle. Mine goes up and down from idle to about 1/8th throttle, then decreases smoothly from about 1/8th throttle through full throttle.
Time to order some parts....
By the way, its an '02 Ody EX w/130,000 miles.
 

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I have replaced several Honda TPS sensors on various vehicles. A Dremel tool with the thin rotary cutter works great to make a small slot into the headless screws. A small screwdriver can then be used to unscrew them. Usually, the replacement sensor comes with allen head bolts and I just reuse the washers that come off with the headless screws. It is important to adjust your voltage range after replacement, at least on the units that are adjustable. I am thinking it should go from 0 volts at idle to 4.5 volts at full throttle, but I might be a little off on the voltages. Check with the ignition "ON" but the engine "OFF" using some unbent paper clips to insert the connector to read the voltage. A very easy procedure that any slightly mechanical person can accomplish.
 

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Hey Guys and Gals,
The Honda dealer here in Houston off of Hwy 610 tried to screw me into buying a new or rebuilt tranny for my 2003 Ody. My symptoms are exactly as mentioned above. This morning I removed and inspected the ECM/TCM and didn't find anything burnt, so I put everything back together and checked the voltage on the TPS using the above method. The reading was all over the place so it's probably bad. Strange thing though... when I reset the computer, the van drives just like it's supposed to... until it gets hot. I assume that once that heat gets to the the sensor and causes it to thermally expand, all bets are off and after being nearly shaken to death, the ECM decides to go into limp mode.

I guess while the computer is re-learning, it gives the benefit of doubt and runs like it is supposed to.
 

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Hey guys I have a 02 Odyssey ex. I replaced my tps and my idle in park jumps from 750 to 2000 rpms. And in drive jumps around a little too and the cars jerks. I have set the new tps to 0.50 ohms bit still acts up. I had the van running and disconnected the tps connector and the idle went down to normal but I tried to drive and wouldn't go far and smelt bad. I turned the vehicle off and restarted and went back to the hesitation that it's been doing. Anybody have any ideas? Oh and when I put it to full throttle it only goes up to less then 2.00 ohms
 
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