TPS SENSOR, Symptoms of TPS failure CEL, ESC OFF LIGHT ON=TOTAL LOSS OF POWER - Hyundai Forums : Hyundai Forum
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#1 Old 09-02-2012, 09:34 PM
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TPS SENSOR, Symptoms of TPS failure CEL, ESC OFF LIGHT ON=TOTAL LOSS OF POWER

TPS SENSOR, Symptoms of TPS failure CEL, ESC OFF LIGHT ON=TOTAL LOSS OF POWER

Affected vehicles:

For sure:
KIA SEDONA 2006>*2012
HYUNDAI ENTOURAGE 2007>2008

Most likely most all KIA /Hyundai's that don't have a physical throttle cable.


Hello all, (part of) the below post was originally going to be part of a reply to a post in another thread.
Thought I'd expand on that post, and post it here so it would help others..

EXPERIENCING ALL OF THE SUDDEN A TOTAL LOSS OF POWER?


Most likely it's the TPS SENSOR
(TPS= Throttle Position Sensor)

Current part #35107-3C100-NFFF THROTTLE SENSOR ASSYS (TPS)

(If you haven't yet had the below experience, don't worry you will, it just a matter of time.)

TPS SENSOR, what's that?

Back in the old days- A cable was attached to the gas pedal- when you push the gas pedal the cable would open the "butterfly, aka Intake plate". The further you push the gas pedal the more air is admitted into the engine, and the RPM's increased. (Car goes faster.)

Sedona/Entourage has No throttle cable.
It has what is called a "fly by wire" system.
You have a switch in the gas pedal that "talks" to the TPS, and the ECM /ECU. The ECM/ECU (computer) tracks position of gas pedal, and the TPS tracks the position of the intake butterfly valve (Stepper motor). If they don't match... the car goes into "limp home mode". (RPM drops to idle)


SYMPTOMS OF A TPS FAILURE=

You lose power ALL of the sudden without warning (Cool I need a challenge today)
"CEL" comes on (Check Engine light) Code=P2135 IIRC
ESC OFF light comes on (Electronic Stability Control)

Car loses ALL power and the gas pedal doesn't do a blankly-blank thing. (Cool, Hey look at that dump truck coming right at my door - GEE, I can count the number of fins on the radiator it's so close.)

RPM= Think idle speed...

If you are early on in this "lovely" adventure (EG: It just started to happen)... turning the car OFF, then recranking the car will "reset" the ECU... and you regain power.... Regain power till the next event occurs that is.

This morning wifely called... (Boy did she sound happy) dang thing screwed up on her about 4-5 times on her (3) mile trip to work.

The fix?

Well depending upon the *age of your car you can't just "replace' the TPS sensor as they've superseded the part number and it requires that the computer which talks to both components has to be "updated'.
(Read that as you have to pay the dealer 1hr labor -on a part that can be replaced in a few minutes.)

* 2011? 2012 models...
Disclaimer" I don't know when the superseded part came out so a 2011? 2012 model may have the revised part already, If so the symptoms will be the SAME, lucky for you no ECU "update" is required


NOTE: If your car doesn't require a ECM update replacing the TPS is a simple DIY repair.
The holes that hold the TPS sensor are NOT slotted- remove the (3) bolts, (1) electrical connector and it comes right off.

Price= 1hr labor (To R&R TPS SENSOR and REPROGRAM ECU)
(Price was also 1hr labor if I installed part- and had them reprogram ECU)


Total cost= 1hr labor+40+/- for TPS itself...

************************
TIP: If you're car is having this problem, Pick a time of day that traffic is light. If you attempt a trip to the dealer in rush hour traffic you will have all kinds of people using various hand gestures directed towards YOU.


Ah, the trip to the dealership:


Oh, the trip to the dealership was FUN, imagine going city block by city block stop and go NEVER knowing "when" it's going to lose power...
(Lost power about 10 times on the way over there.)..

Once I got on the interstate (A crap shoot if it totally crapped out) When I did have POWER,, it was like get the HECK OUT OF MY WAY... I need to get up SPEED to make it up the next HILL (Mountain) if this thing fails on me again.

(Man was that a police car I just passed?...)

NOTE to self,,, lucky SOB's in areas with their flat level ground -Long stretches of flat level road...

Oh, to the lady in the Honda that was getting off the interstate talking /texting on the phone going like 15mph and when I went into the far lane to get around you, "then" you tried to come over on me...

GET OFF THE PHONE AND DRIVE !!!!
GET IN THE SLOW LANE, its' not cool to block faster traffic (She was going like 15 in a 45mph zone)
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#2 Old 02-24-2013, 07:58 AM
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Dear Sir
My car is Sonata model 1994 automatic with 4 cylinder.
I have a problem in THROTTLE POSITION SENSOR (TP SENSOR) adjustment.
I have done the adjustment just like the instructions that is mentioned in the Service manual.
I used a digital voltmeter to measure the voltage between connector 1 and 3.the voltage is 480-520 mV.
I also disconnected the negative connector of the battery for 30 seconds.But it didn’t work and the car is not idling well now.
I have RPM fluctuation while idling.in Idling mode the RPM is about 1100.

I would greatly appreciate if you help me about this case and tell me the correct way for TP SENSOR adjustment.
Best regards.
Arash Pourakbar
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#3 Old 02-25-2013, 01:22 AM
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Quote:
Originally Posted by arashflooyd View Post
Dear Sir
My car is Sonata model 1994 automatic with 4 cylinder.
I have a problem in THROTTLE POSITION SENSOR (TP SENSOR) adjustment.
I have done the adjustment just like the instructions that is mentioned in the Service manual.
I used a digital voltmeter to measure the voltage between connector 1 and 3.the voltage is 480-520 mV.
I also disconnected the negative connector of the battery for 30 seconds.But it didn’t work and the car is not idling well now.
I have RPM fluctuation while idling.in Idling mode the RPM is about 1100.

I would greatly appreciate if you help me about this case and tell me the correct way for TP SENSOR adjustment.
Best regards.
Arash Pourakbar
Sonata model 1994


Q: How many miles?
Q: Driven on rough roads?
Q: Car ever wrecked?
Ask the above as you might have a wiring problem.

Q: Measure the voltage between connector 1 and 3.the voltage is 480-520 mV. = This normal spec?
Q: Was the car idling correctly before?
Q: Why did you adjust sensor? DID IT FAIL? (EG: Loss of power/throttle non-responsive?)
Q: Did you REPLACE the THROTTLE POSITION SENSOR (TP SENSOR)
Q: Replaced with new or used part?
Q: You mention car idling too high- You didn't adjust throttle plate did you?

Fluctuation at idle= OX sensor /mixture. Vacuum leak.
Q: 1994 car = Intake plumbing rubber cracked.

If car was acting normally before, If you replaced it most likely the ECU (computer) needs to be *updated. That would be my guess.

PS: You are in the the 2007-2008 Hyundai Entourage part of the board, I'd suggest you ask further questions in the Sonata model 1994 section.

NOTE: When you fix the car- Post back what was the "fix" in as much detail as possible.

(EG: Post back info you'd like to have right now on the subject.)

.

Last edited by WeAreNotAlonek; 02-25-2013 at 01:32 AM.
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#4 Old 09-10-2013, 07:55 AM
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Thanks for taking the time to create this thread. It answers a lot of questions and is exactly what we are experiencing now. Our '07 has acted up four times so far and I've just unhooked the battery after each time to reset the check engine indicator.

I'll have to take it to the dealer soon because the wife isn't excited by the prospect of the engine losing power on the interstate. We've only been back to the dealer once in 85,000 miles and it's something I dislike doing.

Seems odd to me that the vehicle warranty does not cover a known fault...... I called the 800 number and after ten minutes of nonsense and then five more minutes of waiting on line ......... They said "Nope... Not covered".

Thanks again for the info.
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#5 Old 12-07-2013, 04:07 PM
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I have a 2007 Hyundai Entourage SE and noticed a slightly different symptoms.

Symptom #1
When I start my engine in the cold mornings, it does this "rumm ..... rumm.... rummm" where the RPM's will vacillate between 1000 and 2000 RPMs. After doing this for 30-60 seconds, the engine seems to warm up and maintain a steady RPMs from this point forward.

Symptom #2
In two sepearate occassions, both when it was in the 10's and 20's F outside, after starting the car, the gas pedal doesn't do anything! You can stomp away and there's no engine response. After a few minutes of warming up, then the engine will repond.

So here's what I think the solution may be:

After this lastest manifestation of symptom #2, I got my trusty Android phone loaded with "Torque" and got my ELM327(which you can buy here) and pulled the codes - P2106, P1295, and P2135.

After researching the commonalities of those codes - they all point to the Throttle Position Sensor. So wouldn't you know -- there is a TSB on this issue TSB 10-FL-010 (which you can read here) which explains all about the condition and how to solve it.

Hyundai Entourage - Throttle Position Sensor = Part # 35107-3C100FFF

So I figured that I could easily install the part. I found some suppliers in the the U.S. who would be happy to sell me the part for $30-$35 (part plus shipping).

But I found this guy out of Korea who will sell it to me for approx $11 (part plus shipping)
Auto Part Item View : 351073C100FFF TH SENSOR ASSY(TPS) for HYUNDAI/KIA AZERA

So I've ordered the $11 part and we'll see. I'll let you know how it goes.

Zach Underwood
.... . . . . . . . . . . . . . .
2007 Hyundai Entourage SE 68k miles 5w-20 Mobil 1 EP
2004 Toyota Camry SE 119k miles 5w-30 Mobil 1 EP

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#6 Old 12-07-2013, 04:39 PM
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Most any local Hyundai dealer will have the part on the shelf,, current part number is 35107-3C100NFFF. Retail is $33 and a few cents

At 1 point a few yr back, we kept around (10) of the "-3C" model on the shelf, and close to same of the "-3E" for the 2.7L on the shelf.. we was replacing them left and right for a bit, but seems to have slowed down the last yr or so with them, since everybody had them replaced.

The 3C100 is used for Santa Fe, Sonata, Veracruz, Entourage, Azera, Genesis all with LAMBDA engine/DELPHI control

While you messing with the Entourage, make sure your inlet boot between MAF and throttle body is not torn/cracked on underside to allow air in that MAF not know about.

PCM update to be added withthe new replacement sensor

<--- please fill in the 'location' and 'what you drive' boxes on your personal profile page.
This information makes it much easier for other members to answer/comment on your posts.
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#7 Old 12-24-2013, 10:25 PM
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Hey team! I got my part from the Korea parts dealer and installed it today. I wrote a "how to" from my experience!

How to change Hyundai Entourage TPS - Throttle Position Sensor

Zach Underwood
.... . . . . . . . . . . . . . .
2007 Hyundai Entourage SE 68k miles 5w-20 Mobil 1 EP
2004 Toyota Camry SE 119k miles 5w-30 Mobil 1 EP

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#8 Old 08-19-2014, 01:52 PM
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I know the thread is a year old ...... but I just paid $260. to have the $30. part installed ...primarily because of the new programming required.

The dealer also wanted $155. to replace the throttle body air hose assembly that was cracked. I ordered it from Amazon for $30. (Dorman 696735)
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#9 Old 08-19-2014, 02:47 PM
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Quote:
Originally Posted by RCOONS View Post
Posted 09-10-2013, 06:55 AM Thanks for taking the time to create this thread. It answers a lot of questions and is exactly what we are experiencing now. Our '07 has acted up four times so far and I've just unhooked the battery after each time to reset the check engine indicator.

I'll have to take it to the dealer soon because the wife isn't excited by the prospect of the engine losing power on the interstate. We've only been back to the dealer once in 85,000 miles and it's something I dislike doing.

Seems odd to me that the vehicle warranty does not cover a known fault...... I called the 800 number and after ten minutes of nonsense and then five more minutes of waiting on line ......... They said &quot;Nope... Not covered&quot;.

Thanks again for the info.
Regarding LOSS OF POWER which endangers not only the lives of those in the car, but ALSO endangers the lives of others in traffic within as much as a 2,500ft radius, or possibly more..

If you think about it, it is a SAFETY ISSUE and there should be no charge for replacing the TPS Sensor.

Dealers should be instructed if anyone has this problem to replace the TPS @ no charge. I think it's downright shameful to read about people being quoted a price as high as $480 to replace a part that probably costs $6 to manufacture if that. Sensor is easily accessible and doesn't take long to replace so cost of labor could be MORE than made up by doing a inspection of the car while it was in, finding other issues that needed work.

Quote:
Originally Posted by RCOONS View Post
Posted 08-19-2014I know the thread is a year old ...... but I just paid $260. to have the $30. part installed ...primarily because of the new programming required.

The dealer also wanted $155. to replace the throttle body air hose assembly that was cracked. I ordered it from Amazon for $30. (Dorman 696735)
So the hourly rate @ the dealer is $230 per hour?

Are you in in So California, or maybe Palm Beach Florida, The French Rivera? (High dollar area)

PS: I noticed your initial post was from 09-10-2013, 06:55 AM, I would assume you've been driving the car and just only now are having the TPS replaced due to the COST to do so? If so (not to ding you personally) this is the reason a failing TPS Sensor should deemed a "SAFETY RELATED ISSUE" and be replaced a@ no charge!

(I had the misfortune of the TPS failing and car losing all throttle response at random one afternoon, and got the car to the dealer pronto and let me tell you the ride to the dealer was a fun one!)

* Proper thing to do is to have car flat-bedded to dealer.
Since it is a SAFETY RELATED ISSUE, all dealers should be instructed to have the car "flat-bedded" in with Hyundai/Kia picking up the tab on that as well. Instead dealers are charging $230 labor , and as much as $480 to replace a part which probably costs $6 or less to manufacture and takes 20 minutes to replace and reprogram ECU.


.

.

Last edited by WeAreNotAlonek; 08-19-2014 at 03:00 PM.
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#10 Old 08-19-2014, 08:13 PM
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A little more painful tonight ........ the fix appears to have failed. Both the check engine and ESR light are again on. Another crappy trip back to the stealer.
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