Check Engine Light? No Power? Weak Car Acceleration? - Code P2138

[@1AAuto]

√ *Watch the Video* √ *Buy The Part at 1A Auto* 1aau.to/m/Visit-1AAuto √ *Do it Yourself* √ *Save Money*

[@roachfordspencer8136]

Good demonstration , thanks very much.

[@seldonludlow6085]

Plus don't have the tools needed plus more questions I have

[@seldonludlow6085]

Thanks

[@robertoibarra3542]

Thanks for the info

[@JJ-sd9zt]

I got a p2138 code on a 2006 malibu . It came to me in limp mode . I called the parts store and had them order the gas pedal assembly . I pulled the pedal assembly from the car and saw that the electrical component had a snap off cover 😀 . I popped it off and saw a rheostat with small copper fingers . I cleaned the contact area with a q-tip with alcohol on it . Reassembled it and erased the code with the code scanner , replaced the pedal assy. No expensive part needed . Easy peasy

[@rileynelson1864]

I replaced throttle body and pedal and stillnhave the issue 2011 camaro 3.6

[@automotiveperformancemobil4030]

One tip ... not challenging this guy by any means... When you are diagnosing, have piece of mind by checking resistance at the actual pedal. You started from the far end, worked your way in and STOP..."IT'S THE PEDAL!" ... don't do it like that. Add that one more step and check the terminals on the sensor itself(which ever you are working on). You very well might have a good sensor and the wires(although checked out) might have a wiggly issue in the wiring and just so happen to fool you at the final diagnosis leading you to believe the sensor when all it was was a chaffing wire that just so happen to not be at the final.

[@arthurstember6572]

Great. So what happens when this is intermittent????? Get the code, car goes to limp. Stop the car, turn off the engine. Sit for one minute, restart car and NO limp mode and car runs fine.......go home. Restarts in morning and runs fine until it doesnt again.......and round and round....

[@adalbertodagraca8599]

Hello, I received a car in my workshop with a code p2138. Thanks to this video I was able to detect a broken cable. Thanks for the help

[@ZR-ur9wz]

Thank you so much. That was very helpful. I just follow what you said and fixed my car without paying nothing..

[@jwgaitan4500]

Very brilliant!!! it would take me days to get that information in books. You gave it to me in minutes. Thank you very much excellent video.

[@AbdurRahman-mb1vr]

Gosh this guy has saved me so much money.

[@Daveunruh]

I’m seeing a lot of GM cars have a condition where pushing the pedal, one sensor will move 1% before the other- won’t set a code. But under return, the one will return and the other won’t return to 0% position. That’s a difference of 2% total- That will set a code.

[@grominwithrob1339]

Mine is always off by one percent while accelerating or decelerating. They are equal when you reach desired speed .

[@yactabay]

I just bought the pedal/sensor assembly for nothing. I each as many videos as I can and somehow skipped over this one. I watch 1A and have ordered parts in the past. After watching this video I did the test and my white/black wire is barely sending anything. Instead of something close like your 4.98 it isn’t even reaching one volt. It varies from .4 to .9. Trying to follow a break in a cable is going to be fun especially if somewhere in the middle. Learn from my lesson, guys.

[@jojetevangelista5000]

I'm from the Philippines , thank you so much sir,, it really help me a lot to understand how this problem of my car will be solve ( p2138 ). 👏👏👏

[@1AAuto]

+Jojet Evangelista Thank you! We love empowering our customers and showing how to perform DIY auto repairs with our high-quality auto parts. 1aau.to/m/Shop-1AAuto-c

[@Pinkielover]

Actually you don't want any contacts to have dielectric greese.. That's something you put over exposed parts of wire once they're already connected together ,,example a battery terminal that's been cleaned you have wires connected to the terminal you put a little bit of dielectric grease over to terminal thats already connected..It would basically insulate the exposed wire From the air

[@Greenkabin]

Nowadays the new vehicle drive by the wires is sucks because it cause too many electronics issues

[@DesDriftDad]

Interesting! Let me throw a wrench in here if I may. The only time I've ever got this code is when my Pedal Commander was hooked up. It works flawlessly for a couple months, and then all of a sudden it goes into limp mode on a start up. Disconnect the Pedal Commander and put it back to stock, problem goes away instantly. I've been working with the folks at PC for a few months trying to resolve this issue. They are good to deal with so I'm cautiously optimistic that we come to a good fix. I also run a Range Technologies AFM disabler, so we will see if the two together are causing an issue. I will reply back in the future when I have a solid cure.

[@1AAuto]

+@desballard2614 Thanks for checking us out. Shop for high quality auto parts on 1AAuto.com: 1aau.to/m/Shop-1AAuto-c

[@TeresaYKent]

You're massively awesome! The world would most certainly benefit with a few more as helpful as you. Thanks. You're information has helped me tremendously.

[@mikethompson3353]

Is the pin assignment on the connector the same for all makes and models?

[@dennisnadolny4484]

Can you have a accelerator position sensor issue without having a code?

[@tylerbrothers6840]

Yep

[@obedhyppolite275]

What is the symptoms?

[@johncook708]

You made that very easy to understand thank you so much for the video you didn't rush through it and you explained everything voltage alms everything

[@youdagoob]

I had this code on a Buick Enclave. Previous to that, I just assumed the engine was lackluster because it has 220,000+ miles. After replacing the gas pedal, it accelerates like it is new again. Thanks!

[@1AAuto]

+@youdagoob Thank you! We love empowering our customers and showing how to perform DIY auto repairs with our high-quality auto parts. 1aau.to/m/Shop-1AAuto-c

[@seanpannebaker1731]

Great video! Do you have a video showing how to remove the accelerator pedal (2016 GMC Acadia)?

[@seanpannebaker1731]

Nevermind, found the right combination of swear words for that one bolt on the bottom side.

[@willsteele9249]

You are sooo right thank you for your video, fixed my 07 Chevy Trailblazer!

[@billrumpfelt9084]

very helpful to me in my situation. you explain in a clear way making it easy for all of us to understand. Thanks....

[@ohioplayer-bl9em]

My car also disables tracton control. I have changed the pedal once at 150k miles and just passed 300k and now its acting up again. I cleaned the connections to the pedal and also at the throttle, cleared the code and it seems to have resolved. For 150$ It maybe worth taking the plastic case off and clean it with electronic cleaner if it comes back. Lets see what happens 🙂

[@Hella-Del]

I'm at a loose end with mine. I'm getting the p2138 and p193b(throttle valve Signal error) various mechanics have looked. I know its not the pedal. App_d is fine, but app_e fluctuates. Really need some pointers. Great video though. 👍

[@michaeldande]

hi are these codes also related to the same problem should i change my acceleratio Sensor P1589 ACCELERATION SENSOR LEARNING VALUE

[@PaulHenreid]

Is the electrical connector and harness from this sensor to the PCM known as the drive-by-wire?

[@keifferdewitt4254]

Very calm clear and collect presentation on how to do the process step by step. Thank you very much. #realprofessionaladvice

[@williamgrove7835]

Awesome video, quick question are you able to drive with this problem for short distances without it doing any additional damage ?

[@Baeby999]

Can you get an epc light with this as well ?

[@bigdaddy69662]

What if I dont get a codw but it still loses power when accelerating? Could it still be an electrical problem?

[@BOBO-xe6rl]

How did you ground the multimeter on 6:00 , i dont understand

[@Greenkabin]

I don't know what to fix my 2013 silverado 1500 4x4 it has the same issue, everyone mentioned about replace Throtle body, Brake pedal position sensor, Ignition coil and spark plug, water leak into wires connector, short voltage, I'm not sure who is right what really is the problem

[@faisalsaidi3720]

Fantastic details, i always learn so much from 1A videos, keep it up guys

[@chatobalencian1504]

So I'm having the stabiltrak light come on and I have to get my obII reader and delete codes and then It will work again like nothing for a while but it also says by 2nd Bank of 02 sensor needs to be replaced you think I need to replace this or what else should I take a look at it kinda sounds like it's misfires sometimes thanks for the help

[@franciscorios104]

Should the APP and TP vary if I have the pedal pushed down and I have 67 for the APP and 61 for the TP

[@abbey_orjay]

ALSO CHECK THE BATTERY! Had a feeling it was the cause

[@alannooks2096]

I had that code before on my 2006 impala SS… and changed the accelerator pedal for a brand new one. Everything was good no code anymore.Now about a month or two later code comes back up. What could it be??

[@alannooks2096]

And can I also use electric cleaner for better connections just in case its dirty or corroded?

[@wadeparker5020]

Could be the throttle body positioning sensor… get on eBay and check out throttle body’s

[@WhitetailSpecialty]

2007 Cadillac srx with adjustable pedals, how do you disconnect the cable going to the accelerator pedal.

[@wayneschoepf6713]

I seem to have a wiring issue on my car.I replaced the connector, throttle position sensor and throttle body.How can I replace the wiring?

[@deanmeister6755]

@1A Auto: Repair Tips & Secrets Only Mechanics Know Good day! Was just wondering if the code P0122 and P0222 are also related to this issue? Am having issues with my 2015 Subaru STI. P0122 - Throttle/Pedal Position Sensor Switch " A " Circuit Low P0222 - Throttle/Pedal Position Sensor Switch " B " Circuit Low Thank you sir!

[@OnlineAutoRepairVideos]

Okay, I'm going to put this out there...BOTH our channels have a GREAT library of quality automotive repair videos, but...

[@tigereyes6868]

Can a dead, dead battery affect the APP sensor? My battery was dead for a few weeks, I just replaced the battery and now I’m having throttle issues. Had this sensor replaced 8/2018. Wondering if battery caused issue, or it just needs to be reset somehow? Thank you!

[@1AAuto]

+tigereyes6868 We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@stellarv5689]

Throttle needs to go through relearning process.

[@osamajassim5204]

Profishonal work ,thank you very much.

[@1AAuto]

+osama jassim Thanks for checking us out! 1AAuto.com

[@jream6]

What about when I go to a stop sign or light and push the brake and stop the car the Roma go up a little like if it shifted while I was on the brake

[@driverseat8932]

accord 2007 (5 cylinder) recently turned my check engine light on and got it scanned - code p2138 showed up. not sure if I have to replace this part that he's showing in the video or the sensor that's underneath the hood & I think the piece is called the APPS ? any help would be appreciated

[@josemontes7466]

I have a cheve Cruz I change the turbo but I don’t have the power and the idle is low you think it could be the gas pedal

[@Thegoat7398]

I have a 2018 kia soul and I've tried everything except this so far low acceleration lost of power etc but will try this

[@Mitutumuch]

dyde i have my slk230 ndve changed so mch, ignition coils ad then this

[@traumajock]

Mine has a new engine, cat converter, transmission. throttle body sensor. starts immediately, purrs nicely. Acceleration is uneven, hesitating. It will get up to highwau speed. No codes. I think its this sensor.

[@shuffleshuffleshuffle]

What about for C0561? Could this be the same thing?

[@juliorives6107]

I have the check engine light on and p2138 comes up,the car doesn’t accelerate the right way.I replaced the throttle pedal sensor,the throttle body assembly and it is still doing the same thing and the check engine on,I don’t know if I have to replace the computer or there is a way to reset it

[@scratchgolfermd]

This has come on 3 times on my 2019 chevy Tahoe. When is a recall going to take place?

[@MrDon967]

Enough people need to complain to the nhst or wtever for a recall

[@gabrielhatzkin4563]

My Nissan March have problem which power

[@myfamilymyway8405]

Is he responding to comments it was actually repaired today and it seems like the throttle still feels off and not accelerating as it did before. I feel a minor shake. Any tips ?

[@KingGem24]

Hi i have a toyota town ace bus thats having loss of power after driving a while.at that moment i cant go over 10 mph.when it does that i turn it off and wait for a view minutes and start it up again.than it drives perfectly again till some time later the same thing.do you think its the pedal sensor??i would really appreciate it if you could help me out.

[@AndyseousOdyssey]

I just got my second pedal issue why does this happen?

[@gmoneyfunk6974]

I have a couple questions ... 1. What if we have replaced the Accelerator position sensor and we are still getting the fault code ? Because I have replaced the APS as well, the Throttle Body Sensor and also did a fuel system cleaning but I am still getting that fault. I could really use some help because I have been struggling with this issue for some time now. 2. If I were to have the wiring replaced what would be the recommended price to pay for labor? I am planning on buying the pigtail connector to see if that is damaged I might as well change it because I am noticing that I get this fault when I hit a bump on the road. If anybody has run into a similar issue like this and fixed it please feel free to let me know what is it you did Thank you.

[@jimjoy8558]

My cadillac dts have same issue

[@esperanzavolquez4065]

Could you resolve the problem?

[@mahmoudalshawi2010]

Thanks for the info..

[@josediaz8349]

Tank you with your video I corrected my error and I am susbscribed

[@danieljimenez-mh9si]

Would this be the cause, even though i got not check engine light? But my truck wont respond sometimes, i need to step on it really slow for it to respond a little better..

[@1AAuto]

+daniel jimenez We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@AdrianGarcia-rt6lo]

I have a 2008 Audi Q7 when I start the vehicle, rpm within range,,,after a few seconds my rpm will go up to 4k while in park the gas pedal not responding, I have to shut it off,,will that be the problem?

[@dashtyATG]

Any tips please. Jeep gladiator 20 wiv smart key Ignition come on but the vehicle want crank and dose not trun back off until you remove the battery + or - Any idea please DTC p2111 p2127.

[@walterqsf]

My cables are in a different position and testing the color mentioned I get 1.0 on purple and brown 5 on black/white and tan. It’s a Saturn vue 2009

[@shockawha9]

So it said sensor but I squeezed the plug n it started right up! That would cause low voltage being loose.

[@MebratuAchimachew]

I have 2kd engine 2010 it shows check engine light on weak pedal no power &engine off by it self so tank you this is good vedio to solbe my car fault.

[@1AAuto]

+@user-ij3qk6jy9i Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@TheGlenn1976]

how do you removed a pedal assembly for 2011 chevy equinox? would greatly appreciate it if you can show us (DIY)

[@jessejameson154]

Wasn't there 6 wires on that sensor ? But only 4 checked or am I missing something??

[@Boat300]

I have a code P2138 on my 2013 Chrysler 300c , I replace the accelerator pedal and it still goes into limp mode . Any idea what could be the problem?

[@inoraitno7109]

I have nissan nv200, i got trouble, the scaner show that app censor was eror... I replace with the new one,,the trouble still there... I replace CKP censor,couldnt break the trouble... Plis give me some advice. Ps. The acseleration not over than 30kmh...

[@TheKhwailed]

My car is a Daewoo Lacetti Premier 2009 with code p2138. The strange thing is that the check eng light goes on only when I switch off the car! The engine even stutters after I remove the keys for a few seconds then it shuts down, seconds later the check eng light goes on and stays on! Any explenation for this?

[@chrisdevore9912]

K what if you dont code and ur tb still does not open and u can only get 25 hundered rpm what do u need to check all fuses are good

[@ernestdamo677]

Hi please i have Chevrolet equinox 2012 with the same code P2138 i have checked the the power and the ground and change the accelerator pedal but still the problem is there, please i need your help

[@ruffriffing247]

Very informative 👏 👌 👍

[@1AAuto]

+Ruff Riffing Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@stephanjeffries4989]

My scanner gives me code P2135. I have the messages service stabilitrac and traction control

[@phillipwaldie9406]

great vid guys !!

[@leobardorocha9191]

I'm just spend one thousand dollars to fix this problem in my 04 yukon reduce engine power 2 weeks ago and now I have the same problem and now the mechanic says The truck have a transmission problem that's way ...im sooo stressed

[@smokesomeweed2021]

Hey man. Recently bought a car and had to buy this paddle with the sensor like this one. But on the wiring harness to the clip onto the sensor, the person before me had tie them all together because they must've torn apart. How would I go about getting a new wire hardness to clip onto the sensor.

[@smokesomeweed2021]

Yeah all my wires are tied together. Is this going cost alot to replace? So far it seems to be working with the new sensor and peddle.

[@MrAshrr213]

Should you do this check on the throttle body side? Can't that be a cause for the code as well?

[@automotiveperformancemobil4030]

APP sensor and throttle are different. Like the Acura MDX, they use a stupid drive-by wire. The lead starts at the APP sensor THEN goes to the throttle body and in this person's case, the APP sensor is on the pedal so it will cost more lol

[@karelbludovsky4350]

hi. I have a big problem with chevy TB 02 and I don't know what to do. The engine is running normally, no light is on, the throttle is clean and the engine has no power and is noisy. Max 3000rpm and 55mil.. Do you have any advice? Thank you

[@MrPeterHaller]

I have a 2007 Hyundai Entourage 499900 mi on it. I've cleaned the throttle body possibly change the setting for the butterfly electronic control I also cleaned out the TPS, spark plugs look good wires are almost brand new, used a can of B12 to clean out fuel injectors, step on the gas pedal can't go past 50 mph really struggles, can I order the gas pedal accelerator sensor from 1A Auto for my vehicle and will this remedy at least let me know that there's nothing else that's wrong just the gas pedal. I do not get any check engine light or codes and I use the fixed OBD2 scan

[@1AAuto]

+Peter Raelian We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@peanutsmith1462]

Im having trouble with a 08 Pontiac vibe 1.8 L why can’t they just have a throttle cable and leave it alone

[@brandonbattle2996]

So if my purple wires reading high what do I have to do. I'm not a mechanic by far lol.

[@juliorubalcava95]

My 2011 Silverado did the same thing but my I checked the connector and it did have some bare wire showing. And I taped it up and the check engine light turned off

[@1AAuto]

+Julio Rubalcava Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@juliorubalcava95]

@@1AAuto a lot of the wires actually had bare wires showing

[@anthonycasey6064]

I have a 2013 Ford F550 super duty 6.7 accelerator e has no voltage Chase wires to computer going into computer have voltage on one side no voltage on the other side which both are posed to be a v 5 V

[@RG-od4jk]

I have no power but no codes or check engine light on any suggestions

[@1AAuto]

+RG 1 We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@Beanz84]

What to do if everything has been changed out and it's still doing it? That's the issue I'm having 😩

[@Roguekazekage]

Same

[@kingdanny622]

Disconnect battery from car and reconnect to rest everything if problem still exist. Let car run for a while and check the computer with OBD BlueDriver. If problem still exists maybe you did some internal damage to your transmission

[@ALIKHANENG]

I checked the wires they are ok and replaced the acclerator pedal but still there is problem. Car is GMC terrain 2012 3.0 V6.

[@rileynelson1864]

Same issue 2011 camaro replaced everything and still have the issue

[@fieldsofomagh]

My mil engine light has turned blue. Does that mean a change in the weather? God be with the days when the cable was either broke or faulty. Nice detailed video for the curious KZbin mechanic.

[@1AAuto]

+Tom OConnor Thanks for checking us out! 1AAuto.com

[@SuperScism]

I keep getting reduced power to my 2016 Malibu. Ive already replaced my MAF and MAP sensors. And its still happening.

[@pancholin1950]

Clean the throttle body with carburetor cleaner! carbon is probably interfering with its function!

[@hassanrahwan2044]

hi , i have GMC Yukon 2013 XL , have problem with code P2138 accelerator pedal position (APP) sensor 1-2 correlation . i changed the pedal and throttel and still have same problem plz can u help . thanks

[@luiscervantes1093]

Were u able to figure it out I have the same problem on my vehicle

[@daddyden72]

Same on my 07 smh

[@coreybrainard7653]

Did you guys go through the relearn process for the pedal and the allowing the throttle body to reset

[@rileynelson1864]

@@coreybrainard7653 yes relearn it and still have the issue, only thing I had was a corroded wire I repaired it it ran great for 2 days them back to p2138

[@fenanplazsemere4577]

Nice job bro

[@RichieB-s9l]

Welp i changed my throttle body and accelerator pedal. Still have a problem. Guess gotta dig into wires

[@seldonludlow6085]

This was a very good video don't think I can that ?

[@Wyndu777]

Great video.

[@coopsevy5664]

Very clear thank you!

[@mastercarp4599]

I don’t know why, my Chevy 2019 Silverado duramax 6.6 replaced 2 times new one in 1 year . Can anyone tell me what cause thanks?

[@miguelroman9847]

in my case purple and brown measure .3 ohm....

[@rlh9373]

Can it be the fuel pump

[@robinsonaenasi9800]

Thanks, that's my problem with my car..

[@orikedonautopesujakorjaamo22]

Thanks

[@SpywareSmith]

I replaced the pedal cleared the codes drove it for 110miles No codes. But when i left the car off for 6+hours or so. And try to turn it on code comes back up p2138

[@1AAuto]

+SpywareSmith We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@aaronbiliski2511]

I IMAGINE YOU JUST GROUNDED TO.... any piece of exposed metal under the dash there yes?

[@flunder203]

Solid comprehensive

[@1AAuto]

+Stephen Meinecke Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c