*FIX* 2006 Chevy Impala - Engine Power Reduced *FIX*

2006 Chevrolet Impala with reduced engine power code. I was unable to read the code with an OBD2 scanner because the plug wiring was malfunctioning, but I was able to research the problem and eventually find the fix.
Replace the throttle body to fix the issue of fluctuating idle, accelerator hesitation, and the eventual "Engine Power Reduced" code that shows up on the dash. \With this problem, the computer will intermittently limit the engine from producing enough power to go over 20 to 50kms.
This is a very common problem with this vehicle and engine, as well as similarly designed GM engines. I hope this fix will help others.
Link to the throttle body I used: www.ebay.ca/itm/321621484013?s...

[@chrisw6292]

Thank you so much. My daughters 2006 Impala with 229,000 miles was fixed in 15 minutes for under $100. I ordered the throttle body online based solely off his video; and it did the trick. Thanks for the simple tip of disconnecting the battery, I probably would have forgotten to do that. TIP...make sure you have a deep well 10 mm socket. The fact that I have to mention that, means that this is a fix that a novice can do. Thanks again!

[@StikManBrewing]

Very glad to hear it, Chris! Thanks for the deep socket tip as well. You're right, this is something just about anyone can tackle without issue. Take care!

[@dane351]

Thank you to who ever posted this video! Exact same symptoms, on same car and engine were solved in the driveway (in 45 min) instead of a two day trip to the shop, and for only a $125 part. God bless and Merry Christmas!

[@StikManBrewing]

Very glad to hear it!

[@workharder9429]

Its actually the acelerator sensor. Wich is gas pedal replacment very easy to change out.

[@reesyneesi]

Thank you for sharing this. It was very helpful and the instructions are well explained.

[@MH-cb6ll]

Wow. Simple fix. 175k on 2005 impala. Also, 175 on 2004 envoy and same exact problem. Remove throttle body and clean just as instructed. These quality videos save all of a ton of money. 375 us dollars to replace throttle body. Removed and cleaned Immaculate with. $7 which was 2 cans throttle body cleaner put back together and let computer reset. Runs like new. Thanks!

[@StikManBrewing]

Very glad to hear it!

[@stevebystrom2322]

Great video! Very informative...nice job.

[@robm9860]

Dealer replaced my gas pedal assembly on my 2011 impala with 75.650 miles at no cost due to engine power reduced/service traction control/service stability link/check engine light.

[@mistatiktok1075]

DID THIS WORK BECAUSE IVE CHANGED MY THROTTLE BODY AND STILL SAME THIS ENGINE POWER REDUCED/SERVICE STABILITY LINK/CHECK ENGINE LIGHT??????PLEASE HELP 🙏🙏

[@coreyb3438]

@@mistatiktok1075 same

[@Jiofreed1999]

I've changed my throttle body and I still have a engine power reduced.

[@UrbaNSpiel]

Great contribution my car just had this problem

[@rachelgonzales4342]

Hello everyone here's an update on our 2009 Chevy Impala Lt. My husband and I have had similar problems with the Reduce Engine Power so he cleaned the Throttle body about 4 times it ran good then he replaced the Throttle Position Sensor and it ran great for a month then it came on again and engine light so we went to get a diagnostic check and the code for the Throttle Peddle Sensor came up so now my husband replaced that so if anyone is going threw this make sure u check everything even the caps for the fluids . I'll give a update later but until then hopefully this problem is resolved with this car 🚗.😀

[@elizabethwaite9983]

I have the same car same issues! Hope you find a fix bc I need one too!

[@rachelgonzales4342]

Hello well here's an update my car ran great for awhile but now when we start it in the morning it has a whistle sound but it goes away and my check engine light came back on so my husband thinks the inject check valve we bought might need to get sent back cuse it might be defective but were getting another dianostic check again if it's something else ill give an update . but for those that has the same problem I hope u get ur car fixed cuse it's a headache.

[@LH81633]

Rachel Gonzales wasting money replacing all those parts!! Replace plugs and air filter put 1 gallon of laquar thinner in tank with ten gallons of gas till empty! If your car has 80,000 miles you should have replaced the battery already!! But most importantly if you follow manufacturers suggestions in your owners manual you can avoid all these problems!! My 07 implacable has 265,000 miles runs like a Rolex!! I’ve replace battery front hubs water pump

[@LH81633]

Google 1Aauto.com they have a great video on relearn process for Tb!! As you are not supposed to move flap manually!!! Also once you do the relearn process if problem persist then replace Tb sensor as it may have shorted out!!

[@pitzquintla]

Thanks for the video, save me some money and time.

[@finley614]

Change my pedal and it fixed my issue.

[@Annie-zd6rn]

My 2006 Chevy Malibu engine light is on and I took it to auto zone to get the codes read. The codes showed that the TPS/ TBI was going bad. So the guy told me to try using STP fuel injection cleaner first, and if it doesn't help, I may need to replace the parts. Can you help me figure this out?

[@laurenhicks3890]

it help my 2007 chevy malibu thanks saved me 257 dollars

[@StikManBrewing]

+Lauren Hicks Glad to hear it!

[@neilwilliams8608]

Couldn't you just replace the sensor? You can buy one for $35 to $45. A friend of mine had a code for throttle body sensor and he replaced his and the car is running fine. Awesome video. Thanks a lot.

[@StikManBrewing]

This was a while back, but I believe the throttle body sensor on these comes as part of the throttle body, one piece deal. The same goes for it's counterpart sensor on the accelerator pedal.

[@brandonGCHACHU]

You can but then I believe you have to have a dealer calibrate it. Who knows how much that would cost

[@triccio7043]

You usually don't need to replace the entire throttle body, just the throttle body sensor only. All you have to do is take the throttle body off and clean it really good. They even sell a spray can of throttle body cleaner. Then replace the Throttle Position Sensor (TPS) only which is the black part on the side of the throttle body and put it back together. No need to replace the entire throttle body.

[@mchalemartin265]

I figured as such after inspecting my throttle body but as it turns out, it's $25 cheaper for me to buy the whole throttle body than just the sensor lol

[@antoinehunter3776]

I'm having that problem on my 2007 monte carlo ss 5.3 Question do you have to relearn the throttle body cause I replaced the throttle body but it's still doing the same thing what else could it be

[@fgarcia160]

what's the name of that sensor?? I have to change that need to know to buy the autopart thanks and is that gonna take of the reduce power sensor sign on the dash ??

[@stephdigiorgio6383]

Im having the same issue on a 2007 chvy monte carlo ss. Service traction light come on and the the engine reduced. Could this also be the fix

[@dickieradd]

Thank you for this, I replaced my throttle body and it fixed everything, HOWEVER now my car idles at 2100 in park, but is completely normal in drive, any idea how soon the computer can re learn idle in park?

[@StikManBrewing]

+Richie Rad Here's a link to the idle relearn sequence: www.automotiveforums.com/t454660-click_here_for_instructions_on__quot_how_to_idle_relearn_quot_.html

[@jangonzalez5627]

what its the other thing that connect to the wire of map sensor and thottle body?

[@ThePrincessStardusty]

Hiya, is it the same on the V8 ?

[@ramsesrocha2799]

I replaced the throttle, pedal sensor after reading the OBDII computer. My next step is to replace the wiring from the throttle to the PCM like you did. What steps did you take to do so, did you check the resistance on them? if yes, how? any info or leads where to start in order to replace the wiring will be greatly appreciated.

[@Nope-by9ks]

Did you ever figure it out? I’ve done all that and still having the issue.

[@davidhall4867]

Does it have to be programmed after ?

[@drippscn4124]

Thank you

[@vernharris2708]

I got this thing fixed last year and it's acting up again am I going to have to replace it again

[@Cosmic_Deity]

Same issue with 2013 impala. Will this work? 3.6L 6 speed auto

[@TheJumbe75]

I have a 2016 Chevy impala limited…dashboard saying “starter disabled service throttle…anyone know what it means and how to fix..thanks

[@jordansoflylogs8526]

replaced mass air sensor throttle body camshaft magnet actuator camshaft position sensor and even my damn starter and the car still throwing codes of reduce engine stability and rough idle what do I do

[@StikManBrewing]

Sorry to hear that. It would depend on which particular codes the engine is producing. I was unable to read the codes on my vehicle because a po had messed up the obd plug wiring. But based on the symptoms I also changed out the accelerator pedal and the throttle body plug harness. Hope that helps.

[@JDunk228]

Will this work for 2007 Chevrolet LS? Today the REDUCED ENGINE POWER msg popped up and would not go over 5 mile per hour. Please advise.

[@StikManBrewing]

Use an OBD II code reader on the vehicle's computer to see what codes it's throwing. The reason for your computer reducing the vehicles engine power could be a number of different issues. Reading the codes your engine is sending to its computer will help narrow it down for you.

[@sonnymoses28]

I pulled the obd II sensor codes and it says pedal position sensor and throttle body and it gives the engine power reduced but if the car is shut off then back on it works just fine. The guys at o'rielly's think it is the pedal position sensor but I think it is the throttle body. What do you think?

[@StikManBrewing]

+NezPerceAirGunner It could be either tbh. They are part of the same system. I changed the pedal with sensor, then the throttle body harness, but neither fixed it for me. When I changed the throttle body itself is when it was fixed. It's a shame the codes aren't more specific. Your mechanics are guessing just the same as you. In this case, you'll have to just try one of them at a time until you find where the problem was, but it will no doubt be either in the pedal sensor or the throttle body sensor. Hope it works out for you!

[@sonnymoses28]

+Stikman Brewing Thank You I appreciate the reply! I think I will buy both parts off of amazon and replace both. I always bought Acdelco for parts. What brand do you buy?

[@StikManBrewing]

+NezPerceAirGunner Whatever is the cheapest usually. But whatever you're comfortable with should be fine. Let me know how it goes. All the best!

[@davidboda1640]

Huh

[@99SHS]

i have same problem on my caprice 2007 ltz v6, will it work with it ?!

[@StikManBrewing]

Use a code reader first. The issue could be the same, but it's best to narrow it down by reading the engine's fault codes first to be sure.

[@Legendinmyownmind75]

What if you put both throttle body and pedal on.and it come back on

[@louisianapurchasecuts4433]

thanks broh....

[@StikManBrewing]

+Johns da BARBER You're very welcome

[@jonathanavila9699]

Mine was the pedal position sensor. I had replaced the throttle body and it didn’t fix it. Try the pedal position sensor

[@johnmccollough6438]

I nav change the throttle.body gas pedal sensor on my 2006 chevy Kampala and it is still idling hi speedometer is going crazy any suggestions

[@StikManBrewing]

+John Mccollough Try plugging in an OBD II reader to see if the computer is throwing any codes. Might give you an idea what the issue is.

[@bearyblue85]

What symptoms were you having with your car? I have the exact same care, and while it's not throwing any codes, pretty sure the issues I'm having are narrowed down to the throttle body or TPS.

[@StikManBrewing]

The idle was jumpy and sometimes the throttle too while driving. When the HUD read Engine Power Reduced the car wouldn't go over 30 or 40 kph.

[@abigailann94]

my 2008 impala check engine light just came on an it marked me for reduced engine power. my car still drove over 45 miles an hour, I haven't punched it passed that. is my car still drivable? I'm curious because I drive my car to work everyday. if some one can pls reply to my comment that would really help. thank you

[@StikManBrewing]

I would highly recommend scanning the computer with an OBD2 code reader to see what code(s) the engine is throwing. That's the first step to knowing why it's reducing your engine power as a safety mechanism. You might get by driving it temporarily, but I'd avoid the freeway if you can. Figure it out asap, though!

[@cjmO117]

sounds like the problem I'm having. You said the idle is fluctuating? My 2007 impala has a traction control error and reduce engine speed. I changed the petal and it came back. I guess this must be what it is then. My car acted super weird and stalled out and I have to crank on it several times to get it started. when it did it was idling terrible and I have to let the car run for a while before I could drive it home. super weird. Maybe this is the fix then. I will check the throttle body wires, but I'm sure this might be the fix. thanks.

[@StikManBrewing]

+cjmO117 Get an OBD II scanner and plug it into the computer to see what codes it's throwing. That might tell you what the problem is. Worth a try before you go throwing money at guesses.

[@cjmO117]

+Stikman Brewing I did that, it was throwing a bunch of different codes. crank position sensor, cam position sensor. throttle position sensor and a misfire and a couple other codes. But it seems to be fine now. The engine light is off and runs great. When I did have the problems I wiggled the wires on the sensor and was fine. I'll be investing in a new throttle body and/ or wires if it happens again.

[@StikManBrewing]

+cjmO117 Interesting. Sounds like a wiring harness issue. Possibly a bad connection at a plug somewhere. At least it's working now I guess.

[@omarellis1559]

Hey will it work for a 2008 Ltz impala?

[@StikManBrewing]

Omar Ellis Should work if it's the same issue.

[@salehaltalha8818]

I have the same issue with my 2008 Impala but my problem isn't only that. I'm having my Impala since 2009 in Oregon then decided to ship it to Saudi Arabia after graduating last year cus I love this car. The biggest issue is that 2006-2013 Impala was not imported in any Middle Eastern country!!! So there's no part Supply. Chevy Malibu 2006-2013 is available in Saudi Arabia but I'm not sure if I can use Malibu parts to Impala. Even Chevy agents and Chevy parts suppliers don't have any idea about Impala parts! Shipping parts from US is a choice but it's costly! Now I need throttle body, breaks & discs and shock absorbers. And maybe I need more parts in future Selling the car is not a choice because it has all of my memories So who can advise me if 2008 Malibu parts fit 2008 Impala's?

[@wolfraddishtv898]

Why don't you Google to see if the parts are interchangeable? Instead of asking random people in the comment section 🙄

[@MostlyzPotatoe]

I have a 2008 chevy impala lt, I recently got it up and running again, before i parked it, i had replaced the throttle body, so i know thats not the problem. Any ideas what it could be? I am still getting the engine power is reduced and service traction control.

[@bigwhopp100]

Try speed sensor

[@Althazarcrts]

Same problems with mine, any luck with fix?

[@ThePrentisturks]

Have you had any more problems since?...I'm still having readings saying reduced engine power and service throttle body system, after I've changed the throttle body and accelerator pedal

[@StikManBrewing]

+ThePrentisturks Have you read the codes with an OBD II reader? I had also changed the throttle body wiring harness plug. Can be a bad connection in there.

[@isaiahtezeno88]

Did you ever get yours fixed? @prentisturks

[@ThePrentisturks]

@@isaiahtezeno88 no I recently seen a video say that there's a sensor behind the front passenger tire that's the fix

[@ericgonzalez9422]

@prentisturks what’s the sensor callled I tried replacing accelerator pedal and whole throttle body and still getting this problem

[@SirSlumScum]

@@ThePrentisturkscould be your passenger front wheel bearing

[@kaytlynsovereign8218]

same issue with our 2008 Chevy Malibu already replaced throttle body and same issue still

[@derriklee287]

kaytlyn sovereign cam sensor most likely

[@gold4honey]

same here. new throttle body. will not turn over. starter does not seem to be engaging.

[@StikManBrewing]

Could be throttle body, accelerator pedal sensor, or wiring harness plug.

[@youngspell]

how did you remove the two nuts under the throttle body? what size ratchets?

[@StikManBrewing]

+youngspell I can't remember the socket sizes now, but if you plan to tackle this job I would hope you have enough understanding to be able to figure that part out.

[@TheYungC214]

10 mm

[@jarriouscoleman1465]

You have 2 nuts that are 10mm and under that bracket ar 2 more that are 10 mm, but before you're able to remove those 2 lil pipes you need to follow them to the front of the engine just under the bottom side of the front valve cover there's a one 13mm bolt that you need to remove, now you can go back to the bottom of the throttle body wiggle the hoses/bracket/pipe or whatever you wanna call it off and take the other 2 10mm nuts out. Its really easy just sounds like a lot

[@MrJESSROX]

replaced the throttle body still getting the code!

[@nomansland2111]

I had the same exact issue with my 2009 Impala, had the throttle body and gas pedal accelerator replaced 2 weeks ago now it's running like a CHAMP and no more engine power is reduced or service traction control messages are showing up

[@StikManBrewing]

Awesome! That's a good feeling for sure

[@vizitor11]

I get the same code on my 2009 Uplander and after much cleaning I have figured it to be the throttle body actuator sticking and acting up. I'm going to replace it, but yesterday I even got an engine no start code which shut off the engine. So in an emergency to get going, I wacked (not too hard) the actuator body a few times with a hammer to loosen up the gears and whatnot in there. Giving it the shakes got me going again with no code.

[@StikManBrewing]

Yeah, I believe they may have plastic cogs in there that lose teeth. Don't quote me on it though. Either way, the problem is often narrowed down there.

[@demetriustheophile6023]

How to change the blots on a 3.9 engine

[@jwhit31995]

My alternator was the cause of mines.

[@-MrRichBiker1967]

its easier to to just make sure throttle body sensor wire is fully seated, after cleaning throttle body, itself..runs like a champ. now.

[@LH81633]

- MrRIchBiker why not fix the underlying issue to start with!!! Like changing your plugs and air filter pour cleaner in tank to clean Tb and fuel injectors!!! That’s the fix!! Tb is dirty preventing flap from operating properly in wich cuased Tb sensor failure!! Also should have replaced battery at 80,000 miles!! A bad battery will cuase misfires that will cuase build up!! Kapish!!!

[@OlgaRodriguez-ct8im]

my 2006 impala has that same problem but we replaced the throttle body n battery terminals n oil pressure sensor and its now throwing out a code of map n they tell me to take it to chevy nobody ever got it fixed

[@StikManBrewing]

Have you hooked an OBD II code reader to the computer's plug-in to read the codes the engine is sending?

[@fly7881]

Where did you buy your throttle body?

[@StikManBrewing]

Tbh it was years ago and that memory is long gone, sorry

[@jcb355]

The canister purge valve can cause 'Engine Reduced Power' problem also. (2012 Impala) $63

[@frmnprz]

My mecanic say the new throttle body need to be programmed is that correct ???

[@StikManBrewing]

Nope, he's wrong. Find yourself a different mechanic.

[@blacksharkswimmer3729]

Haha Machanics try get money any way they can

[@blacksharkswimmer3729]

How in the hell can he program a throttle body

[@jimmiles33]

@@blacksharkswimmer3729 Most european cars do actually have the ETM programmed to the car.

[@steve210sa]

20-50kph?? Wat r u Canadian??

[@Sv_bleu]

I changed throttle body n it still cuts off n says speed limited what else could it be sir

[@LH81633]

champagnebleu you need go thru a re learn process if you moved. Anything manually,, google 1Aauto.com great video on relearn process

[@LH81633]

champagnebleu also!! Need address the true issue,, bad fuel ratio causing build up wich cuased sensor to short out!! Replace spark plugs gap/tourque to spec vital!! Replace air filter and throw 1 gallon of laquar thinner in tank with ten gallons of gas run till empty!! Also good battery is crucial as these cars no longer have distributors so they rely on battery power to power the coils!! Good luck

[@dadrules714]

My son got 2006 Imp stuck at Kmart(of course it's almost dark and POURING LOL) & Who ya gonna call? Dad. He's pulling an OBD code of P0641" reduced power" Car was in Limp mode would run above 25-30 mph prob starting. Code is relating to EMC detecting 5V improper value. Now this could be as simple as loose Neg Batt terminal. But I'm going to reference the MAP sensor and the TPS because he was cleaning & gen Mtnc (It's his first car) I'm only pulling the one code. I'll bet something is loose that shouldn't be. I'll keep ya informed. Now if someone knows how to fix the Temp ga/ fuel ga let me know. We replaced the sending units I'd hate to tear the dash apart replace whole cluster. May just get some extrnl gauges. Thanx.

[@gold4honey]

dadrules714 what did you find out?

[@Vopian]

Imma try this my car just started doing this everyone keeps yelling me it's cause it's overheating but idk how with no leaks of any kind

[@MrRmdinero]

what size socket do i need

[@triccio7043]

Two 10mm bolts on top and two 10mm nuts on the bottom of the throttle body.

[@shaunmclay3892]

What was the code

[@goodfellasinc.5648]

Why didn't you test it before you pulled it off to make sure what you're saying is going on obviously it fixed it but it could have been something else wrong with it instead of the butterfly you're saying I had the same problem and mine was a knock sensor

[@StikManBrewing]

Who are you talking to?

[@kalanishields7340]

Could I get the throttle body with fuel injector on it and still get the same fix

[@MrMoneyman7744]

What code ?

[@dancingbam4240]

Just happened to me.. but my gas cap was open lol. I closed it and problem solved lllol

[@truthseeker6534]

my brother car has this problem now

[@guyandottewhiskers2331]

If your in the USA we don’t use kmh lol

[@cisco1981]

GM has a special coverage replacement for this issue replaced for free

[@bigeazy757]

Cisco R. ??

[@cisco1981]

Ericka left a reply below also the dealer will only do it if your check engine light is on and it pulls the code for it.

[@theanswer3132]

Cisco R. How true is this ??

[@cisco1981]

Ladaryon Martin , it's true check your vin online or call them, engine light has to be on for this, they hook it up to check it, they wouldn't do mine yet because they couldn't pull the code up even though it's a known issue, good luck

[@bigeazy757]

Cisco R. so what do i do

[@RobsTechs]

see I replaced the throttle body in my girlfriends Car but didn't fix the problem I'm having which is the car feels like it won't shift out of first gear on her 2008 Chevy Malibu LS New Style

[@kaytlynsovereign8218]

sleepybird09 it's an automatic sorry just noticed the comment

[@damianperry39]

can i use a 2009 throttle or a 2006 chevy monte carlo throttle on a 2006 chevy imapala

[@StikManBrewing]

Damian Perry Check if it's the same part number.

[@chasekeys303]

+Stikman Brewing I'm gonna try this, but I'm gonna clean out my old 1 1st before buying a new 1.

[@carloscavasos9539]

+COREY KEYZ Did cleaning it out solve your problem?

[@chasekeys303]

Yes.

[@carloscavasos9539]

+COREY KEYZ Thank you gonna try that first myself

[@benmoose2957]

Yup plastic gears that wear out. Right behind plastic cover Engineering at its finest

[@guyandottewhiskers2331]

What the heck is kilometers lol we live in USA it’s mph

[@chickenfarm09]

These cars have problems all the time.

[@StikManBrewing]

I think it's fair to say that can be said about alot of vehicles, especially domestics. We've owned 2 Impalas over the years and they certainly had their fair share of issues. I can't argue with ya, bud!

[@LH81633]

chickenfarm09 itsnot the cars!!! It’s the owners not following the owners manual manufacturers suggesting for maintenance!!!!!

[@frederickmeyers8965]

Wow these Chevrolet are loaded with issues huh...

[@Koa_n_Mio]

This problem has happened 3 times now, each time taking a girl out on a date, any other time it's fine.

[@roni1976]

May want to just use mid grade fuel... ijs

[@Dlite2323]

YOu did NOT actually remove the parts...! Why even show this vid... (Next time TAKE IT OFF so we can see)

[@StikManBrewing]

No

[@wendellworth353]

You just cost the customer more money than he needed to spend, not good if you are in business. There is a kit for the throttle body position sensor you can buy for about 35.00. No need to replace the entire throttle body. Nothing wrong with it. If yu don't know about this kit, check with your parts supplier.