Honda Pilot Emissions System Problem Sees Drivers Replacing Fuel Injectors

Gilbert Smith
May 2, 2022

While the Honda Pilot has few major issues to speak of, a problem with the fuel injectors may have drivers burning through gas at an alarming rate.

2016 Honda Pilot - Photo by Honda

Key Points

  • Honda Pilot drivers have reported transmission judder and emission system and transmission warning lights blinking on.
  • Affected models include the 2016-2018 Pilots, as well as a few other Honda nameplates.
  • There have been no recalls for the Pilot’s emissions problem, but a service bulletin covers the issue, and repairs are provided by the manufacturer to Honda Pilots still under warranty.
  • Correcting the issue involves replacing the fuel injectors, a repair that can cost around $500 if not covered by a warranty.
  • The rate of incidence for emissions problems is low, coming out to just one affected Pilot for every thousand sold.

Honda Pilot’s Transmission Judders and Warning Lights Likely Point to a Fuel Injector Problem

If you drive a Honda Pilot manufactured under the 20162018 model years, you might run into an issue with your vehicle’s fuel supply system. The first signs will likely be the emission system warning light blinking on, and transmission judder or difficulty upshifting, as reported by drivers in this Reddit thread.

The emissions system warning light will usually be accompanied by the transmission warning light, in addition to a few other warning lights as well.

In more instances than not, drivers have been able to get the car moving and get home safely after pulling the vehicle off the road and letting it rest for a minute. But it can still be pretty scary should it happen while you’re moving at highway speeds.

The emission problem light can come on for any number of reasons, but for 2016-2018 model Pilots, there is a clear pattern where the light is accompanied by the transmission light and difficulty in shifting gears.

2017 Honda Pilot - Photo by Honda

There Have Been No Recalls for the Fuel Injector, but There Was a Technical Service Bulletin

Honda issued a service bulletin in May 2019, covering the probable cause and solution to the Honda Pilot emissions problem. In November 2020, they issued another pair of service bulletins, including this one for the 2017 and 2018 models, and one covering the 2016 Pilot.

The likely cause, listed in the bulletin: it may be possible that debris from the machining process has been causing internal wear in the high-pressure pump and/or the injector.

In short, factory dust. No matter how clean you try to keep an assembly line, tiny bits of junk can find their way into the product now and then.

With debris getting into the components, what you eventually have is cylinder misfire. Ultimately this causes burning excess gas, inefficient vehicle performance, and long-term damage.

2016 Honda Pilot-Honda

Prescribed Fix for Honda Pilot’s Emissions System Problems Sees Dealers Replacing the Fuel Injectors

The good news is that the emissions problem has a pretty easy fix. All you need to do is get the fuel injectors replaced. The bad news is that, since it’s not a recall, you might not be able to get the repairs for free. If your Honda Pilot is still under warranty, you’re all set. If not, the repair costs will come out of pocket.

The key difference between a service bulletin and a recall: the former is an optional repair covered by warranty or by the owner. The latter is effectively mandatory and covered by the manufacturer.

Repair Pal estimates that the fix should cost around $500 for most Honda Pilot owners. So it’s not the most expensive repair in the world, but still, that’s $500 you’d rather not have to spend on car repairs. Thankfully, most 2016-2018 Pilots are still covered by their original eight-year/80,000-mile warranties.

If you’re driving a Pilot that’s still under warranty, check your VIN. You may be eligible for the repairs right now, and you might as well get them taken care of ASAP instead of waiting until the warranty expires and you’re left holding the bill.

The Honda Pilot Emissions Issue is Common Enough to Be Concerning, but Hardly a Death Sentence for the Car

In 2016, Honda sold around 121,000 Pilots. That model year has just 123 transmission complaints listed here with the NHTSA. Even if we assume every single one of those complaints to be for the emissions issue, that leaves us with an incidence rate of just one in a thousand.

That doesn’t mean you can throw caution to the wind, of course. You’ll want to be on the lookout for anything that might be wrong with your engine and powertrain. Even if you can avoid a worst-case scenario, those cylinder misfires mean you’re still going to be burning a lot of extra fuel to get where you’re going.

But, this isn’t a problem to lose any sleep over. As long as you catch it early, you should be able to prevent any long-term damage from occurring.

When you check your VIN for recalls, the results will list technical service bulletins that you are eligible for, as well. So, all you need to do is punch in your number and see if you have anything you need to get taken care of.

Photos: Honda

Frequently Asked Questions

By Stephanie Stephan | May 2, 2022

What Does Honda Emissions System Problem Mean On a Honda Pilot?

An emission system warning light indicates a problem with the mixture of fuel to air in the engine. In the Honda Pilot, the fuel injectors can go bad between 40,000-60,000 miles. An oxygen sensor near the catalytic converter may need replacing as well.

What Does It Mean When the Emission System Light Comes On?

If the emission system light is on you may notice misfire, rough idle, and poor fuel economy. A number of things can cause the emission system light to illuminate. A loose gas cap, faulty MAF or oxygen sensors, or failing fuel injectors may be to blame.

Owner Reviews

accountCircle Edwin R. DeBruyn on February 4, 2023
Emission light recurring problem on 2016 Pilot
For the last year I have been struggling with my very trusted repair shop owner with trying to eliminate the ‘emission warning light’ coming on and occasionally the transmission going into what best can be described as ‘limp mode’. In limp mode the transmission doesn’t shift and operates in what seems D 4 range with no shifting. I’ve spent close to $3,000 🇨🇦 on effecting repairs. I run now only on Shell no alcohol fuel. The SUV has 230,000 kms on it. No warranty. Despite repairs (all injectors replaced and fuel system cleanse agents etc) I still get transient emission light indicating. I carry a cheap vehicle code reader device which I use to ‘erase error codes’ now. Bottom line Honda…. This is just c**p. I’m afraid to resell and buy new because I will get beaten down on resale on my current unit… and… am fearful a new Pilot will have the same lack of care and attention by Honda to its clients. Who do I write to to effecta remedy to this recurring problem?
accountCircle Krafty on January 24, 2023
Emissions warning and OBD2 scanner
I have been getting the emissions warning for about 6mo on my 2017 pilot. I’ve heard about injectors, catalytic converters, and O2 sensors. When I connect my $50 obsolete OBD2 scanner most of the time there are no codes! I clear the codes anyway. After reset I traveled 800 mi using a few tanks of Sunoco premium gas at 26 mpg. When I return home I can go 2 or 3 weeks then maybe a warning might appear! Last night I went out with the warning on. The engine ran like I had a bad spark plug, the check engine light was blinking and it threw a code. I chugged to my destination and before returning I reconnected the OBD2 scanner land it ran smoothly and seemed very snappy! I really question a bad component in the system if the symptoms come and go? Next I’ll try injector cleaner, then replace the spark plugs. I’ll report back here. Last resort I’ll take it to a dealer. It has almost 90,000mi and has been generally agood vehicle but body is a little chincy!
accountCircle Bobbi Walsh on December 30, 2023
Emissions System Problems for over 150,000 miles
We echo the same ailments as everyone here regarding the Emissions System scandal with Honda. Just like most of you, we had problems starting about 50-60,000 miles and spent around $4-5000 on catalytic converter kit, etc. And that Emissions light lit up again as soon as it was back on the road. (No proof catalytic issue was truly found but dealer stoodby his assessment and wanted to replace the entire transmission! This was at the Bill Cole Auto Mall in WVA. We said, No thank you, and continued to drive it with the light on. No malfunctioning with the vehicle so we feel that it’s a scam. We now have 215,000 and other issues are starting - like wiring. We’re ready to get rid of it and go to an All-Electric vehicle where maintenance is not an ongoing concern any longer. No more Hondas in this house.
accountCircle Karen R on September 6, 2022
2017 Honda Pilot - Check Emissions Light
My check emissions light has been a problem for years.It was a constant on and off starting at 50,000. Dealer couldn’t diagnose when I brought in and light went off. Finally at 65,000, dealer told me fuel injectors needed to be replaced. They were covered under warranty. Light started appearing AGAIN. Brought it in and the fuel injector error code came up. Dealer reset computer and told me to drive it for a while. It stayed off for a bit but started reappearing again. Now at 80,000 dealer tells me it’s 2catalytic converters and will cost $5000 to replace. No longer under warranty!!!! I started using premium gas and emissions light went away.is it still a catalytic converter? Don’t trust dealer.
accountCircle KARL F WHITBY on January 20, 2024
Why does Honda still use subpar injectors in their Pilots.
My 2019 Pilot touring began last year with the check engine light coming on and off with emissions shown. My deal is that Honda has known about the faulty injectors, and they are still using them and will not take responsibility for replacing them. They simply waited out the warranty period knowing that they are defective. This is not good. Owner loyalty treatment. I purchased three vehicles with in 15 days from Honda, but this maybe my last go around with Honda. They updated the auto disengage, function last and now the car hesitated to come back on and will slip backwards if I am on a hill. This is very unsafe, and it is a pain to have always remember, having to cut it off.
accountCircle AA on December 20, 2022
This is a known problem
2018 Pilot - Emission System light off and on since last 2 years. Every time take to dealer- the light is off and they can not find anything. Finally now at nearly 70K miles, light on and took to dealer-fixed for free (said it is in warranty) although I am out of 3y/36k timeframe. Possibly they have known it and kicking it down the road and doing only if customer says they know it is a known problem. The service agent first said "let me find from Honda rep"- for heavens sake this is a honda dealership - I don't know who they wanted to ask. It always seems like a sham at dealerships these days.
accountCircle JC on September 15, 2023
Fuel Injector Kit Backorder
Our 2018 Honda Pilot received the emissions system error message a few days ago while we were traveling in Northern California. We took it to the Honda dealer in Humboldt County and it's currently sitting there waiting for the fuel injection kit that is on backorder according to the dealership. We don't know when the parts will be in and we are now stranded several hundreds of miles from home. We are not even able to rent a car because there's non available. Very dissatisfied with this situation and I'll reconsider buying another Honda.
accountCircle Linda Taplett on June 8, 2023
Misleading the consumer!
I’ve had a transmission problem for weeks with my 2016 Honda Pilot. I’ve had all spark plugs replaced and the coil box. Yes on my dime. I’ve read hundreds of consumers questioning this very problem. All saying they’ve tried this and that, and even the dealer service doesn’t know. WELL THATS NOT TRUE. I finally found two small Honda articles online saying they have added 10 years to the transmission warranty due to this very issue. Why isn’t this well know. ? Please see this bulletin as well as others
accountCircle Ellie on August 29, 2022
Fuel injectors need replacing.
I just found out that my fuel injectors need replacing in my Honda Pilot. That is not something in my budget. A short internet search shows that Honda knows about this problem, and has recently extended warranty coverage for the fuel injectors to 10 years from the vehicle purchase date or 150,000 miles, whichever comes first. So, I am going to try and get it fixed at Honda for free. I suggest everyone else who has this problem tries as well. If I succeed, I will leave an updated reply.
accountCircle Aurora Bolado on August 18, 2022
Fuel Injector
It's very difficult for me to pay the dealership 1,300. When you are in a fix income. Thats what they are charging me at the dealership. It seems as if they are to many incidents with this problem. The manufacture should have a recall in this problem a long time ago. It's not right they put cheap materials in these vehicles when you do your regular oil changes.
accountCircle B. Mills on September 23, 2022
2019 Pilot Fuel Injectors and Timining Belt
Emission System Failure Light came on. Took it the the dealer they said fuel injector and timing belt. They want to charge $4500. Both issues are on the recall list for 2019, but they say my vin isn't affected. If you're having. Problems report them !! NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION https://www.nhtsa.gov/report-a-safety-problem#index
accountCircle Daniel Greenway on February 21, 2022
Yet another problem with my honda pilot
No. Worse vehicle I have ever owned 3.5 years old 50,000 miles current list of issues: lift gate button - must replace entire backup camera assembly to replace $600, fuel injector misfire $1300 ( honda did agree to pay for half in the form of a honda gift card), Transmission skipping covered under warranty, and now push button start system problem.
accountCircle Kara on October 18, 2021
Dashboard lights on
I have a 2016 Pilot AWD EX, bought new. About a year ago the Emissions light came on. Took it to the dealer, but it had gone off by then. It needs fuel injectors replaced! I have 70k miles so my warranty is up so it’s going to be around $2,000. He said the ones he’s replaced have been around 30k miles and we’re under warranty.
accountCircle N@r3sh on May 30, 2023
46K multiple issues including Fuel Injectors issue now
46K.miles driven. Already multiple issues spent ~2000 plus replacing fluids, transmission jedder, accelrating issues. Now fuel emission lights on. Pretty bad experience with this Honda 2017 Pilot model. This is definitely changing my perception on Honda branch reliability itself. Definitely Honda is not going to be my next car make.
accountCircle Alberto on October 3, 2022
Check Emission Light could be due to PCV Hose
My emissions light keeps going on and off. I have been wanting to install my catch can oil. That's when i notice besides the PCV has been getting oily. And there's a noise leaking. Thats when I checked it. I changed it today. Voila, noore emission light check where there's more air than fuel it says.
accountCircle Keith on September 15, 2022
My brand new Pilot has emissions light on
My 2022 with only 1400 miles has the emission light on. I had to rent a vehicle and they called and said they need to drive it because I fueled it up before taking it in and it needs to have 3/4 tank or less. I bought it because of Honda reliability but red flags are starting to pop up! Geeez
accountCircle SDH on July 29, 2021
Fuel System Design Defect
Nice SUV overall but it has a fatal design flaw. If you choose to get o a 3rd gen Pilot, be prepared to have the fuel injectors replaced, possibly at regular 30K mile intervals. This is not an easy or inexpensive repair to perform. I would not recommend this vehicle because of this problem.
accountCircle lynn hedrick on March 1, 2023
2016 honda pilot
Awesone vehicle best advice for warning light issues from service A1 to EMISSIONS SYSTEM FIND A GOOD IMPORT MECHANIC!!!! THEY KNOW THE SOLUTIONS AND CAN DIRECT YOU AS THEIR EXPERTISE IS WORTH EVERY CENT!!! My mechanic sent me to honda for a covered warranty repair! Knoe your mechanic!
accountCircle Jennifer Lux on January 5, 2022
Miss my 2011 Pilot ?
The 2017 with less than 35,000 miles on it has had to have the entire fuel injection system replaced. Research tells me this is a problem that happens a lot. I loved my 2011 Pilot and as a result did not do enough research before I bought the 2017.
accountCircle John on October 1, 2023
Emission system problem
Run fuel injector cleaner through your tank every 3 fill ups. It will clear the code. I replaced my injectors after 75000 miles, mechanic showed me old injectors were perfectly clean. This is a computer problem on the honda pilot
accountCircle Abby on October 24, 2022
2018 Honda Pilot fuel injector issued
Don’t buy Honda car. I see a lot of people having issues about replace fuel injector. My car just run around 40,000 miles and Already have that problem. It cost over $1500 to have replaced. Honda should have recall on that.
accountCircle Lisa on March 15, 2022
Fuel Injector issues at 34,000 miles.
The emissions light came on and we are told it needs fuel injector replacement - and the cruise control stopped working too. After reading up on this problem - seems to be a regular issue with this particular Honda Pilot!
accountCircle Mike G on September 27, 2022
2019 Pilot Fuel injectors replaced 32k
Overall we love our Pilot. The emissions light problem came on at 32,500 miles. It was out of factory warranty by 6 months. Luckily they replaced them at no charge. Hoping it doesn’t have this problem consistently
accountCircle Austin on April 28, 2023
Sane Issues
Emissions System Problem. I bought the car used from a dealership it's a 2016 Honda Pilot with 115,000 miles on it. Haven't had it a week and my lights on. SMh
accountCircle Melissa S on November 12, 2021
2017 pilot leaves much to be desired.
Now, at a little over 100k miles, the fuel injectors have to be replaced. Honda needs to work on their fit, finish and transmission: fuel injectors.
accountCircle Wade Goodall on June 13, 2021
Injector replacement
I had to replace the fuel injectors at 76,000 miles. I’m finding out that Honda changed the injection configuration and it’s become a problem.
accountCircle Becky on September 13, 2023
Fuel injector replacement warranty
I was just told that my 2017 Honda Pilot needed new fuel injectors. I have 110000 miles. The dealer said it was coveted under warranty!
accountCircle Jason Y on October 1, 2021
Honda pilot has good features existing on it.
Have had emissions issues. As well as back door issues. Car runs pretty good other than that.
avatar Gilbert Smith
Gilbert Smith is a New Mexico-based automotive journalist who enjoys writing about cars, trucks, and SUVs. He is a longtime contributor to Vehicle History and a member of the site's original content team when it launched.
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