2018 Honda Accord 1.5T CVT Oil Dilution/Fuel Injector Failure

26463 Views 38 Replies 10 Participants Last post by Makabra, 11 mo ago

luvlylu

Discussion Starter · Nov 21, 2020

Purchased used 05/2019 from Honda dealership w/18K miles. Currently 48K miles (highway/commuting)

09/12/19: All warning lights on dash board came on - took it to the dealer, they cleaned the sensor, said it's sensitive. They happened to check the oil, 60% life left but 1 quart high. They changed the oil but didn't say what caused the increased level.
2019-2020: All maintenance performed at Honda dealership, no known issues
11/13/20: All warning lights + check engine light came on - took it to the dealer, due for an oil change. Paperwork shows "lots of gasoline in the oil". Codes P0172 (fuel system too rich) and P219E (#3 cylinder air fuel ratio variation). Dealer said I need new fuel injectors for $1500 but as a last resort, I can try a fuel injector cleaning service. Decided to try it. Left the dealer with no warning lights/check engine light.
11/14/20: Driving on the highway at 70 mph, check engine light flashes and vehicle stops accelerating. Immediately pull over. Get home safely, slowly.
11/15/20: Call the dealer, tell them what happened, "guess you need to come in for the fuel injectors".
11/17/20: Check the mass air flow sensor, clean it up a bit, clear codes.
11/18/20: Drive to work, vehicle is running like new. Leave work in the afternoon, check engine light back on. Go directly to the dealership. Request full diagnostics to eliminate sensors/ECM issues. Dealer keeps the vehicle to run diagnostics.
11/20/20: Dealer calls and says they've run all the diagnostics and the fuel injectors need to be replaced. I request copies of diagnostic reports. In addition to the previous stored codes, the following codes are present: U0401-68 PCM PGM-Fi System Malfunction, U0416-68 VSA Brake Actuator Malfunction,

Can't get the dealer to address or diagnose the oil dilution issue. Not sure I have any other option than to replace the fuel injectors which are only covered up to 36,000 miles and not 60,000. I looked for oil dilution/fuel injector issues all over the internet and couldn't find a lot associated with the Accord but did find a lot for the 1.5T Civic and CR-V. The 2016-2018 Earth Dream engine seems to be having Accord issues as well, with less frequency as the Civic and CR-V. Being told direct injection with not so great gas can increase carbon build up and lead to fuel injectors going bad. Not really sure what to think at this point because I don't feel like anyone has done the troubleshooting/root cause analysis that gives me confidence that this repair will resolve all issues.

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Reactions: 1

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Fired00d

· #2 · Nov 22, 2020

Have you contacted Honda Customer Service or asked the dealer when their factory rep will be there so you can talk to them? Below is the contact information for customer service....

Honda Automobile Customer Service, American Honda Motor Co., Inc.

800-999-1009

American Honda Motor Co., Inc.
Honda Automobile Customer Service
Mail Stop 100-5E-8A
1919 Torrance Boulevard
Torrance, CA 90501-2746

hondacertified.com

Monday - Friday
0600 - 1700
Pacific Time

Contact them and open a claim.

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EngTech1

· #3 · Dec 19, 2020

Never No Updates , just Gone - No Ending , some Resolution . .

EngTech1

· #4 · Dec 19, 2020

This ~ BS about 36K on Injectors that's Got to be ~ BS

luvlylu

Discussion Starter · #5 · Jan 20, 2021

An update. Honda issued a recall on the BCM. Since I originally posted, I’ve continued to have issues with the fuel injectors. However, there are times when every single warning light in the car is on, then periods when no warning lights are on. I’ve tried to find some pattern or cause/effect for it but can’t. Random things like engaging the parking brake or automatic high beams seem to trigger all the warning lights to turn off. I’m going to get the recall addressed, see what that does. I may still end up needing to replace the fuel injectors. I’m not convinced there isn’t a computer issue which is causing the fuel injector issue. I’m not at all convinced the fuel injectors just went bad.

Fired00d

· #6 · Jan 20, 2021

Have you taken your problem above dealer level (asked for factory rep or contacted Honda Customer Service) as I mentioned in Reply #2?

luvlylu

Discussion Starter · #7 · Jan 26, 2021

Fired00d said:
Have you taken your problem above dealer level (asked for factory rep or contacted Honda Customer Service) as I mentioned in Reply #2?

I opened a case with Honda Customer Service. Will provide updates when I have them.

Reactions: 1

Fired00d

· #8 · Jan 26, 2021

luvlylu said:
I opened a case with Honda Customer Service. Will provide updates when I have them.

Great... good luck... keep us posted.

susy88

· #9 · Feb 3, 2021

luvlylu said:
I opened a case with Honda Customer Service. Will provide updates when I have them.

Hi. Do you have any feedback from Honda?

I have 2018 Honda Accord and the Check Engine Light and all other warning lights came on as well. The code is P0301. I brought it to an auto shop and was told based on the readings from the diagnostic test #2, #3 and #4 injectors are overspraying. Their explanation for the P0301 code is that due to the overspraying injector #1 cut back the duty cycle time causing it to run lean and cause a misfire.

Anyway since Honda sells injectors as a set it would cause me $1500 to replace the fuel injectors. The problem is I am not getting the assurance from talking to the auto shop that replacing the injectors will absolutely fix what's causing the P code.

Also from talking to Honda Service Consultant if the 3 injectors are overspraying I would get 3 codes relating to the 3 specific injectors and not injector #1.

luvlylu

Discussion Starter · #10 · Feb 8, 2021

Update: Honda case manager contacted me this morning and they are approving a warranty replacement of the fuel injectors. My cost is labor only, not to exceed $300. The dealership will contact me to schedule replacement when the parts are in. I will have them do the BCM recall while they have it.

luvlylu

Discussion Starter · #11 · Feb 8, 2021

susy88 said:
Hi. Do you have any feedback from Honda?

I have 2018 Honda Accord and the Check Engine Light and all other warning lights came on as well. The code is P0301. I brought it to an auto shop and was told based on the readings from the diagnostic test #2, #3 and #4 injectors are overspraying. Their explanation for the P0301 code is that due to the overspraying injector #1 cut back the duty cycle time causing it to run lean and cause a misfire.

Anyway since Honda sells injectors as a set it would cause me $1500 to replace the fuel injectors. The problem is I am not getting the assurance from talking to the auto shop that replacing the injectors will absolutely fix what's causing the P code.

Also from talking to Honda Service Consultant if the 3 injectors are overspraying I would get 3 codes relating to the 3 specific injectors and not injector #1.

I would call Honda directly (contact info is in a post above), explain the issue and open a case. Your case sounds similar to mine. The outcome of my case is below. Honda is replacing my fuel injectors for $300.

Fired00d

· #12 · Feb 8, 2021

luvlylu said:
Update: Honda case manager contacted me this morning and they are approving a warranty replacement of the fuel injectors. My cost is labor only, not to exceed $300. The dealership will contact me to schedule replacement when the parts are in. I will have them do the BCM recall while they have it.

Glad to hear Honda is stepping up and taking care of you.

susy88

· #13 · Feb 8, 2021

luvlylu said:
I would call Honda directly (contact info is in a post above), explain the issue and open a case. Your case sounds similar to mine. The outcome of my case is below. Honda is replacing my fuel injectors for $300.

Hi. I did call 2 Honda dealerships and both told me fuel injectors are not covered under the 60k/6 yr Powertrain warranty.

I had the same auto shop which performed the diagnostic test replaced the fuel injectors for $1000 and so far so good🤞.

Fired00d

· #14 · Feb 8, 2021

susy88 said:
Hi. I did call 2 Honda dealerships and both told me fuel injectors are not covered under the 60k/6 yr Powertrain warranty.

I had the same auto shop which performed the diagnostic test replaced the fuel injectors for $1000 and so far so good🤞.

She wasn't speaking of dealerships she was speaking of Honda Customer Service...

Fired00d said:
Honda Automobile Customer Service, American Honda Motor Co., Inc.

800-999-1009

American Honda Motor Co., Inc.
Honda Automobile Customer Service
Mail Stop 100-5E-8A
1919 Torrance Boulevard
Torrance, CA 90501-2746

hondacertified.com

Monday - Friday
0600 - 1700
Pacific Time

However since you've had yours replaced it's a mute point now...regardless glad you got your issue resolved.

EngTech1

· #15 · Feb 12, 2021

First Off , THANK YOU for Follow Up . that's what makes a Great Site . . I also Agree Seems Injectors should Not be Going Bad this Quickly ..

I Wonder if there are Slightly Sticking which would Slow injector split Milla sec. causing ( Over Spray ) - .. ?

Then there's Oh My God - Honda doesn't Cover Special Machined Direct Injections that are Inserted into Head - By Their Manufacturing Process .. ( Which In Itself )
Could be Cause . . OK It Sure as **** should be Covered Under the Pollution Warranties - which Generally Go to 120,000 Miles .. as The Motor when Trying to Run Would Be a
Polluting Son of a Bitch ! ~ ( How's That ? ) with all Misfires & Oil Fumes from Dulltued Oil - HELLO

EngTech1

· #16 · Feb 12, 2021

The Injector Manufactures - wonder if that is Denso ?
As Denso has had a Bunch of Rejected Automotive stuff Going On . . If it is I could see Denso saying Screw You Honda as We Supplied Good Injector
Which You then Used to much Pressure to Install , besides _ Your Suppose to Start Motor & Run Test at Factory - ( There for Our Injectors ) We are Not Accepting Responsibility . .

Leaving Honda Manufacturing in USA on Hook - there Union is Throwing a Fit !
Then Honda would have to Step Up & Cover all Cost ~ Until Honda could Prove Fault . . & Denso will State Back it's Lousy Fuel Pressure On Start Up that's Causing it
( Ouch ) Heads will Roll !

Which Leads Us all to Honda should be Providing Additional Coverage - like a Maintenance Agreement - After any of Vehicles Need This Type of Repair . . . .
As If it's Not Going to Happen the Second Time , Then Injector Manufacture is Correct in Saying it is Process of Installing that Caused an Issue ..

EngTech1

· #17 · Feb 12, 2021

I really see No Reason for anyone Paying for any of this : What's Next Power Windows & Fuel Pump are Wear Items ( How H would even Accept this BS )

Oh Lets Not forget the Door Seals & Power Seats & Hinges on Clove Box , or Hinges on Engine Bay Hood - those are all Wear Items also , are Your F*&^^%% Kidding Me !

Here's Part Number Injector : 16010-5PA-305 - Genuine Honda Injector Set, Fuelset ~

EngTech1

· #18 · Feb 12, 2021

Dan sounds like Major Crap to get Your Honda Fix'd : Hoping above Customers were Outside Their Warranty ?

Good Luck with Your GDI Injector - Install :

EngTech1

· #19 · Feb 12, 2021

Also for Your Information - Concerns about Engines Head :

EngTech1

· #20 · Feb 12, 2021

Plus & Minus's of Injector Replacement : OMG ~ some of these Guys have a few Minus's and Few Plus .

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