dash multi light

[2018civicetx]

i have installed a prl dp/fp combo catless after that problem started code in my dash ,running stock or ktuner basemap or tsp stage 1 dont matter they all give me the errors i disabled the 2 check box for o2 sensor and giving me code 0302 cylinder 2 misfire and the car smell like its running rich bad if i eresed the code it works fine for maybe 10 miles the start giving code again , returned it to stock map took it to the dealer they replaced the spark plugs and the injectors and same thing happening but when i plug in my ktuner to check code there is none i hit clear and back to normal for a few miles i need help

 

[EX-Terrestrial]

I have similar errors, but no tuning. This just started a few hours ago...went to move my car from the grass to driveway and all of these errors popped up with steering nearly locked up

 

[Brenster2223]

i have installed a prl dp/fp combo catless after that problem started code in my dash ,running stock or ktuner basemap or tsp stage 1 dont matter they all give me the errors i disabled the 2 check box for o2 sensor and giving me code 0302 cylinder 2 misfire and the car smell like its running rich bad if i eresed the code it works fine for maybe 10 miles the start giving code again , returned it to stock map took it to the dealer they replaced the spark plugs and the injectors and same thing happening but when i plug in my ktuner to check code there is none i hit clear and back to normal for a few miles i need help

I have similar errors, but no tuning. This just started a few hours ago...went to move my car from the grass to driveway and all of these errors popped up with steering nearly locked up

I know this may sound weird, but charge up the battery with a charger or drive around a bit to charge it and see what happens. Have gotten the same multi-error situation like y'all described, but was doing other, non modding work that required accessory mode to be on for a while.

Charge up and try it.

 

[EX-Terrestrial]

I know this may sound weird, but charge up the battery with a charger or drive around a bit to charge it and see what happens. Have gotten the same multi-error situation like y'all described, but was doing other, non modding work that required accessory mode to be on for a while.

Charge up and try it.

Thanks for the advice, but it ended up being a rat/rodent that chewed my wire harness...I'm so upset and now out $600....I originally thought it was the computer or something electrical but nope. Although my battery was checked as well. ?‍

 

[2018civicetx]

sorry for the late replydealership changed my injectors fixed the problem of misfire but light still came on after alot of reseach i found the computer for the turbo bypass valve wasnt connected back

 

[Oldfart59]

Just had the same issue with my 2018 LX Hatchback. Dealership said it was carbon on injectors. They cleared the codes and did the oil dilution recall at same time. 122,000kms on car.

 

[Oldfart59]

Just an update....this morning all of the warning lights have turned off! A couple of redline spurts the other day...don't know if this shade tree tune up helped but for now I am happy again

 

[Oldfart59]

And they are back again....... Never had this problem with the 2008 Civic.

 

[Oldfart59]

So finally changed the injectors at 148,000km after warnings lights stopped clearing themselves and starting became an issue.

Car runs smoother now and a side benefit the head unit now doesn't hang in no man's land when changing inputs. Go figure.

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