2012 honda accord 4 cyl - Hello everyone I am back with another question. My honda accord just started acting weird. When i come to a complete stop the car seems to jerk or want to turn off. I replaced spark plugs, air filter, oil change. I also cleaned the throttle body but its still doing this when i stop. I dont know if its the catalytic converter or a bigger problem. Ive done all the preventative maintenance on this car as stated in manual. The car is now at 192,000 miles. Any idea what it might be?
You might want to watch this - similar car age with partially clogged fuel injectors
https://www.youtube.com/watch?v=KtY3HtpkEQA&ab_channel=ScottyKilmer
@glen_stet thanks will do
I dont know if its the catalytic converter or a bigger problem
What makes you think the catalytic converter is suspect? Is the engine struggling to accelerate?
Any idea what it might be?
It could be many things. A good place to start is always a diagnostic scan for codes and live data. There's a lot of information in the data stream, you may want to pay particular attention to fuel trims, system voltage, and MAF sensor output.
@chucktobias thanks for helping me out boss. At the beginning of the year i got a p0420 code then i added premium fuel and did the old italian tune up method driving it for a while on highway speeds and got rid of code. But as of now i have no codes so the only thing i suspect is that cat.
If the catalytic converter was clogged the symptom would be lack of power and not being able to accelerate - not threatening to stall when coming to a stop. If it's not something simple I'd take a look at live data for problems.
