Engine hesitation

Tiny
EUGENE18
  • MEMBER
  • 2000 HONDA ACCORD
  • 2.3L
  • 4 CYL
  • 2WD
  • MANUAL
  • 141,000 MILES
The car starts and idles fine, runs fine while driving normal, like not going over and changing gears at about 3000 rmp's. But if you down shift or make the rpm's rise too quickly like if your trying to pass someone, it feels like the engine starts to hesitate or lag. Could this be the catalytic converter stopped up? I did however scan the check engine light and two fault code did appear. P1166 HONDA Air/Fuel Ratio Sensor 1 Heater Circuit Malfunction, and P1167 which says the same thing. I had a similar issue with a 2000 s10, and it was the catalytic converter being stopped up. Thanks in advance for any help.
Do you
have the same problem?
Yes
No
Sunday, March 11th, 2018 AT 5:08 AM

2 Replies

Tiny
KASEKENNY
  • EXPERT
This could be a converter issue but with those codes we need to check the sensor, wiring, and ECM first. I attached the testing below for what we need to do.

Also, here are some guides that will help figure this out:

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/engine-hesitates

Once we run through this material let us know what you find and we can go from there.

Thanks
Was this
answer
helpful?
Yes
No
Wednesday, January 27th, 2021 AT 7:24 PM
Tiny
DANNY L
  • EXPERT
Hello, I'm Danny.

Those 2 codes are related to the heated oxygen sensors. Here are tutorials for wiring testing and oxygen sensor function including replacement:
.
https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-test-an-oxygen-sensor-02-sensor

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor

I've attached picture diagnostic steps below related to the codes you've provided for your car. Hope this helps and thanks for using 2CarPros.
Was this
answer
helpful?
Yes
No
Wednesday, January 27th, 2021 AT 7:30 PM

Please login or register to post a reply.

Sponsored links