ZachFK7
New Member
- First Name
- Zach
- Joined
- Apr 21, 2021
- Threads
- 1
- Messages
- 1
- Reaction score
- 0
- Location
- Canada
- Vehicle(s)
- 2019 Civic Hatchback Sport
- Thread starter
- #1
My cars been having an issue where the AFR bounces up and down mostly at idle (usually about 16 to 13).
It also does this at lower throttle while driving and isn't consistent until about 50% throttle and above.
The issue gets worse if the engines warm and gets turned off then back on. Then the AFR at idle fluctuates even more, I've seen it go as low as 8 and as high as 18 and the short term fuel trims go to -25%.
While driving it sometimes adds fuel while decelerating and pops a little.
With K&N intake it overshoots boost target by about 3 psi then corrects back to target.
The car is a 2019 civic hatchback sport 1.5t
88,000km
Engine mods
Phearable stage 1.5R
K&N cold air intake (car still has the same issue with the stock intake)
Invidia R400
I had a catless downpipe on and the car did the same thing but it's not on during the datalogs.
If someone could please take a look at these datalogs and help figure out whats wrong that would be great thanks.
It also does this at lower throttle while driving and isn't consistent until about 50% throttle and above.
The issue gets worse if the engines warm and gets turned off then back on. Then the AFR at idle fluctuates even more, I've seen it go as low as 8 and as high as 18 and the short term fuel trims go to -25%.
While driving it sometimes adds fuel while decelerating and pops a little.
With K&N intake it overshoots boost target by about 3 psi then corrects back to target.
The car is a 2019 civic hatchback sport 1.5t
88,000km
Engine mods
Phearable stage 1.5R
K&N cold air intake (car still has the same issue with the stock intake)
Invidia R400
I had a catless downpipe on and the car did the same thing but it's not on during the datalogs.
If someone could please take a look at these datalogs and help figure out whats wrong that would be great thanks.
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