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Bogging and bad TPS readings

Posted: Fri Jun 14, 2024 10:58 am
by finsky
Hello,

Vehicle:
- Civic EG
- K24A3 / K20A2 frank
- ECU : 37820-PRA-E02
- K-Pro V4

Issues:
- TPS reads 3% - 97% when engine is off, -2% - 60% when engine on.
- Revving while at a stop, the injectors cut out every other second.
- When moving on slight throttle, the injectors will cut out every few seconds or so. Giving more throttle will make it mostly go away but it'll still hesitate a bit.
- Idle is fine.

Context:
I tracked it yesterday and it started hesitating at low throttle as the day went by. Additionnally, I've had concerning overheating issues at the end of the day, before realizing most of the coolant was gone. But I assume it's a separate issue given the wrong TPS readings and the injectors cutting out. Tough day :)

I don't have any friends running a similar setup so I don't have the option to swap parts and see what works and does not. I've searched the forum and I suppose it could either be a failing TPS or a failing ECU. Any input before I start spending money uselessly ? :)

The issue is visible where the injectors cut off on the datalogs.

Thanks !

Re: Bogging and bad TPS readings

Posted: Thu Jun 20, 2024 2:57 am
by finsky
So, the issue is now gone and I don't really know what happened. I will be getting an Acuity TPS just in case mine would fail. I got some replies on the k20a.org forums so I'll leave the link for information purpose: https://www.k20a.org/threads/bogging-an ... id=3360223