Hondata

I have a 2009 civic r18 n/a with takeda intake and tbs only. I had it tuned by vit back in 2016 and has been running great. I went to sell my flashpro and reset the ecu to stock and now the car stalls out frequently on stock cal as well as other basemaps I've tried through flashpro. Stupid me did not save the calibration from vit and he is gone now. Any ideas of what can be causing this?

Post the calibration you are running with a datalog. I can take a look to see if anything stands out.

-Ed

Here's a quick datalog of when the car stalled out at the end. I'm wondering if the maf sensor is shot and the previous tune relied on the map sensor and that's why it ran fine with the tune for years. Thanks for taking a look.

I see the the fuel trims vary. It looks like the MAF needs to be calibrated. Are you running an aftermarket intake? If so it would be best to switch to a Speed density calibration.

-Ed

yes I have a takeda cai. so switch to map instead of afm?

I just realized you mentioned the intake in the original post. Yes you need to switch to a speed density calibration (MAP). I am a bit confused. You mentioned you sold your flashpro. If you will no longer have it you would need to switch back to a stock intake so the car runs well.

-Ed

I still have it, was going to sell it. I'll give it a try, thanks for the advice.

No problem

-Ed