Hondata

Greetings!

Seeking some advice in a light load hiccup I'm having. Occasionally I will get a buck/hiccup when very light on the throttle, it is almost like I completely let off the throttle and mashed the gas again. I have attached the calibration, a datalog from a cold morning warmup, and a 30 minute datalog on a drive to work.

I have attempted some street tuning, but by no means consider myself to "know" what I'm doing. I have been doing a lot of research and learning as I go. The motor has 1800 miles on a rebuild, please see below...

B20Z2 Block
Wiseco 11.4:1 CR Pistons
1994 PR3-1 (Someone did a mild port on intake side)
GSR Cams (No cam timing advance)

Any assistance is greatly appreciated.

Did this occur in the datalog, and if so, what is the time stamp it occurred?

I'm pretty sure it happened between 21 and 21:05, and again at 21:50 to 22. Is it normal for the TPS to be that all over the place in the log? I will log again in the morning and try to note exactly where it happens.

The issue was exceptionally bad this morning. I was able to get quite a few logs, ended the log and started a new as the issue presented itself. Looking through them I think I've narrowed it down to an issue with the TPS. You'll notice the spots in the log that will show like a 15" MAP reading, but 0% TPS. This is where I'm getting the "hiccup". A few of the occurrences I was able to look over and see 0 on the TPS display while this was happening.

Upon further investigation of Blip2, at 1:14 and beyond, seems to me something is causing the ECU to cut out. When the issue occurs the MIL comes on, and all sensors stop reading.

Replaced TPS, issue gone. The datalog below shows the smooth TPS reading, whereas the previous was all over the place.