Hondata

Posted: **Tue Nov 18, 2025 11:05 pm**

The s300 gets sensor spikes when datalogging, I’ve checked all the ground and tried a new ecu still does the same

Posted: **Wed Nov 19, 2025 10:05 am**

Are you using resistor or non-resistor type spark plugs?

Posted: **Wed Nov 19, 2025 10:25 am**

Resister type

Posted: **Wed Nov 19, 2025 12:30 pm**

Post the calibration and datalog showing the issue

Posted: **Wed Nov 19, 2025 9:54 pm**

ERROR.s3d

And Im using the stock p75 base map

Posted: **Thu Nov 20, 2025 3:58 pm**

sam@hickshaven.com wrote: Wed Nov 19, 2025 9:54 pm ERROR.s3d And Im using the stock p74 base map

Posted: **Thu Nov 20, 2025 4:01 pm**

Who socketed the ECU?

Posted: **Thu Nov 20, 2025 4:19 pm**

I did All the soldier joints look fine

Posted: **Thu Nov 20, 2025 4:48 pm**

Have you tried this s300 on a known working ECU?

Posted: **Fri Nov 21, 2025 11:51 am**

You should try the s300 on a known working ECU to see if it is the ECU or the s300.

Posted: **Sat Nov 22, 2025 9:05 pm**

It’s the s300

Posted: **Sat Nov 22, 2025 9:30 pm**

Is there anything you can guys can do about it?

Posted: **Mon Dec 01, 2025 2:39 pm**

What is the serial number that is on the s300 board inside the ECU?

Posted: **Wed Dec 03, 2025 9:50 am**

It’s 58820

Posted: **Wed Dec 03, 2025 12:16 pm**

Post pictures of the soldering on the bottom of the ECU showing the areas that were soldered for the s300 socketing.

sensor spikes when datalogging