S300 Not showing any values but is connected

s300 and SManager software questions & answers
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Lanboat
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Joined: Fri Feb 18, 2022 6:17 pm

S300 Not showing any values but is connected

Post by Lanboat »

I have a hondata s300 v1 board that i got for my turbo build. It’s installed in a p28 ecu so i have an adapter that connects the two together from my stock obd2 harness. The issue i’m having is that when i plug in my cable from the board and turn the key to accessory, S manager shows that the board is connected and all drivers are installed but i get no readings. The lightning bolt at the top is also on. No Tps or any values update correctly. I can start the car but it runs really rough pretty much the same as with the stock ecu (because no tune is recognized obviously) i haven’t tried to upload a tune because i cannot get Smanager to even recognize afr or tps when it starts. i have used the stock itr map but it essentially changes nothing as if it’s not even plugged in. Hondata board shows a green d4 light that stays on all the time but my d2 light never comes on at all. not red but just not on at all. i thought it just might be a bad ecu connection but dealer sent me pictures of it working with d2 on green and connected to s300 properly. could my jumper harness be a problem? Although I would have thought it wouldn’t recognize the board at all if it was. or is there something i’m missing?

98 Honda civic with stock internals d16y7
turbo with 7lb wastegate
walbro 255 fuel pump
blox 550cc injectors
Hondata serial number: 2665
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Hondata
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Re: S300 Not showing any values but is connected

Post by Hondata »

Upload a calibration to the ECU.
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Ichiro718
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Re: S300 Not showing any values but is connected

Post by Ichiro718 »

What do you mean upload a calibration to the ECU? Just hitting upload the tune?
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Spunkster
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Re: S300 Not showing any values but is connected

Post by Spunkster »

Have you uploaded the calibration to the ECU?

What are you clicking to start datalogging?
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