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s300 troubles.

Posted: Tue May 28, 2024 4:43 am
by iksan12
Good morning. Few days ago my car started to react strange , while driving the check engine light would come up and the engine will start bog down and sputter. My vehicle is 93 Del sol Si. I have been using s300 for probably 2 years now with no issues. Things that i have done when the problems happened are replacing all the caps on the board its a P06 ECU. Reflowed all the connections on the 28 pin male pin headers to the board. When i unplug the ecu and leave it for a bit and plug it back in the 2 led on D3 and D4 are green and the car works fine for like 5 -6 minutes then it starts sputtering again but the hondata led's are not working or just D3 led is green. When this happens Check engine light comes on too. I tried connecting and read the codes but there is no stored faults. I did check all the connections to the hondata and ecu everything looks fine. Maybe my ECU is gone im not sure... Any input is appreciated. Thanks guys.

Re: s300 troubles.

Posted: Tue May 28, 2024 11:11 am
by Spunkster
What is the serial number that is on the s300 board inside the ECU?

From Help, About, what is the version of software you are using?

Re: s300 troubles.

Posted: Tue May 28, 2024 11:20 am
by iksan12
Hello , the serial number on the board is : S300 61421 ( hologram sticker )
There is another number S300 III r16. Im running the latest firmware i literally updated it yesterday. Not sure about numbers because i cant connect to the unit at the moment. Just to add something - When the LEDs on the board are not working the vehicle still primes the fuel pump but does not start.

Re: s300 troubles.

Posted: Tue May 28, 2024 12:13 pm
by Spunkster
From Help, About, what is the version of software you are using?

Re: s300 troubles.

Posted: Tue May 28, 2024 12:53 pm
by iksan12
Hooked up the Hondata
Software version 2.8.6
Firmware version 21

Re: s300 troubles.

Posted: Tue May 28, 2024 3:35 pm
by Spunkster
Do you have onboard datalogging enabled?