Hondata

Post a picture showing the bottom of the ECU showing the soldering that has been done for the s300. Make sure it is high resolution and in focus.

That’s about as good as I can get it

Some of the joints look like they may not have flowed very well, and the 4 pin connector one looks like it is not soldered completely, and I cannot see the last pin of the 4 pin connector, or the 4 pin connector is in the wrong position.

Yea I noticed that after I sent the pic touched it up a bit

It looks like there may be a problem with the through hole and it may not be making contact with where it is supposed to go on the board.

ok i will attempt to check it later is there anything you would recommend

I would recommend that you replace all the capacitors in the ECU.

https://www.hondata.com/products/access ... acitor-kit

just got my new s300 prepped ecu from burton racing dropped my s300 chip in and I get the same results as my other ecu still cant read any of my sensors or datalog the chip will take a calibration and the car runs and will rev passed 4K and no engine light is on. I got one solid green light and a red flashing light just lost at this point any assistance will be greatly appreciated

Is J12 cut in this ECU?

One of my ecu’s has j1 connected and my new one has it cut don’t know which is right

If J1 is cut, the s300 will not work in it.

ok so I put jumper in j1 and bingo all my sensors are reading and im able to datalog now so now I can book some time for the dyno and tune this bad girl in thanks again for the help spunkster your the man cheers