Hondata

I have a 2000 Integra Type R that runs fine on the stock ECU.
I picked up a new s300 pre-installed on a P28 ecu. I uploaded the base 2001 ITR map and it looked like everything was connected. I was able to set the TPS limits and when trying to start could see rpm, etc. changing, but it wouldn't fire.

A bit of History:
I had a chipped ecu that I thought died on me a few months ago. I had this ecu for years and never had an issue. I was driving down the highway and the car completely died. I plugged in the stock ecu and drove home with no problem.

I picked up a new obd1/obd2 adapter to make sure it was the ECU that failed and not the adapter. The new adapter didn't fix the problem so, I figured it was the ECU.

I picked up the new s300 pre-installed into a "new" p28 and I can't get the car to start.... It acts like it did when the car died. seems like there isn't any spark

Any advice would be helpful.

Post a picture of the adapter harness used.

Have you tried the ECU on a known working vehicle that is currently running an OBD1 ECU?

What is the serial number that is on the s300?

These are the 2 harness.

These are the 2 harness.

I have not tried the new ecu on another vehicle. My car ran the chipped ecu for 8 years no problem until it died on me on the highway

The fact that it stopped working with the chipped ECU and is not working with the s300 and OBD1 ECU, sounds like there could be an issue with the vehicle. You should try the ECU on a known running vehicle.

That's my fear. Not sure what could be wrong considering the car runs no problem with the stock ecu....

I will see if I can find a car to test the ecu's on and keep looking for what might cause an issue like this on my car