I have another question; this one is related with ECU/OBD-1 and tuning…
Let me explain the whole story.
When I bought my BB1 it was tuned at approximately 240 HP. There were some upgrades: Honda Accord Type-R camshafts, Skunk2 intake manifold & throttle body 76 mm, H&R cold air intake, SMSP style header, High flow cat – Magnaflow, Greddy EVO catback exhaust system...
Since this is my daily drive, and I’m not some young racer I did down-grade to stock.
I bought stock ECU fot BB1, because I didn’t want to spend money on addition downgrade tuning. So ECUs were just swapped.
But back home, when I looked that “tuned” ECU it looked so “normal”. I googled the model (37820-P28-A01) and found out, that this is for D16Z6 or Civic Si,Ex (OBD-I Honda ECU Connector Guide
And here is my question – is it possible to use this ECU with proper tuning on prelude and get out of it 240 HP? My guess is, that’s not possible and they gave my wrong ECU…
I forget to mention - previous owner claimed, that he bought it in US, that it was larger than stock one (this one it’s not), and he spent 400$ on it. This one is a lot cheaper on ebay – example: 93 92 94 95 HONDA CIVIC 1.6L M/T ECU #37820 P28 Virgin D16z6 Manual 5 speed OEM | eBay