Hi!
I have a P30 ECU and desoldered all the soldering points and installed the 28 pin socket, the 74hc373 chip and the 1k ohm resistor. I did not install the capacitors and the jumper (J1). When I put in the ecu, because i needed to pick someone up, the CEL showed up. So i tried to check the code, but there was none, just solid CEL. What could be the problem? All the soldering points are fine. But I don't think that it matters, because there is no jumper wire installed yet so the whole area there is inactive, right?. Damn, I hope i didn't frie the ecu...