Whats going on with my car... help with codes please Last night as we all know I had to buy a new ECU, I picked up a P30-000 ECU and I'm throwing codes... I know that the first is a code 20, but I cant make out the last one. I recorded a video. Here's the 'specs' on my car 90 Integra Stock LS block Stock B16 head OBD0-1 conversion OBD1 B16 Distributor OBD1 injectors, etc. P30 ECU, not chipped. Here's the video, please let me know something. YouTube - code 20 and what else? Is the second code a code 13? or code 4? How would I go about fixing the code 20? I've read a couple threads saying its most commonly caused by a loose ground, however all my grounds are fine.