POS350Z

.....the piggy back adapter...when pluged into the factory chip only plugs into roughly 75% of the factory chips little electrical ports....this is how it's shown on the instructions...yet the entire piggyback (w/chip now attached) plugs into the factory computer.....my question is aren't the other 25% of the factory ports needed? BTW per my other post my car won't start....just trying to get my facts straight before trying to fix it tonight.....


350Z