Hey whats going on. I just need some help and I recently bought a 91 sentra se with a sr20 swap and found two disconnected vacum lines One comes up with the fuel line with had no plug and I pluged it because I had a idle lope and the other comes from the T.B. with was pluged when I got it. My question is do these lines connect? The person I got it from definitly just threw it together and iv been fixing the jerry riggin. I have also noticed it has been chuggin gas could this be it? I am also thinkin it may be a lazy o2 sensor since I put a 2 1/2 to 3 inch exhaust and prolly killed the sensor. (Yes I know exhaust effects gas mileage) But not to the point its chuggin right now.

I also looked around on the search thread and didnt find any specific help so any help would be appreciated.

Also I have another question.

My speedo does not work the person who I bought it from said that the VSS on the tranny is a mechanical one and the ecu is electronic or vise versa he said bring it into a shop and they can fix it but I doubt that im just wonderin what you would think and what I could do.


THe engine also came out of a 93 nx2000.