[scott88]

Couple things first- I haven't adjusted ANYTHING yet, like the tps or even the fuel regulator- could these simple adjustments fix this? I'm thinking that this is probably a pretty common issue for those who have swapped motors. I'm not sure what to set the fuel pressure at (40?)

Also, the car doesn't have anything after the long tubes in yet, and the O2 sensors had to be "relocated" a couple inches farther down the collector to clear space. Will the car not stay running without backpressure? (How do open header cars stay running?)

I also converted the car to mass air- the connections were double checked and are all ok.

 

[88fiveoh]

I just had this problem with my car. But mine is still speed density. The problem I had was that I did not hook up the map sensor. I've been told that when you switch to mass air the map sensor does not need to be hooked up. Did you hook it back up?