OK well I finished my LS/VTEC swap yesterday and I have ran into a few problems. IM running a B16 head and ITR manifold. When I started the car it did not want to idle, not like an IAC problem but it would idle really low then shut off. So I adjusted the screw on the throttle body and adjusted the throttle cable. Still would die. Thought it might be a vacuum leak. I checked every line on the manifold. Nothing seemed out of place. I did notice that when I remove the vacuum line that goes to the FPR that it would idle fine. I put the line back and it would die. I thought that maybe it could be the ECU so I take the P61 out and swap in my P75 to see if that might fix it, and it idles great with the P75 and the FPR vacuum line on So what could be the problem? Anyone have this problem before. IM stumped
Omar