shuts down when put in gear 00 ssei

[Nismo775]

Whats up everyone, I have a 00 ssei that has a freshly rebuilt engine. Recently wife was driving Bonnie and it shut off on her. Car starts up and idles normal for a little when cold. After letting her warm up and put the car into gear it shuts down. Just replaced the IAC valve and same issues, cleaned the MAF sensor as well and still has the same problem. Even disconnected the MAF to test it another way and still shut off when put into gear. No check engine light, and no codes coming on my obd2 app thing (torqueproapp) . I did notice that the right turn signal turns illuminates just a little bit on when i put the car into gear. The drivers side headlight works normal, but the passenger is dimmer than the drivers side light. When i turn on the High beams you can see the passenger side be as bright as the drivers side and then starts to gradually dim down. When i turn on the turn signals it starts to blink oddly than normal. Reverse lights are on (dim) when the car is sitting in park. Im thinking it could be electrical (alternator), fuel pump? or fuel filter? maybe a vacuum leak? Youtube mentioned Crankshaft pos sensor but the car shuts off when you give it gas. Any help or guidance would be appreciated. thanks everyone.

[Nismo775]

Replaces IAC valve cleaned the maf sensor and still nothing. Any other sensors I should check ?? It’s a SSEi