I have a 2002 Nissan Maxima GLE it starts up fine, but once I put it in reverse the engine dies.I can restart it and after it warms up it does fine, but sometimes in drive it will die as well. Can anybody Help?

Sounds like the revolution sensor. There are more than one if I read correctly on that Maxima and could cost about 800bux to fix.

when was the last time you had a FULL tune up

there is a problem with your iginition timing. it is most probably overly advanced. have an experienced mechanic check your ignition timing. the mechanic should check the distributor, camshaft, and crankshaft timings.

Is the check engine light on. aseems to be a vaccuum leak. next the mass air flow senor is bad.. Good Luck!!!

If your`check engine light is on, have the codes read to find out what is causing your transmission problems, but yours seems to be a common problem, the usual symptoms of a failed speed sensor in the 00-03 maxima. Have it checked out.

Can't really say. But you need to put a fuel pressure gauge on it.
Could be EGR, throttle position sensor, etc., but don't see how the starter could be related.
Have to wonder if you left a wire off or put one in the wrong place.
The main power for the fuel injection and ignition come off the main starter positive. And a cold start wire comes off the starter solenoid.

remove dog house locate test port and install guage should be 45-60 psi

sounds like solenoid on starter is worn, replace starter.

Primary ignition fault. Reasons: Bad distributor cap (most likely) or ignition control module/ignition coil.
Hope that helps
Good Luck

faulty air regulator