Downloaded the FSM but wasn't sure on where to find the procedures for this. Does anyone know how to to do these 3 relearns without consult?

-Pedal
-Throttle Body
-Idle

I know it has to do with pressing the pedal X amount of times within X amount of seconds, etc. just don't know the exact procedures. I am taking the throttle body off to get a spacer made, so I will surely need to do these.

Check the FAQ that Ilyakol posted at the top of the forum and see if the VQ35 procedures work for your car before you take it off.

Nothing in that how-to thread. I did google searxh and found instructions for G35 and 350z...and Sentra. Dont know if the procedure is the same for M45 though as both if those instructions differed from each other as well.

ENGINE COLD
Perform "Accelerator Pedal Released Position Learning" .
Make sure that accelerator pedal is fully released.
Turn ignition switch “ON” and wait at least 2 seconds.
Turn ignition switch “OFF” wait at least 10 seconds.
Turn ignition switch “ON” and wait at least 2 seconds.
Turn ignition switch “OFF” wait at least 10 seconds.
WAIT over 10 seconds before this next step.
Perform "Throttle Valve Closed Position Learning" .
Make sure that accelerator pedal is fully released.
Turn ignition switch “ON”. WAIT EXACTLY ONE SECOND SHARP. Turn ignition switch “OFF”
THEN wait at least 10 seconds.
Make sure that throttle valve moves during above 10 seconds by confirming the operating sound. - Very hard to hear anything at all. Just believe this is happening by faith.

Now, here's the big change

Start engine and warm it up to normal operating temperature.

AND RIDE YOUR CAR FOR AT LEAST 15 MINUTES, this will make for correct operating temperatures to happen within the engine for the following steps. Warming your car in the garage in the morning aparently does not cut it.

Turn ignition switch “OFF” and wait at least 10 seconds.
Confirm that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
Repeat the following procedure quickly five times within 5 seconds.
Fully depress the accelerator pedal. Fully release the accelerator pedal.
Wait 7 seconds
Fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops blinking and turns ON.
Fully release the accelerator pedal within 3 seconds after the MIL goes off. Start engine and let it idle. THE ENGINE MUST BE STARTED WITHIN THE 3 SECONDS AFTER IT STOPS BLINKING, THATS HOW THIS LIGHT GOES OFF. THE SERVICE MANUAL DOES NOT STATE THIS, BUT IF YOU LOOK AT THE DIAGRAM WHERE THE ENGINE LINE ON-OFF IS, IT CLEARLY SHOWS YOU SHOULD TURN IT ON WITHIN THESE THREE SECONDS.

This is where your engine will start to learn the correct idle settings

Wait 20 seconds.
Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifications.

And now these instructions are even different from what I read previously. Is this confirmed for the 45?

It's what I did for my M35. Try it there's no harm

It worked for my Y34 M45. I'll admit I had to do it twice to get the CEL to flash (probably operator error) and then it was obious it was re-learning.

I think I may have not helped myself out the first time when the floor mat keeping me from getting the pedal all the way to the floor.

Confirmed working for M45. Although the throttle closed part...I do not hear anything from the throttle valve. Oh well.

this is a good thread

Why would this need to be done?

If you remove the throttle body...or plenum...I did both.

The throttle body can use a cleaning every 50-70K miles (at least) and doing so properly has the potential to make the position of the butterfly valve of the TB become unrecognizable to the car's computer.