For starters i did search as much as i could!
So my 03 350z keeps throwing the code p1229 (Sensor Power Supply). And when it throws it, the throttle body will not let me rev passed 2-3k. Happens almost 3 times a day. Previous codes it has thrown were p1446, p2122 and p2138. Those codes don't come up any more, its only the p1229. If some one could please shed some light, keep getting stranded on the side of the road(luckily i have a scanner i can erase codes with). Even when i turn the car off and recycle the ignition, the car is still in safe mode until i recycle it about 3 more times.
Thanks

 

:inb4letmegooglethatforyou:

 

Now I do have a short ram though. So my Maf might be dirty, but the Slip light is on so I'm assuming it's associated with vcd. But even if I drive with the vcd turned off, it will still happen. One thing I read was that if your alignment is really off, it can cause your slip light to come on. I reall hope I don't need a new throttle body -___-

 

https://my350z.com/forum/maintenance...limp-mode.html

Last post has resolution.

 

So it's probably a wiring issue. I'll start testing and see what I can find.
Thanks.

 

Update: erased the codes with a different scanner and it ran fine for a complete day until tonight. I'll check the fuses tomorrow. Any ideas on where I should start checking for shorts though?

 

Another update:
Checked all the fuses and they were good. im going to clean the maf next and then relearn the idle and throttle body and see if that helps. As far as wire problems, what area should i be looking at according to the solution found in this link?

https://my350z.com/forum/maintenance-...limp-mode.html

 

Now these popped up, p0550 and p0451.

 

Bumpppppp any one

 

did you ever figure it out? im in the exact same situation and its been that way for a month now

 

Has anyone been able to fix this issue..I have the same error codes and the car keeps going into limp mode

 

The

 

See

 

i struggled for like 4-5 weeks with mine same problem, it was on safe mode, all 4 codes in,i got a friend thhat works for nissan dealership, he took that car in and couldnt figure it out, then finally, i figured it out myself,

 

what did it end up being I’m having the same problem?

 

he hasnt logged in for 8 years, might be waiting a long time for an answer