R33 issues

[Boosted Ejt]

R33 issues

Hi sorry if this has been covered before but my car would run fine then all of a sudden it was misfire and hesitate really badly on acceleration then would just stall then when you start it again it will be fine for a bit before it does it again im totally confused i had a computer scan on it came back clear, has become undrivable so just today i also tried to check boost while car was idle boost will come on then would struggle and stall, any help be greatly appreciated cheers

[Boosted Ejt]

I have tried a few things so far checked vacuum leaks, cleaned afm, changed fuel filter with no luck 

[KiwiRS4T]

Fuel pump on way out?

[Boosted Ejt]

Im not too sure it could be started it today and i have a real loud whining noise once the car starts, if thats the case are the warlbro 255 fuel pumps almost a straight replacement.

[tridentt150v]

^^^^yes, but go up a size or two for 'future needs' IMO.

[JDM33R]

Could be dry joints In the AFM.
Had a similar issue.

[hy_rpm]

If its a r33 s2 with pink label afm
Its a common fault the afm get dry solder joints easy fix
Just remelt and add solder on the joints once you remove the cover then reseal it

The way i knew i had this fault was there was a apexi safc installed already when i bought the car and the afm signal would cut out 0v when it played up
Easily tested if you have a consult cable or know someone with a scan tool for nissans and go for a test drive to see if the air flow metre signal cuts out

[Boosted Ejt]

Cool thanks for the advice will double check the afm and see if thats the problem, maybe worth re soldering it hopefully does the job