http://www.ebay.com/itm/261033443292?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
I am trying to trouble shoot an engine stumble at full throttle 4200ish rpms and a mechanic I know said I should try a different MAF to see if thats the issue. I have cleaned the MAF and tried several "garage" tests to see if it causes a stumble but I can not get it to do anything.

 

A bad maf will cause your car to turn off as well. But dont try any aftermarket mafs as they will never work and will cause your car to run rich or lean and throw bunch of other codes. Only buy an oem nissan maf.

 

I guess but my ebay one has been on my car for 2 years now and no problems

 

Its probably the god-dam coils, Its always the God-dam coils.

 

Ive been noticing alot of coils going out probably all of ours were originals which mine were.... a damaged MAF will make the car not rev up past 2k-2.5k RPM, IF your able to get to 4200 rpm.. then its something else not the MAF

Check the coils.. especially when you say stumble at full throttle.. I had that issue a month ago and it was the coils.. put 6 brand Hitachi new ones... runs new again. Thought it was a whole bunch of other things.. also the car wasn't throwing any codes. So Just a heads up.. you can think its so many other things..but its the coils..check them.

 

I got one of those $24 MAF sensors, and it didn't even work for 24 hours. Luckily when it decided to quit I was in front of my house. I would pass on it. If I were you, I wouldn't waste your time or money.

 

No. They are crap.

ONLY get OEM, Bosch, or Beck/Arnley

The Bosch part number is 63128
Beck/Arnley part number is 158-0824

 

For the sake of troubleshooting I would just grab one at a junkyard. Theyre pretty cheap over there and you'll have a part that unquestionably should work