Well, it seems you've covered several things I mentioned....as for the MAF sensor, you can use regular electrical circuit spray cleaner (Radio Shack, etc.) or pick up some electrical spray cleaner at your local auto parts store (lots of times, it's actually listed as MAF sensor spray cleaner). Hit it with that for a few seconds - it evaporates quickly. Just be careful to put it back in the same direction you took it out & be careful with the sensor itself (the part inside your intake tube). That's sounds like enough injector cleaner - if it hasn't made a difference after several bottles, that's not it (unless there's a badly clogged or fouled or bad injector). Does it run pretty solid as you accelerate? the problem just appears at idle? Best of luck!

Well, it seems you've covered several things I mentioned....as for the MAF sensor, you can use regular electrical circuit spray cleaner (Radio Shack, etc.) or pick up some electrical spray cleaner at your local auto parts store (lots of times, it's actually listed as MAF sensor spray cleaner). Hit it with that for a few seconds - it evaporates quickly. Just be careful to put it back in the same direction you took it out & be careful with the sensor itself (the part inside your intake tube). That's sounds like enough injector cleaner - if it hasn't made a difference after several bottles, that's not it (unless there's a badly clogged or fouled or bad injector). Does it run pretty solid as you accelerate? the problem just appears at idle? Best of luck!

   She runs like a BEAST, as long as I'm on the gas..... At idle, its bad, unless I put it in park or neutral, so I was thinkin it has to be a fuel problem, thats why I changed the fuel filter and sock, and tried so much injector cleaner. Also, for a little of the cars history: My cousin bought it new in 95, did all schelduled  maint. and never had any problems at all. nissan says to only use premium gas, but 87 was what it used for it's entire life... now that the car has 118,xxx do you think the gas might be a problem? I guess I'll try a higher grade and see if that helps... I will also buy the circuit cleaner and try that out.