im having this problem with my max, it just started happening one day and has gotten worse... itll be driving fine and then it will feel really choppy like it's missing and you can hear it in the exhaust aswell then it will just go back to normal and then back to choppy nonstop going back and forth it kinda seems like its only when you give it a certain amount of throttle but im not sure. it's kinda hard to explain so if anyone understands what i mean, do you have any idea what the problem might be?

 

Possible fuel pump problem. I had a stalling problem and a walbro pump fixed it

 

Kinda million reasons. Time for tuneup...

Try reading: http://www.cardomain.com/memberpage/748507/1

 

i have a walbro pump


it feels like it loses 50% of its power when it does it too it doesnt fade in or out, it feels like it's something electrical or a bad sensor or something, cut it cuts in instantly and stops instantly.

 

Your computer is detecting something wrong with the engine, and switching to <trouble> mode. I don't know what that mode is called, but it is serious emough that you should check it out. My Maxima acted similarly when the injector valves needed replacing. The engine code should tell you something.

 

you could try pulling codes first but if nothing comes up when was the last time you did a tuneup ie plugs wires cap rotor fuel filter etc..

if its been awhile or you dont know when they were done do that and then look into it further

after you do that if it still happens id check MAF or coil

 

He already answered to that question: "i have a walbro pump pump " lol

= only wimps need tuneup, just drive an wonder...

 

I got the same problemm, it's the injector plugs try jiggling them see if it makes any diff, my mech said mine are corroded and brittle i seem to have got them in a such a position were it doen't happen anymore.. got a set of new injector wires just havn't got off my *** and replaced them.

 

Dont do that if the reason is only corrosion. Why? Read the given link.

Question yall ppl: Why write and ask, but not read answers???

 

I didn't ask a question, just trying to help.. don't do what? jiggle them? y not it works for now.

 

Hmm. Me the stupido, youre right. It helps, but possibly returns. Try contact grease on pins.

Maybe connectors time is out; is there still anythin metallic left to solder wires directly? ...drill first all connector material off from injector and cut harness connector. Has to be shielded well against short circuit.

 

Mine did this just before the MAF failed on me. But could be a million things.