RPM's drop out, car stalls while moving
 

This has been happening for about two days now, but the occurences are random. Today I was driving to a Bowling Alley with some friends and as I pulled up to a green light someone was turning so I slowed down and was anticipating a yellow-red by the time I got up to it. So I pulled out of 5th gear, and started breaking so I could come to a stop. But instead it stayed green and I just rolled through but when I put it back into gear, I noticed I wasn't getting any power and the car had stalled -_-

It was weird but ok, I turn it back on while going abuot 35mph and keep going, when I get to a turn, about a 90-100 degree turn, the car stalls again while someone was on the other side coming around the bend. My power steering went off and scared the $hit out of me, I end up sliding through part of the turn because I slammed the brakes and took both hands to crank the wheel over.

Once we got to the Alley, it stalled again as I went to park, it seems everytime I take it out of gear it would stall. I parked, turn it on again it revved up to about 1,500 then just came down to 600 and almost immediately dropped to 0 and stalled.

I turned it on again after that stall and it stopped at 600rpm's and stayed there for a steady while. The whole ride home it felt fine except for a few hiccups, as if i was bucking except I was cruising in gear.

Any ideas what it could be? I thought it could be a dirty TB? or bad A/F ratio's? Fuel Injectors? Spark Plugs?

Thanks for all the help

Mine did that... I replaced the Engine Coolant Temp Sensor.. sensor thinks your car is running to hot or cold so the ecu tries to shut engine down...

I'd check fuel filter, and IACV. But i think it's the IACV. It's happens when you brake or slow down most of the time right? So it's one of those 2.

It didn't matter so much when I slow down I think, it just happens I take it out of gear when I slow down to stop. But I feel it would do it even if i wasn't slowing down aside from mere friction slowing me down.

Any tests I can do that will help me narrow down what it could be? That turn scared me, if I wasn't paying attention and changing a radio station I could have easily gone head first into that truck and died.

your MAF sensor might be getting erratic reading due to faulty ground circuit

check my thread on regrouding MAF sensor


http://forums.maxima.org/showthread.php?t=502009

Engine Coolant Temperature Sensor. Same exact thing happened to me. Eventually you get a CEL/SES.

Where is the ECTS located at? Mine stumbles at a stop light but doesnt cut off. It just drops to about 500 rpm. I might as well give it a try.

^ You Have To Clean Your Iacv!

i had the same thing happen on mine and previously on my 91 240sx, the 240 never got right and i haven't started on the max yet.

the 240 would do it often, i checked all of the things that you guys mentioned above, iacv, temp sens, maf, i even took off the intake plenum and cleaned the hell out of it and the egr, got a little better, but never quite fixed it, that is why i haven't started on the max yet, gonna do more research
mine is throwing a code for the knock sensor and the rear heated 02, do you guys think that they could be affecting this, also i think that i remember the knock and the temp being related by some kind of overcompensation for one messing up the other??