Engine Performance problem
1996 Nissan Altima 4 cyl Two Wheel Drive Automatic 240000 miles
----------------------------------------------------------------
While turning the car over it sometime attemps to start.
The mass control sensor has been change,spark plugs, wires, fuel filter, rotor and filter all have been changed.
What could the problem be.

Thanks

Check for spark
check fuel pressure
what is missing
start with fuses and relays
crank sensor fuel pump
and the list goes on and on


check for codes
check spark
check fuel pressure
check timing
let us know what is missing

get yourself some starting fluid and open the airbox, and spay a few sprays into tube above filter, close up and try to start, if it starts and dies, the you have a fuel delivery issue, read the rest of the post and it could save you some cash, email me if any questions...
Hi, I have had a similar issue, took the car to a shop they replaced a bunch of parts that they said were definitely bad, but thats another story, they gave me a BS story each time they replaced something, and i am talking a reputible shop in town here, not some joe shmo, found the issue myself after doing some thinking, if you cannot start car, have someone else turn key for you and you listen from backseat with the larger half of the seat folded forward, the fuel pump is right below where the velcro connects the trunk carpet right below there, but to get to it back seat comes out, along with the round pressed metal surround under the plastic pieces there along with them... anyways listen for the fuel pump as the other person turns key, you cant do this test yourself. if you hear nothing, its most likely it, try a few times, then get out and rock the car back and forth a couple times from side to side, at this point the wire which is half broken inside may align itself, try listening again, if you are able to start car, then get the sending unit or fuel pump harness kit, forget which it was, but the wire that is bad is the one that connects to top of the fuel tank seal and the other side to the fuel pump. I hope this saves a lot of headaches for everyone, and I can't believe that nissan doesnt even have this documented... definite design flw, basically what happens is while driving the sending unit along with fuel pump are suspended by 2 fuel lines and this wire harness, and it, just like any piece of metal eventually partially breaks when folded back and forth a thousand times...i dont believe you can buy the cable itself, it comes as a part of the kit or sending unit, one connector is flat, other square with rounded corners, i believe around 80$ bucks at nissan dealer only.... good luck, let me know how it works out...
-Miro