240sx wont start

[1lazy40]

Hello nico my name is torey i have had my 91 240sx super hicas for about a year now, with onl1 1 prob it would smoke a little from time to time and that it would run funny after inwould drive it fast. It would idle funny and sound like a wrx, i think it was an injector prob, but other then that it would drive fine , but the other night after driving it for about 20 min , and then turning it off , it wouldent trun back on , it starts and runs fror about 2 sec then shuts off, i looked over my fuses and i noticed my fuel pump fuse was blown so i replaced it , but still had the same prob , i then removed the fuel pume it self it looked ok, i wired it to the battery to it seem to be working fine , i have no idea why it wont run , anyone else had this prob or know what it could be ?

[moso]

a bad fuel pump may pump fuel but it wont hold high pressure.

[rocksteady_racer]

Is it running rich? Could be the coolant temp sensor, mine had corrosion in the connector which I just fixed with some contact cleaner and I think it should be running great (still reassembling the rest of the engine). It clogged all my spark plugs too cause it was running so rich which prevented it from starting before I pulled the engine apart. Or maybe the crankshaft angle sensor went bad, my maxima did that once, stalled out while driving and wouldn't start 90% of the time, then it run for a while and go through the same shennanigans. Or lastly the camshaft angle sensor. I'd check all those, one of them is probably the problem. The MAF connector maybe too. Make sure you can hear the injectors clicking first before you go through all of the trouble of tracing down the sensor giving you grief