04 NISSAN SENTRA 1.8L HARD START
I HAVE A POBLEM GETTING IT TO START, MUST PUMP THE GAS A FEW TIMES AND KEEP IT REVING FOR A FEW MINUTES. IT DOES IT AT ALL TIMES HOT OR COLD. REPLACED FUEL PUMP ASSEMBLY,DIDNT HELP. IT WILL IDLE AFTERWARDS,BUT LOW. SWAPPED OUT RELAY DIDNT HELP EITHER.WHATS GOING ON HERE?
could be a throttle sensor, but I would get it looked at. Your car needs to be scanned to see if there is any fault codes
same here my 2004 sentra does the same it starts - then it starts then shakes and die immediately or sometimes it just cranks for a long time then finally starts ..it wierd...most of the time its fine.
Check the IACV, your fuel filter, and especially all your vacuum lines. It really sounds like you have unmetered air coming in somewhere. You can also try re-grounding the MAF (Mass Airflow Sensor) and/or cleaning the MAF - just remember not to use anything other than MAF cleaner to do so. If none of that does the trick, then check your TPS (Throttle Position Sensor).
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