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View Full Version : Help Pls Car starts but dies right after

second_chanceS14
03-22-2009, 07:28 PM
My car was running fine two days ago and yesterday i didn't drive it or start it at all, today when i started it. It started but died right after. I checked the fuses, oils and everything and the problem still persists. Any idea of what could be wrong will be appreciated.

Thanks!
godsmack
03-23-2009, 10:24 AM
Need more info. Car, motor, upgrades, recent upgrades.
second_chanceS14
03-23-2009, 11:54 AM
it's a 1995 Nissan 240sx
Automatic
Stock KA except for the exhaust.
GSMotorsports
03-24-2009, 11:24 PM
Is the car out of fuel? If the car has fuel, can you hear the fuel pump prime when you turn the ignition on?
opponheimer
03-25-2009, 07:43 AM
If you get spark, it could only be four things
1. Fuel pump relay de-energizing
2. Bad ECU
3. Flooding out cylinders
4. Bad fuel pump


I had the same thing happen to me and it was a burnt ecu. Yours is probably fine.
second_chanceS14
03-26-2009, 01:39 AM
thx guys, it turns out i replaced everyhing, and one of the three wires to the maf plug was pulled and now i need the maf pig tail for it. btw i bought the fuse relay for the fuel pump, anyone know where it's located???
SoguRacing
03-26-2009, 01:40 AM
maybe your battery is dead
Howlermonkey
03-26-2009, 11:20 PM
Remember that nissan ecus don't burn themselves out.

Some sort of event has to cause it and the burnt ecu is a symptom.

I see about 50 nissan ecus a month and only 10 percent of them sent in for testing/rebuliding are bad.

Most of the time, it's a bad sensor or lifted ground on the car.
supreme_1
03-27-2009, 02:26 AM
i was gonna say it was your maf, but you already figured thqat out
second_chanceS14
03-29-2009, 03:04 PM
so i replaced the whole harness and the car still does the same thing, me and a friend checked the injectors, cleaned the throttlebody, and checked the voltage and checked for spark and everything seems to be working, at this point i think it might b the ecu. what u guys think?
godsmack
03-30-2009, 09:51 AM
Check 02 sensor. After you start it will it die if you give it gas or will it just die no matter what you do? If it still starts i don't think it's ur ecu.
godsmack
03-30-2009, 09:53 AM
maybe your battery is dead

Are u serious dude? :down:
second_chanceS14
04-05-2009, 08:11 PM
hey guys, it was the ECU and the EGR valve that were the problem