need quick response please help..NO START

[mehmet123]

Car was cranking but not starting, checked fuse was OK. Checked fuel pump and we couldnt hear it turning on. Changed the fuel pump car still does not start. You can hear the fuel pump turn on this time..HELP

[loystock]

Which car and model year?

Did you check/replace the fuel filter? How about the fuel pressure - 34 PSI with engine running (vacuum on) and 43 PSI with ignition ON but engine OFF (or engine running w/ vacuum disconnected)?

Ensure your battery connections are clean and tight. The battery voltage must be >12.5 VDC. A weak battery can crank the engine but the speed may not be enough for combustion.

[mehmet123]

battery is brand new. I will change the fuel filter. this 97 3.0 maxima has almost 200k miles on it and I doubt the filters been changed. Thanks!

[mehmet123]

changed the fuel filter..still same exact symptom..doesnt make any sense

[tigersharkdude]

IDK if I am close to the problem, but how bout the fuel pressure regulator

[devean]

I had an issue with this on my car. It turned out to be my 2 crank sensors and my cam senor. The TSB for this issue is to replace all 3 senors. My car would crank but wouldn't turn over, it wanted to, but just wouldn't.