This just happen recently. Every time I start up my car now it seems to struggle before actually coming on. I posted a video to get a better idea.

Some FYI as a just in case
- I just replaced my battery recently - Volt Meter reads fine
- I replaced my clutch and flywheel a few weeks ago

http://www.youtube.com/watch?v=8iH9sLG_t7I

Any idea?

~Robert

 

1. starter going bad??? 2. fuel pump going bad?? that just my 2 guesses what it could be....

 

It's not the starter, or the motor wouldn't turn at all. Couldn't be a fuel pump, cause the motor wouldn't run at all. Does this only happen when the car is cold, or even after it's warm?

 

how many miles?

car driven really hard?

any smoke or smell coming out of the exhaust?

check engine light on or any codes?


................

could be a list of things from mechanical (head gasket) to electical (cam or crank sensor)


did it start doing this right after the flywheel install ?

 

Sounds like the Crank Angle sensor may have been left unplugged after the clutch and flywheel install.

If it's not that, is the pin coming off the crank lined up with the hole in the flywheel?

 

It wouldn't run at all without the crank pos sensor.

 

Yes it would. I believe the way it works is if it doesn't see a signal from the Crank Pos. Sensor after a few seconds, it switches over to the cam sensors as a reference. A friends car was having a hard start issue almost identical to this one after we installed his greddy tt kit. When I went to check, sure enough the Crank Pos. Sensor was unplugged.

 

Just checked the FSM and it appears you are correct.

 

This started I would 1.5 - 2 weeks after the clutch and flywheel installation. Probably close to 200 miles I have put on it. Trying to drive it a bit more to break it in.

As for the start up, warm or cold it still happens. Happens every time I tried to start her up.

I have about 67K miles on it. But probably 5K miles on the motor. It was replaced by Nissan almost two years ago.

No black smoke at all. No check engine light too. Only things that pop up is the Service Engine light.

 

turn the key to the on position (the position its in when your driving it) to see if you can hear your fuel pump prime.

you should be able to hear it turn and push fuel around instantly.
you might not be able to hear it if you have a full tank though but i have no idea because i never go above 1/3 of a full tank (stay light for race's and off ramps

 

I am trying to carefully hear it but due to my mad loud jdm exhaust it makes it difficult . I am going to try again.

 

Don't start the car, just turn the key to the ON position without actually cranking it. You should hear the pump kick on behind you.

 

You should have the dealership run a charging systems test.

 

What's the code?

 

yea .. pretty sure "service engine" is same as a "check engine" light

get the code pulled .. most auto parts stores will do it for free with a scanner

dont know if theres a way to "flash" it out like other cars

 

okay I have done that. I do hear a noise from the back. Is that a good sign haha

yeah I am going to try to stop by Pepboys tomorrow and see if they can scan it for me for free. sigh I hate when there is something wrong and I don't know what it is.

or if anybody can think of anything else, let me know.

~Robert

 

the noise is most likely good mine does makes it and the car cranks up first time every time.

 

do you have a utec???? did this to my Z....

 

your crank sensor is most likely on its way out or you may have put the flywheel on wrong. Try getting your hands on a new or good used crank sensor and try that.

 

Wondering if you figured out your problem yet??? nissan does have a couple problems slow start up like what your experiencing. do a powertrain current data test and see what your coolant temp is reading and compare with a thermometer. If there way off, your coolant temp sensor is bad which is causing it to over fuel.