car dies if warm when you start it???

[xS-13x]

hey i have a 1995 240sx and the check engine light is on. when its cold it will start and drive fine. but when its warm it will go to a really low rpm and it will cut off. it sounds like it has an exaust leak and someone told me it may need a new mas airflow sensor could this be causing it to do this?

[Frankenfourty]

http://www.nicoclub.com/articles.php?id=160219

Check this^

And yes a MAF sensor can give you the low rpm idle like you described.

[xS-13x]

well i hear this ticking noise coming from my exaust. isnt that an exaust leak? and how hard is it to replace a fuel pump?

[Frankenfourty]

If the ticking is coming from the exhaust manifold then check your manifold bolts. I had a loud ticking coming from my manifold at it turned out that 50% of the bolts were missing.

As far as the fuel pump is concerned, the hardest part for me is dealing with corroded/rusty parts that wont budge.

[xS-13x]

yeah thanks. is the fuel pump located in the tank i know it is on a honda but im not sure about nissans?

[Frankenfourty]

Yep, pump is in the tank.

[xS-13x]

yeah i got a coupe. so i could just take all the crap out the trunk and ill be able to access it?

[xS-13x]

my bad its not hard to start when its warm. it wont stay running when it starts. like it will start but if i dont put any gas on then it will die. but only when its warm like halfway on the temperature gauge.

[Frankenfourty]

Hmm, im at a loss right now man. I'll let you know if I think of something.

[Armstec_S13]

Ok something similar happened to me on my SOHC try this, start the car, warm it up make sure its doing the problem, on the intake manifold there should be a temp sensor (coolant temp I think it is) anyways disconnect it and try to start the car, if it fires up its the sensor, think its like $26 at autozone, try it and see what happens and let me know, hope this helps.