My engine keeps dying

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Z3gundam
Posts: 28
Joined: Tue Nov 07, 2006 3:54 am
Car: 1993 nissan 240sx

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If the car is cold, I can start up and drive just fine. But if the motor is warm and I go to start it up, it wont rev up and idle. Instead it chokes out and after a minute or so, it dies out. Its like the spark plugs arent firing. I know its not the spark plugs, spark wires, rotor cap, rotor button, or fuel filter. I changed those about a year ago. Anybody with any ideas?


240tripper
Posts: 5
Joined: Wed Feb 06, 2008 12:51 pm
Car: '91 240sx

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i dont know much about your car--certainly no expert, but,

sounds electrical for sure (coil/ign module?) or a sensor...

i say this only with the experience that on the thousands of small engines (generators and the like) that i've worked on...some units the ign will often work fine when cold, then break down and fail with heat. Its like they would always run perfectly fine for 10-15 mins, then mysteriously start to sputter, then turn off. right after, they wouldnt restart. but let the thing sit for 45mins and cool down, theyll restart and run, until the engine gets hot again, causing ign to fail....so replacing the coil/solid state module would fix it.

so--at least-- the theory could apply to your situation....

User avatar
RCG_Savage
Posts: 553
Joined: Sun Aug 06, 2006 6:48 am
Car: '92 240sx fastback

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Download the factory FSM for your car. http://www.nicoclub.com/FSM/240sx/


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