my 1992 240sx stalls .......

ONLY for ADVANCED technical discussion about the 240sx!
tony/ka24de
Posts: 257
Joined: Tue Jan 07, 2003 1:10 pm

Post

my 1992 240sx stalls when the car is hot. Cold starts are fine. But after driving it and turn it off for 10 min, I have trouble starting it and when it starts it bogs for a bit. Does anyone know what this might be.


ziggy682
Posts: 260
Joined: Sat Nov 23, 2002 10:34 pm
Car: 1991 240SX Turbo

Post

Leaky injector?

tony/ka24de
Posts: 257
Joined: Tue Jan 07, 2003 1:10 pm

Post

only when the car is hot, can't be

ziggy682
Posts: 260
Joined: Sat Nov 23, 2002 10:34 pm
Car: 1991 240SX Turbo

Post

tony/ka24de wrote:only when the car is hot, can't be


Actually 2nd generation RX-7's are notorious for exactly this problem. Cold starts are just fine, but there is a problem with the ECU that leaves an injector open occasionally when you kill the car. All the pressure in the fuel rail leaks out through the open injector, filling the combustion chamber with gas. If you try to start the car, it won't start because it's flooded, and rotaries don't like to unflood themselves. Once the car has sat for several hours, the gas will evaporate, and the car will start like nothing's wrong.

So, if you have a leaking injector or o-ring, when you kill the car, it will flood it as it releases pressure from the fuel rail. This could be your problem, or it could be a hundred other things. I was just throwing an idea out there.

User avatar
ricebike
Posts: 3381
Joined: Sat Feb 15, 2003 7:03 pm
Car: 1989 240sx se 5spd (donated to my brother in law)
2002 Quest
2005 Altima
Location: CNJ

Post

yes, one of many that can go wrong w/ this condition...too many to list soo:

just d/l the FSM that's floating around this site & start reading the diagnostic process...

tony/ka24de
Posts: 257
Joined: Tue Jan 07, 2003 1:10 pm

Post

thanks guys

SunshineAcid
Posts: 149
Joined: Fri Nov 28, 2003 9:22 am
Car: 89 240sx Ka24de swap
Contact:

Post

sometimes the RX& problem is grounding (i know, i have one)make sure your ecu is grounded properly


Return to “240SX Technical Forum”