Car likes to die after driving for 30min or more (help)

[Dustin240]

My car idle's fine when cold, then after 30min or so the idle jumps up and down some times all the way down.

new coil & capnew temp sensor102miles on moteradjusted TPSnew oxygen sensorturned up, idle to 1000 (no help)vac is to high -25 at idle 1000rpmidles a bit rich when warm HEPL

[Florida240sx]

Car sputter?Backfire? Any problems while under load??

[Dustin240]

Car runs great under load and some backfiring when up shifting to 2nd.

[egan]

im no pro, but if you get 30 mins out of your car before she dies, you might want to get ur alternator tested. maybe its runing on battery untill she just straight dies.

if youve never had to charge the battery, than you might want to look into wires/components that could be affected by heat

[Dustin240]

New altenator with good diodes.

[Dustin240]

Also- if I let the RPMS come down slowly it's fine and will not die.

And the idle adjusting screw is near level with the locking nut.

[shiftdowns13]

does your bov vent to open atmosphere?

[Dustin240]

My bov vents open atmosphere but I think not for long.I tryed removing the vac line but that did'nt work. And it only die's if it had a long time to warm up.

It realy sucks that BOV's open up due to high vac (Like going down hills off the gas) even with little or no boost.

I'm runing a e-manage blue so I might just try the stall settings.

[rotorimp]

Where is your timing at?

[GEO]

Guys, it has nothing to do with his BOV, timing, or any of that stuff. Someone alreaqdy hit the nail on the head with the alternator being bad and draining the battery.

[Dustin240]

My timing is at 14 with 7.5psi and my battery is at 12.6v and 14.4 charging.

Should the car idle in open or closed loop after it's warm?

7.5 psi makes a big difference, car's that I had a hard time beating before is easy under 4000rpms now. turbo's

Modified by Dustin240 at 10:33 AM 7/28/2006
Modified by Dustin240 at 10:37 AM 7/28/2006

[Florida240sx]

So what happens your car jsut had irradicate idle and sometimes stall? But fires right back up????If so my car does that too. Shouldn't anymore being I got my ecu tuned.Just when coming back to idle your ECU trys to give the right fuel and somtimes gives too much an dthen takes it away and car dies.... It's de cel settings if you got a safc.

[Dustin240]

Went to a blow-threw setup & problem fixed. runs like