Newbie, help with 240sx stalling

[bobbymitra]

Just wondering if anyone in this group could help me with this: I have a 1990 240sx that is stalling (idles at 800rmps) and at lights if I sit for more than 1:30sec on average the idle drops down to 300 and then stalls out the engine. It always starts up again. Could this be a sensor in the engine, when it gets too warm. Cause I didn't have this problem in the Winter. I had it tuned up, fuel filter replaced and throttle body cleaned (which helped this for a few weeks only). Any suggestions would help. I may take it in to Nissan dealership this weekend. Love the car though. If you can get a hold of a 240sx do so; these cars rock. Thanks in advanced. Bobby

[wa-chiss]

check all your vacuum lines. I had a car that would do the same thing and come to find out I had a vac line loose. And yes the 240's are sweet.

[Kittychubbs]

Yes hes right vaccum lines, and adjust Idle too.good luck yes 240's are badass!!

[vancouverbc]

Very important that you clean your iacv-aac if you have not done so. This is the main cause of idling problems for 240sx/s.

This thread covers this topic with pics.

zerothread?id=124542

Also, disconnect your AIV. air injection valve. The pic shows you how. Again, very important.