strange problem, 92 240.

[torque87]

Ok, I've got a 92 Fastback with a KA24DE, here is what's happening. The car drives great, but whenever the engine drops to idle the rpms will intermittantly bottom out to 500 or less, (and rarely even cause the motor to die.) but when I come to a stop it levels out between 700 and 1000. Any ideas would be appreciated, thanks.

[Still NA]

I'm having the same problem, and no one has been able to fix it.

[low91240sx]

well I've seen alot of people have this problem with their 240 including my brother.uncle and I as well as some others on here and what he has come down to is either A. vaccum line or B an injector going bad and soon after going out after replacing the injector all is well in my family's case all 3 of us had an injector going out

[rogoman]

Several possibilities:

- Bad O2 sensor.- Sticking EGR valve.- Dirty IAA unit.