(I am running a b18c5 if this helps) Sometimes when I am slowing down and come to a stop my idle will drop all the way and bounce back up or sometimes die. Ive already changed my iacv, plugs and wires, rotor, coil, fuel filter, fuel pump and some other stuff. Im completely clueless and this is a pretty big hazard like if Im parking and it cuts off, I cant stop and might slam into a car. Could this be a vaccum leak or even the brake booster? Anyone have any ideas what this could be? Thanks in advance

 

also, could this be a cam timing issue? If it wasnt timed right????

 

 

this might have nothing to do with it but my friends throttle body would close too tight and cause the car to stall occaionally when he would stop
Try adjusting the TB to see if this helps at all and see how tightly it closes
cause if it closes to tight the engine cant breathe at all and it will cause it to stall

 

Wait until car reaches normal operating temperature, disconnect iacv, raise the idle .
You will get a cel, pull hazard fuse and reinstall.
I bet that will fix it.

 

Ill try that.

 

What was the solution, my B18C5 is exhibiting the exact same symptoms and I have changed everything you did as well. Do you need to disconnect the IACV to raise the idle or just loosen the screw?

Thanks,

AW