rb20det idle prob

[sen-pai]

well i have a 93 240sx with an rb20det in it and it has been running fine until now. the problem i'm having is when i start it up to warm it up it is fine but then today after running for about 5 minutes it just started idling from 700 - 1500 and back down and up... then finally it just died. waited like a minute then started back up ran fine... got home no problem.. then when i got home i restarted it let it warm up again after letting it sit for about 5 hours... same thing occured revved up then down then died. the only thing i have done diff in last couple days was flush the radiator... and i tried to get as much air out as possible but i think there might still be some in there... would that cause this problem? thanks

[NISTECH]

sounds like an IACV problem. If you have time when this occurs ,quickly unplug the tps and see if it stabilizes.

[sen-pai]

and if it does then what... can i clean the iac?

[NISTECH]

yep, As its probably hard to source one for that engine I'd imagine.

[sen-pai]

does any1 know where its located and what should i clean it with

[NISTECH]

This I cant answer as I am not familier with the RB20.

[sen-pai]

well i was driving on the freeway and when i got off it did it again. but like i said i flushed my radiator out, and after i started the car back up and reached my destination i ate and went out to my car to check my engine out and look to see that the reservoir for the coolant is almost empty so i think i just have mass air bubbles in my system which is cause this stutter in my engine... cause it only happens when the car is warmed up and only does is for like 10 secoonds