Hey everyone.
Recently I rebuilt my JDM GSR. The motor consist of US ITR pistons .40 over, stock crank, stock rods, stock sleeves, OEM head gasket stamped 83mm, fresh GSR head with stock valve train (valve job and resurfaced), CTR cams, and blox intake manifold. I am running a virgin JDM ITR obd2a ecu. When I first turn the engine on, it idles great and everything. My problem is after I come to a full stop, my idle would dip and sometimes stall. Is that common for fresh rebuilt engines during break-in? I've searched around but haven't has any luck finding the answer. Any input would be greatly appreciated.

 

no one has any input?

 

Did you try to adjust your mechanical idle screw? If not, try doing that and see if the car idles better when warm. Are you planing on tuning the set-up at all?

 

Sighh.... I feel like a noob. I just finish adjusting my valves to spec. My idle problem went away.