Eratic idle

[CMF_jesh]

Hi,
I have a Nissan Micra Engine CG10. The engine speed goes down occassionaly and sometimes stop. I think the problem is with the throttle. Is it recommended to dismantle and clean the throttle body or I have to replace it.

 

[CMF_frank2]

have you tried setting the idle like explained in the pdf manual jesh ?

 

[CMF_jesh]

Yeah I tried setting the idle but no improvement. Even no DTC`s stored. I checked my spark plug condition and it looks black. The mixture are too riche.
What you think I take out the throttle body out and clean with throttle body spray cleaner.?