idling issues

[base308]

not sure how to describe it but when im sitting at the lights for a little bit the cars idle will drop and the whole car starts shaking like an engine mount is snapped its only just started hapening and doesnt happen all the time seems to happen more when its hot any ideas on where to start cause i havnt got a clue i have recently just replaced all the sensors so it cant be them

[Nackerz]

what engine is it? might help. if its rb30 it sounds like cas is starting to die

[base308]

yeah its got rb30 in it cheers will pull it out and replace it see if it helps

[Nackerz]

may also be a fuel blockage too. check/change your fuel filters under the car near the diff they are. A big one and small one. might help. I would prob do them first

[detox_nath83]

Mine just did this as well.. i went over all electrical plugs with some INOX. was also running rich as...Smelt really Smelly/Fuely with Black smoke
Checked the AFM setting and was way out at 4.14v... Set it to 3.6V (Factory Lean)across pins 1 and 3 with the screw on the AFM itself with Ignition on and now is sweet as, idle is smoothed out and not doing it anymore at about 750 Rpm. Both LED's on the ECU flashing together same time at 2000 RPM
Plugs and leads is a good start as well and as nackerz stated CAS could be starting to Fail
Goodluck man