At idle the rpms drop and when it seems like it's going to die but it jumps back up. I have installed motordyne plenum spacer and injen cold air intake... I tryed to do the relearns but it did not seem to work.. Any help would be great.. I have also checked over the work an can't find any problems..

 

1) Air leak

2) MAF sensor installed incorrectly (backwards).

 

I will try turning maf around in the morning.. It seemed to fit the was I installed it due to the tabs. Thanks

 

I checked the maf. It was in the right way. Going to check for vac leaks in the morning.. Hope I find something..

 

unsteady idle is legendary in the Z.

 

I have a similar issue but it only drops down occasionally while sitting at a light, but only by 100rpm or so.

What scares me is that sometime on the freeway when I'm taking an exit i'll drop into neutral and the engine will drop revs and not hold. IE engine shuts off because it couldnt hold idle, it basically stalls while I'm trying to brake.

 

I have not had it stall on me yet.. I checked for vac leaks could not find any.. I am just wondering if it's something I gotta live with or can I do something about it..

 

im having the same issue I’m starting to wonder if it’s the pcv valve, I have aftermarket valve covers and I’m currently using the pcv valve it came with but I don’t think it’s the best quality, I’m going to the replace the valve and see if that helps, my guess is too much oil is getting into the intake cuz I’ve been burning more oil than usual lately