Hardcase

i unplugged the O2 sensor and absolutely nothing happened

I had a shop that specializes in imports and high end cars check the timing about 3 weeks ago. everything was all good. plus i had the timing belt and water pump replaced 3 years ago. Thanks for the help.

cheers mate. gonna be at least a week before it arrives.

I just purchased data scan with cable a few hours ago. Thanks for the help.

I forgot to mention that the O2 sensor is also brand new but i will try disconnecting it in the morning. Thanks for the help so far mate.

I just finished installing a brand new one of those today. It didnt help the problem. is blowing into it just making sure it starts to close and works?

You mean disconnect a vacuum line to the IACV and then blow into it?

No its not blocked off in any way

Car is hard to start when cold. just have to give it some gas. changed cold start valve did not help issue. Car coughs at idle about every 1-3 seconds. cleaned and inspected IACV all clean and works. still not helping. Car stalls with clutch pushed in when coming to a stop when cold. only happens 50% of the time. Checked TPS all good and reset. Car is stock. Brand new OEM coil packs, new spark plugs, new OEM fuel pump and fuel filter. Confirmed no vacuum leaks. MAF is clean. Idle does not hunt. wiggling the plug to MAF when car is on doesnt affect idle. Throttle body is clean and cable tightened correctly. I checked the forums here and what i said above is what people say will fix the issue. The coughing idle is what really bugs me. everything else i can live with. Car is perfectly fine in every other regard no issues anywhere else. No i cant just borrow parts from another skyline.