LtSlayer

I'll start from the beginning

s13 sr20det black top E5 ECU code

Ok so my motor had a vacuum leak i couldn't track down for the life of me. The logical answer to me was to replace every line and gasket which did work but now i have new problems, a much worse one. I didn't delete anything and don't leak any coolant as well.

At start up I'm at about 1250 RPM which is normal for my car. Then it jumps to 1500 and after it's warmed up, it rests around 1750. The car idles extremely high but once it's moving it drives very well and maintains healthy boost levels as well as AFR throughout the powerband.

I know everyone reading this is thinking the IACV but that was never removed from the manifold and I retained it's lines.

The next likely culprit is a vacuum leak but my car idles rich and even has slight backfires so vacuum leak is not likely especially after all the lines have just been replaced.

Another likely culprit was the coolant temperature sensor but switching this only made this whole probably that much more confusing, the car started and rose to a similar idle but was now running very lean.

Can anyone propose any other ideas?

also does anyone know the torque specs for the intake manifold runners? i got the intake manifold torqued to 13 but couldn't find any information on the collectors that run from the log to the block, thank you