10-09-2010, 02:55 PM
After replacing a blown turbo intake gasket on my Nissan SR20VE (with turbo), my engine started Idling high (approximately 2000 RPM, and hunting/cycling between 1500-2000 rpms after warm-up. My turbo intake gasket was blown so I went through the laborious process of taking out the whole turbo manifold assembly and replacing all gaskets. I also changed the exhaust gaskets on the manifold and on the down pipe. I checked (disconnected) the MAF and the O2 sensor connections one at a time and no changes. I disconnected the battery to reset the ECU between each of the above tests. This problem started only after replacing the turbo gaskets. What's wrong?