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View Full Version : SR20DET RPM Drop after high rpm's

lightsource
09-09-2008, 10:23 AM
After revving to anything around or above 3000rpm I get this:

YouTube - SR20DET RPM Drop after high rpm's (http://www.youtube.com/watch?v=c3FJe-0Swa8)
YouTube - SR20DET RPM Drop after high rpm's [2] (http://www.youtube.com/watch?v=6wdjglQm4nw)

Is there a definite answer for what the problem is or do I have to do a few things to troubleshoot this.

I'll be getting a Blitz Blow-off valve very soon and I hear that this might be one of the culprits. What do you all think?
renegade_ewok
09-09-2008, 10:54 AM
Is your BOV vented?
lightsource
09-09-2008, 05:12 PM
atmosphere not recirculated.
lightsource
09-10-2008, 08:27 AM
bump, anyone else?
renegade_ewok
09-10-2008, 08:28 AM
Thats your BOV, my car does the same thing, falls to like 3-400 RPM and almost dies but catches itself
Sileighty_85
09-10-2008, 08:44 AM
yeah its the BOV tighten the spring down a little a bit and check for leaks

Try cleaning the the IACV also, Im sure its never ben done before
nzmoman
09-11-2008, 12:24 PM
chances are tightening the spring wont fix this. It will still happen when your BOV opens. you are still running a MAF so you engine thinks there is more air in the system than there is. The only way you can keep that from happening is to use throttle control after high rpm. or recirculate your BOV
lightsource
09-12-2008, 12:21 AM
Well, I went to a mechanic (Alex from Integrated Performance) the same day I posted this, and it is my IACV, now I bought a new one but maybe I jumped the gun and cleaning it would have been sufficient. But we'll see.

I ordered mine from a Zilvia.net member so we'll see what's up. I'll keep you all posted.