need help!!

[sr20jeff]

Been having an issue after swapping my intake manifold on my Sr20det...the car idles but with a slight miss will rev to redline sitting still but while driving under a load it begins to miss badly always near boost..and won't rev past 3500 when that takes place...almost feels like its loading up...any ideas? Any help would be appreciated..trying to get her running for the warm weather

[AZ89two4Tsx]

You will get more help here, in the SR20 section of NICO.

sr20det-forum-rear-drive.html

[SoCal-S13]

Been having an issue after swapping my intake manifold on my Sr20det...the car idles but with a slight miss will rev to redline sitting still but while driving under a load it begins to miss badly always near boost..and won't rev past 3500 when that takes place...almost feels like its loading up...any ideas? Any help would be appreciated..trying to get her running for the warm weather

mine hit a 3500rpm limit and it was caused by my MAF. One of the wires had separated and it put the ECU into limp mode. I guess as a safety precaution the ECU will not allow revs over 3500 rpm to prevent internal damage. Dunno if this is your fix but maybe it helps. Good luck

[OutToWinPAHC]

New manilfold, and now there are issues. Have you checked for a vacuum leak?

[sr20jeff]

Yea I fixed the only vacuum leak that I had and it was from the throttle body..plus my vacuum gauge is at 18-20

[OutToWinPAHC]

So you found a leak and fixed it and it's still doing it, or was this the fix?

[sr20jeff]

i fixed the leak prior to this post..so the leak isnt my problem..trying to maybe find out if a sensor would cause a reaction like this.