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View Full Version : Top end power KA24DE SCV Swirl Control Valve


boycelaforest707
08-18-2005, 09:44 PM
Aleady searched on SCV, anyway here is my problem:
1991 240sx STOCK/5spd

When accelerating sometimes it pulls alot harder than other times 4k-6k RPM and I also notice the intake sounds different when it pulls harder (kind of like when silencer is removed vs. not removed) this happens at different times, from looking at my FSM, is this because the SCV (flappers in the intake right?) are not opening all the way or at all? Or is this another problem? Basically it will accelerate then pull harder at 4k very noticable with a different intake noise, other times it will feel dull all the way up to 6k.

pr240sx
08-19-2005, 09:22 AM
TO test the SVC disconnect the SVC solenoid at the rear of the engine, driver side, brown connector

boycelaforest707
09-22-2006, 06:38 PM
Hesistation was caused by pinging, un-audible, but after 5000 ecu doesnt read knock sensor. Premium fixed it.