ok so i have a 94 accord ex, it will not get into vtec, instead it hits a rev limiter at 4800 rpms, i have checked the timing, its good and no slack, i replaced the pressure switch on the vtec solenoid and still no change, any help would be great, thanks

 

At what RPM did you expect VTEC to engaged on the F22B1??

 

i was thinking in the 4300 range, and not to hit a rev limit til the 6s

 

Sounds like your in limp mode. Have you checked for any codes on your ecu?

 

check the grounds also ... vtec will not engage if one sensor is not properly connected

 

vtec engages roughly around 2800-3100 rpm. check ecu. clean solenoid mesh.

 

ecu has no codes, and the valve has fresh seals with screens, i havent done any ground work, ive got a new solenoid on the way, im gonna give it a try, then on to chasin wires