i have a b16a in a obd0 ef with obd0 b16a 5 speed ecu. but for some odd reason my car is redlining at 7200 and the vtec is not engaging. I have taken the solenoid off and check it yes it clicks likes its suppose to so i clean the filter and put it all back together, take her for a drive and bam same **** 7200....any help please. getting pissed off

Also my ecu is throwing code 21. which has to do with the solenoid. lmk something

 

HELPPPPPPPPP i want and need vtecccc

 

What car? You only posted this 20 minutes ago. Stop spamming and fix the CEL.

 

Actually you ARE in the wrong forum. You already posted a thread here.
https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/vtec-problem-b16a-2970991/
Stop spamming.