EARLdaSQUIRREL

well i thought i had all my vtec troubles behind me, but last night when me and my friend were on the high way, him in his 00 Si and me in my 92 Si, we thought we would see how bad he would pull on me, well to my suprise he didnt pull on me till i hit around 6 grand then at like 6300 rpm my check engine light would pop on, i turned off car, turned it back on and no CEL, well i do the same thing go to 6500 and bam CEl again, so i get home check my CEL lights and i got a code 21, which is vtec solenoid, i dont get it, what could cause this code to be thrown???

blackhatchy

check your oil, it may help.

EARLdaSQUIRREL

oil is at the top dot,i have no idea what it is

methos713

maybe your oil pressure isn't connected. my throws the same code...one of my friend was looking at my wires and says that we might of just connected the knock sensor and not the oil pressure, but i'm going to take it to his other friend to have a check at it...will let you know whats up.

EARLdaSQUIRREL

everything is connected, the solenoid, the oil pressure under the solenoid, everything, why would the CEL only light up at 6500 and up rpm's

crucial si

isnt 21 for vtec oil pressure switch?

mine went out on my 92 Si like 10K miles ago...went to honda, and got me a new one..

my price was $45...regular is around $60

its the green plug. unplug it, take it out, clean it, and try it.