i have a 94 civic hatchback with a 95 b18c "gsr" motor! my ecu is throwing a code 21 with is
VTEC Solenoid Valve defective circuit or unplugged / defective solenoid valve
* invalid code for non-VTEC engine
** invalid for V6 engine
so i checked the solenoid the gasket had metal shaveings cleaned that out.tryed it no vetc changed the solenoid and still no vtec? checked the the vtec pin its good, had someone look at the wireing they said that its wired up right dont know what else to do please help

 

you checked the VTEC pin and it's good... what exactly did you check?
did it have 12V on it when VTEC should be active?

someone checked your wiring, what did they check? did they ohm meter it out to make sure that the VTEC solinoid wire runs all the way to the ECU?

which ECU are you using?
chipped? stock P72?
if chipped was VTEC added? (incorrect VTEC parts can cause this CEL)


"gasket had metal shavings"
WHY did it have metal shavings in it?
there shouldn't be any...

 

I DONT KNOW MAN MY FRIEND TOOK THE VALVE COVER OFF TOOK SOME BAR OFF TO SEE IF I HAD THE PIN I DID. I DONT KNOW WHAT THE 12V MEANS? THE WIREING THEY CHECK THE DIEAFRAM AND SAID IT WAS GOOD THE CHACED THE WIRES FOR THE UNDER THE HOOD ALL THE WAY TO THE ECU. I DONT KNOW IF THE CHECKED THE OHM I DONT EVEN KNOW WHAT THAT IS BUT ILL ASK MY FRIEND WHEN I GET HOME.I DONT WORK ON MY OWN CARS AS YOU CAN TELL.LOL.
IM USEING STOCK P72 ECU
I DONT KNOW IF IT WAS THE GASKET BUT WHEN WE TOOK THE SOLINOID OFF YOU KNOW HOW THERES A SCREEN OR WHAT NOT THAT WAS FULL OF METAL **** OR SOME TYPE OF GRAY ****.THE FIRST THING MY FRIEND SAID IS YOUR **** IS PROBLEY FULL OF SHAVEINGS SO HE TOOK IT OFF AND THAT OFF AND IT HAD THAT **** HE WAS LIKKE HELL YEA THIS SHOULT BE IT BUT NOPE NO VTEC.
MAN THANKS FOR RESPONDING IM GOING TO ASK MY FRIEND ABOUT THE 12V AND THE OHM AND SEE WHAT HE SAYS BECOUSE HE WAS LIKE THE ONLY THING LEFT CAN BE OIL PUMP OR OIL PAN HE SAID MYBE THE OIL PRESSER ANT RIGHT????????DOES THAT SEEM RIGHT?

 

which harness are you using?? did you guys run your own vtec wiring??? check the ground on the vtec solenoid...and i doubt that it's the oil pump...if it is your oil pressure light should be on..

 

that picture will show you the vtec oil pressure sensor-
make sure that wire is hooked up, via a multimeter- it could be torn at a part or something

also, using a factory manual, make sure that its wired into the ecu properly

if thats not working, there might be a serious issue with the motor, where its not getting enough oil pressure, but i highly doubt that- a autometer oil pressure gauge would show you tho-

GL

 

yea i think its the stock harness and we ran our own wires around the solenoide to the ecu we checked the ground it good theres is no oil light so then the oil presser should be good then i guess. thanks man

 

okay im going to take a look at this pic with my friend when i get off work today and hopefully vtec will work thanks man but yea i guess its not the oil pressure becouse the light isnt on?

 

if you have metal shavings anywhere in your system, drain your oil, and do an oil and filter change. if there is metal shavings inside your engine, you have worse problems than not hitting vtec.

 

prolly oil pump failure, which led to low oil pressure, which in turn spun a bearing, which then lead to metal shavings in the oil


Id have a competant mechanic drop the oil pan, and inspect further-
Good luck!

 

Don't you think it's funny how we are knowledgable and competant to what is really going on, but yet we're still noob's on this site?

 

thanks man sounds good

 

yea man thats crazy but thanks for the help realy.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by shaggyeg6si &raquo;</TD></TR><TR><TD CLASS="quote">Don't you think it's funny how we are knowledgable and competant to what is really going on, but yet we're still noob's on this site?</TD></TR></TABLE>

ahha oh ive been into hondas for years now... just had a little issue on this sight hence the new name


anyways you seem to know your stuff- whatcha drive?