i made two thread because i thought that this forum would be better to put it in than forced induction so if any one complains then mods please delete the one in FI

ok well i have a built ls/vtec turbo. i built this car a long time ago sold it and it got whored around for a while and now i finally got it back. but now vtec doesnt work.
i have plenty of oil pressure and i have the aem showing that vtec is getting power but it isnt working. i changed the solenoid and all that .. i even hooked it up to a battery and it made the click . but i still dont get VTEC .. this is a big problem because the car falls on its face after 7k when i use to have it it would pull all the way to 10K... any ideas or sugestions?

 

wiring??...

 

i checked everything and the wiring is fine... i dont know some one said something about some dowels. maybe?

 

Check the temperature sensor……

 

so what is a vtec oil dowel pin? where exactly does it go.. what would happen if i didnt have one.. cuz i think mine may be gone?

 

you take your vtec solenoid off... and inside it theres a DOWEL in there.. you'll see it... but if theres a big hole then you dont have one..

 

ok some one told me that it was under the middle cam cap?? any ways... heres what happened i had the LMA(lost motion assembly) replace and the springs and retainers done all at the same time .. once the head was put back together the motor smoked a bit and vtec has never worked since/?? any ideas?

 

do you let the car warm up??? do you have any CEL's?

 

yes always and no cels. .. could it be the dawel pin that foes under the center cam cap ?? if it is missing would that cause this problem??? everything works properly( solenoid opens lal that stuff
) but for somereason ... no vtec

 

also ..... the motor spun a rod bearing a while agao could it be that the bearing material went through the motor and the journals got too large?

 

ok so i went ahead and hooked a switch to it and it opens and everything but it still wont cross over??

 

help me out people....

 

this is a crx?? so you had to wire in the vtec pressure switch?? and run the line str8 thru your firewall?

 

no sorry the car is a 94 del sol ... fully built ls/vtec... running on aem ems .. i replaced the entire vtec solenoid/ pressure switch today and still nothing. aem even shows that its giving the power to the solenoid but nothing happens. i replaced the dowel pins. check everything over twice and the oil psi is around 75 at WOT .. what else could it be?

 

i need more ideas.

 

hey man im having the same problem i think i have oil pressure cause the light isnt on and i have run all the tests on my snap on code reader thingamajig the seloniod clicks and turns on and all that but the vtec pressure switch isnt seeing any pressure i have replaced the selonid and the pressure switch. by the way my car is just about bone stock 99civic si with the stock b16a2. the vtec just up and quit and im stumped. i have made an appointment with the dealer cause it still has a warranty for about 2000 more miles hopefully i dont get pittaly fucked around. if they do decide to fix it i will be sure to let u know what was wrong with mine if they dont i guess im pullin that sumbitch out and building a new motor this winter im me if you find out any more civicsidohc99 or booostedvtec9985 lots of luck man

 

thanks
and yes def. keep me posted... i might be stuck with buying a new head and just kleeping all my internals if i dont figure this damn thing out.

 

You replaced that dowl pin in the center cap? Cause' I think that's where the rocker assy. gets its oil from for VTEC.. Also did you take a look at the cams themselves? Might be a long shot but what kinna cams are they? I had a guy up here in Vegas who had crower cams in his LS/VTEC w/a GSR head and he also had no VTEC.. Took the cams out and the VTEC lobe was pretty much grounded down to the same lift height as the non VTEC lobes...

Pull the VC off and just have a look that the VTEC lobes.. worth a shot..

 

yes i replace the dowel pin under the middle cam cap and i didnt pay much attention to the cams .. they are CTR's i will def. check them out tomarow.. thanks for all the replys and keep the ideas coming.

 

under the middle cam cap there is a dowel and an O-RING!!

If that bitch isnt there, then peace out tec

 

yup checked that today .. both are there . and i replaced them with new just because.

 

im gonna check that O ring under the center cap tomarrow morning and see whats up with that im just stumped im goin bald from pullin my goddamn hair out i hate new **** i wanna go back to a few wires and pushrods no ecu just a big controld gas leak ontop of the poowerplant haha

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 99civicsib16a2 &raquo;</TD></TR><TR><TD CLASS="quote">im gonna check that O ring under the center cap tomarrow morning and see whats up with that im just stumped im goin bald from pullin my goddamn hair out i hate new **** i wanna go back to a few wires and pushrods no ecu just a big controld gas leak ontop of the poowerplant haha</TD></TR></TABLE>

Don't give up .... Remain strong!!!! ***puts fist into the air*** LOL

 

well i think im gonna go through my whole motor ... the whole wire tuck .. check the aem .. check the cams all the dowel pins again.. and then from there i will be3 buying a bare head to put all my internals into and hope that i dont havethe same problem.

 

Hey, check your VTEC oil pressure sensor. Mine is in and out. I have NO CEL's and plenty of oil pressure. The switch just thinks there isnt, and once in a while it cuts out VTEC. Try it, apparently they fail on occasion. Its a normally closed switch (correct me if Im wrong) so pull it out and run an ammeter on it for continuity. Ryan