luuisss

so i got a 2000 civic si with (to my knowledge) original b16a, only mods are an aem cold air intake. Been driving this car for about 5k miles since i got it and the vtec crossover was great. Smooth and on time. It was LOUD. The other day i got in my car and i didn't hear the vtec crossover. Ever since then the engine noise just stays the same as in lower rpm's. At times, i sort of kinda hear the vtec but nowhere near as loud as it was before. My exhaust sound also got noticeably deeper after at low rpm's after this started happening. I just got an oil change 500 miles ago, checked my oil, vtec solenoid plugs, i am going to get it scanned today by a friend to see if it throws out any codes, even though the CEL is not turned on. (and yes the cel works). any help will be appreciated!

grumblemarc

iTrader: (4)

Sounds like it has something to do with this.
https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/2000-civic-si-em1-smells-like-burnt-oil-after-hitting-v-tec-3055919/

luuisss

Niceee, but Vtec was still good back then and now it isnt. I checked for leaks and there isn't any.

92lxsleeper

trying manually hooking a switch to the solenoid, and manually activating vtec. could be that the solenoid is gone.

luuisss

wth you can do that? can i get more info on that?

doood

iTrader: (1)

you should only do that for diagnosing the solenoid

HondaPartsHero

What RPM will the car rev up to?

luuisss

all the way up to normal, but the sound of it is very faint. i am gonna try and clean the solenoid.

HondaPartsHero

it it rev's to the normal 8k rpm its working fine

grumblemarc

iTrader: (4)

Exactly.

luuisss

If it was working fine then i would not have posted this -_-

grumblemarc

iTrader: (4)

It is working. There is no disputing that. However, you're posting because it's not "cracking" like it used to. If you're not throwing any CELS and you can rev it that high then it's working.

Nbboy7

iTrader: (5)

^ Very ture

luuisss

Let me rephrase, it is not working properly, how it was, as it should be, etc...

Nbboy7

iTrader: (5)

^ because it not cracking loud thats the problem your having.

doood

iTrader: (1)

if it revs to 8k and there's no cel it's working. i'm not sure why this is going over your head.

grumblemarc

iTrader: (4)

Get some Beltones. Nothing wrong here.

luuisss

Exactly, and i wanna know how to fix it.

villc713

Does your speedo work? Maybe the mesh behind solenoid is dirty. Vtec won't crack while standing still. Easier to find out if it works is instead of a shift light plug up a Vtec light and see if it comes on when vtec is supposed to crack.

doood

iTrader: (1)

so you're judging this by sound?

grumblemarc

iTrader: (4)

Yes. This thread needs locked.

luuisss

Ok look i know it works! I just wznt to know why it doesn't sound ghe same.

grumblemarc

iTrader: (4)

There's no troubleshooting to be done for VTEC "sound".

beecee18

I'd personally be happy it doesnt scream anymore.

civic-ma-fish

sounds like you either test the solenoid or dont. the end.