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View Full Version : d16y8 no vtec?


Maleek
02-16-2009, 08:10 PM
I have a canadian '98 Si ( EX=SI ), that is equipped with a d16y8. ( i checked the stamp on the block ). I checked for a green oil pressure sensor, but to no avail, maybe I am just blind..... So does this mean somebody swapped the head? Am i doing something wrong? Pics to come soon...

knightxrider1
02-16-2009, 09:50 PM
that would suck.... pics will tell alll

Beej
02-16-2009, 11:11 PM
you want to look for a vtec solenoid, on the passenger side of the car, rear (firewall side) corner of the head.

http://got-jdm.com/images/obd2%20vtec.bmp
above image found on google images

http://www.jdmuniverse.com/forums/images/minime/Mini%20Me%20Swap%20Pics/Pic14.JPG
green plug on the right with vtec solenoid (cylindrical thing) above it

JDM_SPEC_SI-R
02-16-2009, 11:19 PM
your rpcking vtec. any cels? make sure the ecu is a p2p. if not, iu have one for sale. is the engine harness for the same enigne...a wire leadign the the vtec solenoid?

Beej
02-17-2009, 12:02 AM
just so we're all on the same page, Maleek hasn't posted his pictures yet, those were just pictures I got from searching on the net to show him where it is.

Maleek
02-17-2009, 12:42 AM
Thanks for the pics Beej, definetly wasn't looking in the right spot. As he mentioned, he found those pics off the net, and they are not mine. I'll take mine tomorrow during daylight and post them. But as i said earlier, i didn't find the green oil pressure sensor, which had me worried. What RPM range is Vtec supposed to engage on a stock engine? 5500?

Thanks guys.

squiblycivic
02-17-2009, 12:54 AM
for my y8 its 5500.

zimzim
02-17-2009, 12:57 AM
for my y8 its 5500.

x2

thats when my y8 kicks in

00 Coupe EK3
02-17-2009, 01:29 AM
yeah 5500 is lame, im pretty sure its lower on the z6's. Power for only 1500 rpms, guess thats why most people dont mess with single cams, lol
you could be hitting vtec and just not know it, my engine i can hear it engage in vtec very clearly, matter fact it hits more closer to a b16, ha
But then my buddy has the same car as me and you cant even hear vtec at all. Best way to tell if you have a vtec head is check the head code right below where the valve cover meets the engine head right above where the exhaust ports are. It should say P2J, if it doesnt then you probably had a head swap altho people would be dumb to downgrade from vtec to a non vtec head

Maleek
02-17-2009, 02:44 PM
Just checked it out, i do have that brass looking knob thing and vtec oil pressure sensor....woot!

Billy.
02-17-2009, 03:14 PM
well that's good. you were about to get the PWND stamp of shame :scurred:

Maleek
02-17-2009, 06:00 PM
Is photobucket down for everybody else? im trying to post pics of my engine bay..

Shiznit
02-17-2009, 06:51 PM
not down for me

Maleek
02-17-2009, 07:03 PM
http://img.photobucket.com/albums/v497/kingmaleek/y8001.jpg
http://img.photobucket.com/albums/v497/kingmaleek/y8002.jpg

sorry for the crappy pics.....it was all i had, but i think you can make out the vtec oil pressure sensor in green and the vtec solenoid.

Beej
02-17-2009, 07:58 PM
yuuuuuuuuuuuuuuuuuuurp

Maleek
02-17-2009, 08:35 PM
Sweet, now to take her up to 5500rpm, and see if it actually works! Lol, you know it's sad when you've owned a honda for over 5 months, and haven't hit vtec yet.

Beej
02-17-2009, 10:26 PM
I'm not sure if mine works either, I'm never anywhere near 5500rpms. Once though, right after I got the Civic I was in 4th and went to shift to 5th and accidentally put it in 3rd and my car got loud and sorta lunged a bit so I'm wondering if I didn't hit Vtec, though I wasn't paying attention to the tachometer.

hussain
02-18-2009, 09:01 AM
when i have an open road i turn my stereo off and heaters off and down a gear just to hear that sweeeeeeeet vtec lol

Maleek
02-18-2009, 05:13 PM
Took 'er up to 5500 today, i think so anyway. Was was to excited and forgot to check the tach. I didnt hear any change in sound, but i deffinetly got pushed back into the seat a bit. I guess thats a sign it works?

I_am_Iceman
02-20-2009, 03:50 AM
The only way you'll really know if you're hitting vtec is probably by the sound :/ You might have felt something but it really does help to turn everyhting down and pay attention to if you hear a real quick change in sound right at 5500 rpms. If you don't hear anything, you're probably like most of us civic ex owners who can barely tell whether its working or not, we don't get the cool dohc vtec sounds:/ :-P If you really don't hear anything, make sure to check your oil level, vtec wont engage if your oil is too low.

sohclubkid
02-20-2009, 04:24 AM
http://www.clubcivic.com/board/showthread.php?t=133744&highlight=vtec+light

best way to make sure

subsonic-civic
02-20-2009, 10:35 AM
I have a canadian 2000 si. d16y8. VTEC on SOHC's are quiet, its not as loud as DOHC's.

Maleek
02-20-2009, 06:55 PM
Is it true that it also won't engage if the car is not up to operating temp?

sohclubkid
02-20-2009, 07:14 PM
Is it true that it also won't engage if the car is not up to operating temp?

yep. its based off
operating temp
oil pressure
speed
and rpm

tapout954
03-24-2010, 09:43 PM
Mine kicks in at 5600. can anyone explain why? ive seen people say 5400 or 5500.

tapout954
03-24-2010, 09:44 PM
any help on maybe lowering this engagement

whoopnip
03-24-2010, 11:41 PM
any help on maybe lowering this engagement

There are aftermarket controllers, you can chip your ECU, and you can wire a switch. Plenty of ways.

Mine hits in at 2500 hahahha so im always hearing vtec lol

That sounds terribly inefficient.

I wouldn't want VTEC in my DD RPM range.

tapout954
03-24-2010, 11:46 PM
yeah i plan i chiping the ecu once i can afford it lol. id like to try to attemp to do a vtec light ... seen plenty of write ups on it but not sure if i should try it or just pay someone to do it lol. is there really any noticable diffrence when you chip the ecu?

whoopnip
03-25-2010, 12:17 AM
yeah i plan i chiping the ecu once i can afford it lol. id like to try to attemp to do a vtec light ... seen plenty of write ups on it but not sure if i should try it or just pay someone to do it lol. is there really any noticable diffrence when you chip the ecu?

I wouldn't chip the ECU on a stock Civic.

That being said, you can make some power gains by chipping the ECU and getting your Civic tuned for higher octane gasoline. The tuner can also program other features for you, such as VTEC engagement, two step rev limiters, etc. All this would be rather expensive, however.

But as I said, I wouldn't recommend it on a stock Civic.

A VTEC light isn't hard. And honestly, to change engagement, the easiest and cheapest way would be to wire a switch. Just make sure you don't leave it on all the time.

tapout954
03-25-2010, 12:20 AM
explain wire switch ? never heard of that before. btw my car isnt stock. it has mods... just looking to gain some more HP

whoopnip
03-25-2010, 12:44 AM
explain wire switch ? never heard of that before. btw my car isnt stock. it has mods... just looking to gain some more HP

I'm talking engine. Unless your engine is built for high compression, swapped, or boosted, chipping an ECU isn't going to do much for you.

I can't find any DIYs on the switch. It's kinda pointless anyway... VTEC doesn't do much in a D.