my vtec doesnt kick in my b16a. can someone give me a list of stuff that i should look at that would have to do with this problem...

my cel comes on only when i punch it... im gonna check the code soon.

if my vtec solenoid is hot while cars on, does that mean its working fine?

behind my intake manifold, thers a short vacum line with a screw on the end. when i opened it, my idle starting jumping up and down, and when i covered it went back to normal. because someone told me that the vacum house for VTEC might be messed up, but i couldnt figure it out.

i dont know if this is tied up to it but my rpm tach on my stock VX cluster doesnt work no more.

the thing is i just changed my motor, i had another b16 in it and everything worked fine, vtec kicked in, rpm's showed, so im curious as what could have gone wrong after i put in the new motor. NE1 plz. thanx


Modified by ViXoN Hatch94 at 9:35 AM 4/29/2004

 

Taken from team-integra.net

In order for the ECU to initiate the VTEC system, 5 engine conditions must be met.

Temperature: The engine must have reached normal operating temperature.

Throttle Position: The throttle must be open far enough to allow for increased airflow in VTEC.

Vehicle Speed: The car must be in motion (wheels spinning).

RPM: Engine must spin to it's target value. The GS-R will send it's "GO" signal for VTEC at 4400 RPM while the Type R sends it's signal at 5700 RPM.

Oil Pressure: The engine must be operating with normal and safe levels of oil pressure determined by the VTEC pressure switch.

The ECU will send a signal for a spool valve to open. When this valve opens, oil is allowed into the pivot shaft inside the valve rockers and directed into the center rocker. Inside the center rocker, a set of pins are forced outward by the oil pressure and lock inside the rockers to both sides. This entire process occurs in 1/10 of a second.

 

ya these are pretty much common sense but what im lookin for is what wires to check under the hood, what vacum lines, how to check if vtec solenoid is workin. the complicated stuff. thanx neway!

 

pull the damn code then come back and we can most likely tell you how to fix/get rid of it.

 

the code is a 22, vtec pressure valve... help!

 

ok here are some pics of suspicious things...



thers a vacum line from the intake manifold with a screw on top. when i took it off, the engine revs goes up and down!







these three pics are of a plug near the dist, its a 3 wire plug and its empty...



this is a 91 sir b16 vtec solenoid, does anyone know if its supposed to have the little round piece in the middle, this is taken off a motor out of the car, so im not sure if the piece fell when we took apart the solenoid.




this is my 92 Sir II b16 vtec solenoid, with this on i got the code 22 from ecu, vtec pressure valve. and this has the little round piece in the middle.

I FINALLY GOT SUM PICS UP, I HOPE SUM1 CAN HELP ME! THANX

 

that plug by your dizzy is for the EGR valve that comes stock on VX engines so it is not a concern for your motor. when was the last time you changed your oil? my friend had vtec problems like this and when he changed his oil, it started to work fine.

 

im not sure what type of oil was used but about a week ago.

 

check your ground wire on the thermostat housing. thats about all i can come up with now

 

a friend told me to run a seperate ground from the thermostat to the frame with thicker wire... you think that will be better?

 

oh ya and how can i check to see if my vtec solenoid is working? thanx!

 

also.. might seem basic, but sometimes often overlooked; check your oil level.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ViXoN Hatch94 &raquo;</TD></TR><TR><TD CLASS="quote">ok here are some pics of suspicious things...



this is a 91 sir b16 vtec solenoid, does anyone know if its supposed to have the little round piece in the middle, this is taken off a motor out of the car, so im not sure if the piece fell when we took apart the solenoid.




this is my 92 Sir II b16 vtec solenoid, with this on i got the code 22 from ecu, vtec pressure valve. and this has the little round piece in the middle.

I FINALLY GOT SUM PICS UP, I HOPE SUM1 CAN HELP ME! THANX</TD></TR></TABLE>

You need those O-rings on those solenoids, this is what's probably triggering your code, if you don't have those O-rings use Hondabond or gasket maker to fill up those grooves (better to use O-rings though). Otherwise maybe the VTEC solenoid(s) are just not working.

 

could you let me know if you get it working,cuz im not sure my vtec is working either

 

i took it to a shop today... my rpms dont work either, they told me to drop off the car for a whole day in a couple days so they can look at it because something isnt connected for rpms, so my motor/ecu doesnt know what rpm its at to engage vtec. thats what they told me... so im just gonna see what happens when i drop it off.

 

thats b.s. just because your cluster isnt showing your RPM doesnt meet your motor isnt producing them. car running = motor turning over = producing rpm.

Im betting its the fact that you dont have the o-rings and the little screen on your solenoid.

 

no i used the solenoid with the O ring... i have two, the thing is it kinda feels like vtecs comin on 1st gear but if it is, its very very weak!! i tried downshifting but nuthing!

 

okay heres the situation... i the mechanic couldnt figure it out!!!

what are the things i should worry about that would have to do with vtec excluding the parts that would remain under the hood when doing a swap(wiring, ecu, etc.)
for example what things should i look for on the new motor? solenoid? oil pump?

its a new motor, new throttle body, intake manifold. what would go wrong within these things that would affect vtec??

this would be really helpful!! thanx guys and read carefully!

 

Have you checked the wire going to the soleniod it may not be all the way in. That just happened to me. The vibration from the motor made the wire come out some but it still looked like it was in. I went through all this stuff trying to figure out what was wrong and thats all it was.

 

no it wasnt that, ive had probably 4 people look at it already, to me it seems like the only place i can take it to is a honda mechanic which isnt cheap.

someone told me it might be that the motors oil pressure isnt at the rite psi for vtec. and i mite need a new oil pump. is this common?

 

no, its not common. it makes sense, but its not common.

 

hey i don't know if someone mentioned this already or not, but on my bros 00 si his car went into limp mode because the connection of a sensor got loosened so no vtec or anything. So check the sensors

 

code 22 is oil pressure switch.. check the connection at the ecu d6 pin and the green plug on your vtec solenoid itself... wires may be falling apart possibly? if not change out the sensor..

 

i already changed that green sensor, and what is the ecu d6 pin... is it a wire on the ecu? or under the hood? thanx!

 

bump cuz having no vtec sucks!