CarAudiophile

What are some signs that the VTEC solenoid might be going bad or is bad?.

My problems are Vtec Engaging at 4300 RPM and Rev Limiter at 7.. No CEL Lights car runs great and the CEL does work.

The car everyonce in awhile may idle kinda funny. Going up to 1200rpm and back down real quick. Then staying perfect.

Someone suggested the VTEC solenoid might be bad.

eg6h8k

we need more info on ur car...engine specs?(jdm,usdm,ecu blahblah,,) car? if the solenoid fails it wouldnt even hit vtec..but u said it comes on at 4300rpm? then it probs. not it..check ur oil..low oil can cuase vtec to toggle on and off at will..

denny's

bump

CarAudiophile

B16A1..

Basic Upgrades. Ractive Intake, DC Header, 2.5 Catback

Centerforce Clutch.. Thats it..

Car ran a 15.53 out at a local track with a 2.6 60ft. My first time at the track.

Car seems to run fine. It hits Vtec Fine. Just watching the AutoMeter tach it cuts the car right off at 7200RPM.

Some were telling me its the Tach, but at 75MPH I should not be at 6500RPM (Tach says 5500). Its really bugging me but I am trying to figure it out.

CleenSi

Hmm ECU seems to be out of whack...maybe its a P28?...how long has this been occuring?

Adam F

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg6h8k &raquo;</TD></TR><TR><TD CLASS="quote">..check ur oil..low oil can cuase vtec to toggle on and off at will..</TD></TR></TABLE>

Try that

CarAudiophile

Oil level is Fine.. ECU is the Correct ECU.. Alot of people thought it was the wrong ECU. But we pulled it out and checked it and it was right.

Its been doing it ever since the car has been running.

flat-blk-HB

This is exactly what my ride is doing..
92 CX
Ls/Vtec (b16a head on B18a block)
OBD1 p72 ECU....anybody got any more Ideas?

BUT..sometimes like when I am running the car hard it will once in a while throw cel 22 at me...

MAV3RiCK478

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CarAudiophile &raquo;</TD></TR><TR><TD CLASS="quote">Some were telling me its the Tach, but at 75MPH I should not be at 6500RPM (Tach says 5500). Its really bugging me but I am trying to figure it out. </TD></TR></TABLE>

thats a high rpm (5500rpm) for 75mph, i hit 80mph and my tach reads 4800-5000. of course it could be different trannies and that i have a b17 which is pratically a stroked b16.

have you tried changing the filters in the vtec solenoid, maybe the screens are clogged.

Patch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MAV3RiCK478 &raquo;</TD></TR><TR><TD CLASS="quote">
have you tried changing the filters in the vtec solenoid, maybe the screens are clogged.</TD></TR></TABLE>

Dont change it, just clean it out

importimage

I believe I am having problems too. When I hit vtec, I get a click noise. Perhaps the solenoid is bad atop the unit. Thoughts.

Inextricabledrvr

how do you take out the vtec solenoid screen ?

i have been trying to figure it out and nothing. It would be great with any input.

thanks

2kgs-R

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Inextricabledrvr &raquo;</TD></TR><TR><TD CLASS="quote">how do you take out the vtec solenoid screen ?

i have been trying to figure it out and nothing. It would be great with any input.

thanks</TD></TR></TABLE>


To clean the little screen you have to remove the whole vtec solenoid assembly, the whole unit that has three screws holding it onto the head, not just the top part. When you remove it watch out for oil pooring out.

Inextricabledrvr

thanks

Inextricabledrvr

thanks man, i just tried to take it off and i just took the top part off. And i check on here and here you post how to do it..haha thats funny..

well i took off the top part only and here i am in confusion on where the screen is?

i guess im gonna have to take off the whole thing..man this is going to be a pain..cuz i have a regular wrench. (all of my tools are at home(rancho cucamonga) and i am down here in San diego.

once i labor taking this solenoid off what should i use to clean it?? wd-40? carb cleaner?

thanks guys

Modified by Inextricabledrvr at 4:49 PM 6/8/2004


Modified by Inextricabledrvr at 4:50 PM 6/8/2004

2kgs-R

There are three 10mm screws holding the lower part of the vtec solenoid onto the head. Look for these screws, you'll probably need a rachet with short extension to remove these screws.




This is what the whole vtec solenoid looks like, see the three holes where the 10mm screws go?




This is where the screen is, its in between the little rubber black gasket it comes out when you remove the gasket. You can use WD40 to clean the unit.


Modified by 2kgs-R at 6:03 PM 6/8/2004

dfoxengr

clean out the vtec sol. screen

zupamario18

try checking your speed sensor if the clip fell out or its loose there wont be a checkengine light. It will still show your speedo working but when it jerks a little your vtec wont work. This has happened to me on a couple of cars hope this works for you.

92bubblesi

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">Some were telling me its the Tach, but at 75MPH I should not be at 6500RPM (Tach says 5500). Its really bugging me but I am trying to figure it out. </TD></TR></TABLE>

I have tried a different distributor. Maybe check the negative terminal of the coil in the distributor to make sure it is not corroded. If you aren't getting a good rpm signal fromt he dizzy all sorts of stuff can go out of wack, eg tachs and vtec engagment.

I had a dizzy screw up my fuel cutoff and tach before.

Jonathan Milman

Jonathan Milman

I have the same problem... did you find the solution?

D15B Problems

Mine activates at 3000 rpm and then after that my engine idles at 1200 rpm up to 1500 rpm. But when I turn off the power from the key, it idles exactly where i want it to, at 900 rpm. What might be the problem sir? Anyone?

Need help please.

D15B Problems

Mine activates at 3000 rpm and then after that my engine idles at 1200 rpm up to 1500 rpm. But when I turn off the power from the key, it idles exactly where i want it to, at 900 rpm. What might be the problem sir? Anyone?

Need help please.