im having a problem with my vtec. from time to time it doesnt kick in an tops out at about 6,800k and then other times its fine my vtec will kick in fine and redline at 8k anyone know what could be the problem

 

its vtec mon-thurs the rest of the week its a LS

 

check your oil and get your vtec sylinoid cleaned out

 

Oil Pressure...

 

check your vtec oil pressure switch..that might be the problem..if you have a haynes manual it tells you how to check it.

 

change your solenoid filters.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MAV3RiCK478 &raquo;</TD></TR><TR><TD CLASS="quote">change your solenoid filters.</TD></TR></TABLE>

you just clean out the screen... .also for vtec to engage you need to be close to WOT and not feathering the gas pedal slowly.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Honda2nr4life &raquo;</TD></TR><TR><TD CLASS="quote">check your vtec oil pressure switch..that might be the problem..if you have a haynes manual it tells you how to check it.</TD></TR></TABLE>

is it throwing a code? if not, check your oil....

 

Are you letting it warm up all the way before you try to cross VTEC?

 

i let the car warm up , i recently changed oil , i dont have a computer scanner to check if its throwing a code

 

my car did that not too long ago, all i did was just clean out the VTEC solonoid and hooked it back, it worked fine ever since.

 

thx fpr replys everyone

 

Do you have a check engine light?

 

not at moment it turned on once and thats it

 

You need to meet the five parameters to get VTEC to switch cam lobes.

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.

(Thanks to SurferX on Team-Integra.net for the information).

If you don't have one of the five things, you won't switch cam lobes and 'VTEC won't activate' as many people put it.

 

i went to a shop here and they told me my silinoid might be going out

 

VTEC solenoids can go bad. Look on eBay or on a junked car, you can probably get one fairly cheap. If not, try here:

http://acuraautomotiveparts.org