Vtec not working?

[seanizshort]

Hey guys. :) I got a 89 crx sir
So it's got a b16a and yeah only every now and the the vtec does not work. I skews wait til the motor is warm before I give it a squirt..

I heard that it might me the solenoid needs a clean?

Any suggestions and also if you got and answer please help me by giving me instructions on how to fix it. :)

Thanks all hope someone can help. :)

[_bORdO_]

try (http://www.ozhonda.com/forum/showthread.php?155027-vtec-not-kicking-in&highlight=vtec)
a (http://www.ozhonda.com/forum/showthread.php?13702-vtec-not-working&)
search (http://www.ozhonda.com/forum/showthread.php?152177-Vtec-playing-up!&highlight=vtec)
next (http://www.ozhonda.com/forum/showthread.php?148391-No-VTEC-CEL-and-YES-i-have-oil..&highlight=vtec)
time (http://www.ozhonda.com/forum/showthread.php?144226-Vtec-aint-working-s&highlight=vtec)

:thumbsup:
your welcome

[seanizshort]

Thanks. ;)

[ch-44-pp]

Hey man when was the last time you changed the oil? I know that they can chew through a bit so I make an effort with my b16 to do the oil changes more regular than recommended, and when the oil is low vtec will kick in later or not at all. I had this same problem so try that:)

[seanizshort]

yeah thanks mate the oil is fine nice and golden and still full. so yeah. got me wondering. :)

[Benson]

Vtec only works when the car is at operating temp

[seanizshort]

yeah i know.... but its not even working when its at operating temp.. so im still a little un sure of what it is. :/

[TODA AU]

Check the value of the ECU coolant temp sensor.
The reading on the dash means nothing.

[seanizshort]

ok awsome. where bouts do i find that valve.?? :)

[markismaximus]

It's value, not valve.

There are two sensors under the dizzy. Both of which are temp sensors.

One controls the temp gauge and the radiator fan, it has a single wire, bullet style connector with a YEL/GRN wire.

The other is the ECU sensor, it has two wires. This is the sensor you need to check.

You will need a multimeter to measure the resistance when at operating temp.

At operating temp there should be between 200-400Ω of resistance. If there is not replace the sensor.

[seanizshort]

thanks for that. ;) il check it out and let ya know. :)