prob isn't it but do you use synthetic oil.i have been told more than once that sometimes vtec wont engauge if you use synthetic oil. also to comment on something above my car throws a code all the time and my check engine light is always on and vtec works just fine. the code is just for the o2 so i just leave it be causse i dont care. maybe that not what you meant.

 

How do i pull the code to see what fault it is? my car is a 1999 an i dont think it will tell you?

 

You need to take your car to an Autozone or a place that will pull the code for you for free. They have to hook up a computer to a port on your car...normally found under the dash. Otherwise you can take it to a garage, but they charge a good chunk of change to hook up a computer.

 

no they dont charge you .. the autozone i go to does it for free. and they print out the code for you and it says what exactly is wrong with it. in my case it was an O2 sensor.

 

Problem guys im from the uk not that states so im fkd an honda pull ur pants down

 

you dont need to bring it to an AutoZone. I have a '99 and read my code like this:

https://www.hondacivicforum.com/m_152006/tm.htm

 

thanks ill try that if my new leads an plugs dont work! Its only throwin a code when its been going 8 mph for a while........ ill keep you updated.....

 

i meant when its been goin 70 mph or over for a few min thats wen all power dies......

So if it throws the code at this speed how do i keep the code because when i turn the engine off wont the code be lost?

 

Here's the first tester I came across. I would do some calling around to the local parts suppliers first though to see if one will check it for free.

http://www.amazon.com/Actron-CP9125-.../dp/B0007LEG2K

Note: The code stays until you reset it.

 

Well iv just fitted my new leads an plugs engine fires up an sounds good till u put ur foot down vtec kicks in but no more power[&o]an that wierd rattle blow sound starts!

So can anyone tell me where to find the ECU is an ill try gettin the code myself im a bit skint!