Is it just coincidence that once i installed my k&n oil filter and royal purple oil that my vtec doesnt work now?
I put in 5 1/2 quarts..dunno. any info would be great

 

i could be wrong but oil capacity is 4.6 quarts that might be your problem

 

really? it was only reading at the bottom dot on the dipstick at 5 quarts and the second dot @ 5 1/2

 

i got the 4.6 capacity from my owners manual, if the vtec was working before and now it isnt then the oil level would be my first guess

 

its 4.6 for sure no doubt about it.

 

I'm using 5 qts RP 10w-30 + Mobile1 Filter and no problems....

 

5qts you might get away with but he's over by almost 1qt

 

Yeah that could be a problem....

 

check the dipstick after 2min of running the motor. usually 4.5qt is enough

 

Probably Royal Purple is too smooth, you didnt even feel that boost from the engine.

Did you even warm your engine up when checking the oil level?

 

UMM, I PUT A LITTLE OVER 4.5 QUARTS IN, THEN TURNED IT ON AND RAN IT FOR A SECOND, THEN CHECKED IT AND IT WAS BARELY ON THE LOWER MARK. SO I PUT IN SOME MOR UNTIL IT WAS UP TO THE TOP MARK ON THE DIPSTICK. I WAS ALSO TOLD THAT IT MIGHT BE THE SMOOTHNESS OF ROYAL PURPLE THAT I DONT FEEL VTEC..NAAAAH

 

been using royal purple for years on the CL-S, no issues. also 4.6 is correct, but i use 5qt.

no vtec is an oil pressure problem. too much or too little can mess with the oil pressure.

 

Not to be a dick...but...you're talking about a 13 second car and you don't know how to change your own oil? I mean a minor fuck up or lapse in concentration when working on a car (or anything for that matter) is normal but damn...

 

Ditto. Well...not years.

 

haha..whatever man..it was a simple mistake

 

owners manual is the greatest.. invest in one if you don't have one. hope you fixed it

 

drain a quart and see what happens

 

simple mistake no need to bust balls

 

I don't mean for you to get asshurt. just sayin. we all make mistakes. just make sure you learn from em!

 

Just drain it into a gallon jug, well a pan and then into the jug and see how much you have, and then put in a little over 4-4.5qts in the engine and about .25qt. in the oil filter, give or take, you basically want around 4.5 total.

 

have the correct amount of oil in and still NO VTEC!
Anymore trouble shooting ideas?

 

how is it you know you have no vtec ? and what happens to the car at 4800 + rpms?

 

no hard pull like it used to at 4800 and i cant hear it either. the car seems to be running fine other wise

 

i had this problem. do you have a management system like an safc?

 

I run 5w20 royal purple wih no problems. I wonder if you messed something up from overfilling it.

 

... my car when low on oil would fuel cut at 4800 like if you hit the rev limiter and ultimately will throw a code , im curious as to if you reall have a bad IMRC and thats ur loss of power ? know how to check that ?

 

Oh the old "I can't hear my VTEC" post.

 

plus being in fl. its hot now so the sound and power is much less

 

note to self, don't visit steve in florida this summer or no vtec for me

 

thats definitely his engine running in limp mode.. has something to do with the management. reset your computer by removing the positive terminal for 15 minutes, install your oil TO THE CORRECT LEVEL!! and restart your car (after plugging in the battery) and let us know if it works..

 

i dont know how 2 check that.
Thanks to all the replies. Yes it is muggy and hot right now, which would affect performance, but mine isnt from that cause at night it still runs slow.Maybe my plugs are bad from running straight exhaust?..dunno..lmk on the imrc..thanks

 

also use 5-w20 royal purple - no issue vtec works as it always did

 

5w-30 ist much different than 5w-20, but could that be a problem?

 

^ no that is not the problem.

 

You can check your plugs but bad plugs wont cause the problem you have.
Straight exhaust doesn't effect your spark plugs if anything your car will run a little leaner and it won't get that crud on them from a car running rich. Thats kind of simplifying it of course but you get the idea.

I've used 5-30 before with no problems.

So what have you done so far on the car, as far as checking it out?

 

To be a little more specific for you, I have been running M1 5W-30 since 7500 miles. Im at 101400 now and not one prob with the motor

 

im pretty sure limp mode wont allow u to exceed 5500 if i remember and the dash would be lit up ... and u wanna remove the neg terminal not pos.

 

Yea.. but give it a little while.....

 

I usually deal with 99-00 SI's but vtec is all the same.

Is your speedo and rpm gauge working

is your oil at correct level

do you have any CELs



I'd do another oil change back to stock 5-30w and oil filter just to cover the bases. you'll just have to start knocking out posibilities.

 

its not the oil or the weight ...