My friends S2k is having some issues with the VTEC engaging. It suppose to kick in at 6kRPM but it sometimes kicks in at 5500 or 6k after. I cant figure out why it's doing that. It's not the VTEC solenoid or the ECU because there was no error code indicated.

Also when it kicks in, it seems to struggle and hessitate for some odd reason. It feels like a miss-shift while you see the RPM go up beyond the 6k range.

Does anyone have any theory's on why it's doing this on his?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JunY &raquo;</TD></TR><TR><TD CLASS="quote">My friends S2k is having some issues with the VTEC engaging. It suppose to kick in at 6kRPM but it sometimes kicks in at 5500 or 6k after. I cant figure out why it's doing that. It's not the VTEC solenoid or the ECU because there was no error code indicated.

Also when it kicks in, it seems to struggle and hessitate for some odd reason. It feels like a miss-shift while you see the RPM go up beyond the 6k range.

Does anyone have any theory's on why it's doing this on his?</TD></TR></TABLE>

1. check oil
2. are you waiting until the motor is warmed up?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VTECorona &raquo;</TD></TR><TR><TD CLASS="quote">

1. check oil
2. are you waiting until the motor is warmed up?
</TD></TR></TABLE>

 

Beside checking the oil level, check the spark plugs as well. Faulty plugs will cause VTEC not to engage properly.

 

I dought it could be a oil or spark plug issue. Because he just had a 60k maintenance.

 

sounds like fuel filter issue to me id change it..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Toolman &raquo;</TD></TR><TR><TD CLASS="quote">sounds like fuel filter issue to me id change it..</TD></TR></TABLE>
I take it you don't even have an S2000 nor driven one? Sorry to be harsh, but it isn't a fuel filter problem. Most likely, he isn't hitting 3 bars and it isn't warmed up enough when he tries to engage it. Also, it doesn't have a replacable fuel filter.

 

remove the three bolts holding the Vtec solenoid onto the head check the small screen btween the head and the vtec solenoid for clagging. if it is clean it out and put solenoid back in place the three bolts should be tourqued to 9 ft/lb. this seems reasonable to me especially with 60k on the clock. If it is clogged tell him to change his oil more frequently and the oil filter is a must change every oil change if hes not doing that already. i strongly recomend synthetic if hes not using it already.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JunY &raquo;</TD></TR><TR><TD CLASS="quote">I dought it could be a oil or spark plug issue. Because he just had a 60k maintenance. </TD></TR></TABLE>

I once won a spelling bee.......DOUGHT = DOUBT lol Now lets all try and use it in a sentence today!

 

Not all Honda shops know the car takes 5.5 qt of oil. Most will only put 5 in

 

if you take your car to a honda dealer make sure they have a specialized s2000 tech on their staff, otherwise they'll be problems...

 

When you guys open vtec do you take the rpm up real slow or full throttle. When you throttle slowly it opens around 5700ish..when you full throtle it opens at 6000. My friends 00' s2k was like that. Thank god mine isnt.

 

VTEC isn't only engaging based on what RPM you're at - it's based off oil pressure, engine temp, etc. There's variables there that won't make it EXACTLY 5500 or 6000 everytime.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 03s2kblue &raquo;</TD></TR><TR><TD CLASS="quote">if you take your car to a honda dealer make sure they have a specialized s2000 tech on their staff, otherwise they'll be problems...</TD></TR></TABLE>

If that isnt the dumbest thing I have ever heard in my life.

We only have a specialized Ridgeline tech, sorry.

 

He says it's going over 6k though, so I'm assuming the engine is warm. Fuel cutoff is supposed to prevent you from going over 6k when the engine isn't warm, not allow you to go over, but just not engage vtec.

My guess is Oil. Having the service done is actually more of a reason to check the oil issue then if it suddenly stopped working. If the oil filter is bad, or they didn't properly tighten it or the drain nut or whatever. Since it's based on Oil Pressure as a variable, lost oil would mean weird vtec engagement, especially mid-turn. Is anything else acting odd with the car or is it only vtec?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">He says it's going over 6k though, so I'm assuming the engine is warm. Fuel cutoff is supposed to prevent you from going over 6k when the engine isn't warm, not allow you to go over, but just not engage vtec.</TD></TR></TABLE>

Wrong.

 

In my 2000 it just stops at 6k. It wouldn't let me go over until I had two bars on the gauge. Back up your response with some info at least.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hypnosisracing &raquo;</TD></TR><TR><TD CLASS="quote">Wrong.</TD></TR></TABLE>
uhhh why? two bars will let you go up into the 7K range, but will not hit vtec. &gt;6K does not mean vtec has kicked in.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jolt-tsp &raquo;</TD></TR><TR><TD CLASS="quote">In my 2000 it just stops at 6k. It wouldn't let me go over until I had two bars on the gauge. Back up your response with some info at least.</TD></TR></TABLE>
agreed.

 

I guess i could have elaborated a bit more...on our 04, you can run it over 6k rpm first thing in the morning, but VTEC will not engage, i think it hits fuel cut off at 7k...until it gets warmed up to 3 or 4 bars. Your post said that it would not exceed 6k rpm, i was saying that wasnt accurate, atleast in ours...it will, it just wont engage VTEC.

I guess its all in how you percieve this too...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">so I'm assuming the engine is warm.</TD></TR></TABLE>

...to me, warm is when its up to temp to engage VTEC, perhaps to you 2 bars is warm, to me thats just starting up, since it takes no time to get there (like im not even out of my neighborhood, i guess we were just on different pages...i can see what your saying now though)