VTEC question
When my call is cold. Before three bars on the temp gauge. I pull out of my garage and on the street. At 6200 rpm's (vtec) the car almost shuts off. It is like the fuel is cut off. This happened right after the spark plug change from the dealer. I did a search, and found hesitation but the severity off what happens to mine seems different. I was wondering if it was the map sensor or the oil pressure on the vtec, or something that happens when the car is not warmed up. After three bars everything is fine. Thanks for your insight on this matter.
It's a safety feature of the S2000. Until the oil is warm enough to be properly coating everything and lubricating everything, the rev limiter is moved to a much lower limit. It's not just three bars either. You can get the engine warm, turn it off for a while, let it cool a touch and turn it on again. Most likely you'd still be at 3 bars. If you hammer it within the first few seconds of turning the engine on, you'd get the same cut out.
Originally posted by Sunder
It's a safety feature of the S2000. Until the oil is warm enough to be properly coating everything and lubricating everything, the rev limiter is moved to a much lower limit. It's not just three bars either. You can get the engine warm, turn it off for a while, let it cool a touch and turn it on again. Most likely you'd still be at 3 bars. If you hammer it within the first few seconds of turning the engine on, you'd get the same cut out.
It's a safety feature of the S2000. Until the oil is warm enough to be properly coating everything and lubricating everything, the rev limiter is moved to a much lower limit. It's not just three bars either. You can get the engine warm, turn it off for a while, let it cool a touch and turn it on again. Most likely you'd still be at 3 bars. If you hammer it within the first few seconds of turning the engine on, you'd get the same cut out.
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It Happen to me also, when I'm rolling at 6000rpm but even the car is very warm (I get check engine light) and once I try to pass the 6000rpm to hit VTEC, the car almost shuts off!!! I stop the car, remove the terminals battry and connect them again (no check engine light, VTEC works fine)!!! I got this problem, after i install the VTEC AFC controller. I follow the japanese instruction, which they said I don't have to insatll the VT wire, and some people said that I have to install it (do you guys think that my problem is comming from this wire. I'm sure that I did install the AFC perfectly. I might go through the wires again...maybe something came lose, because i used splice connector. please guys any help. thanks
what a great safety feature of the engine computer! You don't want to rev up your engine when it's cold anyway, the computer is just a moron-driver-filter. Reasons? Cold parts mean tolerances are different, gaps have changed, everything's non-ideal; cold means higher viscosity oil, meaning poorer lubrication to all parts of the engine, meaning increased wear when cold. Technies know that the first few minutes running a cold engine is the worst activity in normal operation.
moral of the story: take a big breath, exhale, relax, and take it easy on your S2k.
moral of the story: take a big breath, exhale, relax, and take it easy on your S2k.





why would anyone redline thier car before it was fully warmed up...man oh man.