krazie1

what would cuz a rev limiter type problem
as i get to 6500 to 7000 rpm's
it does it
and once there it won't go passed that point and throws a gang of smoke

any ideas
would like to fix this before i jump on the dyno
and just find out it is something broken
my installer and some mechinacs are scratching their heads

so i thought i would present this to fellow swap experts....

b18cx

What ecu are you running? And what, if anything has been done to the ecu?

Sounds alot like the stock LS rev limiter.


Modified by b18cx at 8:50 PM 1/22/2004

psychotic_z

Ditto, what's with the ecu? Might check your oil too, your oil would keep you out of VTEC and cause an early fuel cut.

krazie1

i doubt it is ecu

i got a mugen programmed pr3

and oil well i am running 5-30 since it only has about 1300 miles on the motor since the build up

justinh595

the ecu is throwing the rev limiter for a reason, the smoke is normal thats fuel cut. as for the reason... almost sounds like cold rev limiter, coolant sensor problem, is it hitting vtec at all?

krazie1

what do u mean coolant senor???

never thought of this

and i got everything to keep the car cold

maybe i guess to cold

please let me know how to search of this problem

and if i pinch the line it is coo no probs to go pass this limit

but then again like u said if the car is getting enough fuel it will go pass the fuel cut huh???

and where can i begin to search for this problem???
cold sensor

justinh595

theres 2 coolant sensors, one is for the stock temp gauge in the car and the other goes to the ecu. if one of the sensors is bad it might hit cold rev limiter. what does your temp gauge say after it runs for awhile. does the car hit vtec? what temp thermostat is in it? there is a lot of things that could make the ecu hit cold rev limiter. check every sensor in the engine bay to make sure they are getting a good connection.

krazie1

okay bro

i am going to check that

and i am using the Mugen fan switch, themorstat, fluidyne EG radiator...

and after a bit it stays at dead cold
goes up after a long while

i tried running new wires from the temp sensor on the head and still does the same

how can i check them?????

blackcruzan

does the car go into vtec?


Modified by blackcruzan at 11:22 PM 1/25/2004

krazie1

it doesn't seem to???

my VAFC says so but i don't fell it???

88whitehf

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by justinh595 &raquo;</TD></TR><TR><TD CLASS="quote">theres 2 coolant sensors, one is for the stock temp gauge in the car and the other goes to the ecu. if one of the sensors is bad it might hit cold rev limiter. what does your temp gauge say after it runs for awhile. does the car hit vtec? what temp thermostat is in it? there is a lot of things that could make the ecu hit cold rev limiter. check every sensor in the engine bay to make sure they are getting a good connection.</TD></TR></TABLE>

Sorry to put you down but there is only one ECT sensor on are cars. The sensor is connected to the ecu which reads the voltage of the sensor then sends the signal to your temp gauge.

If you dont think your hitting vtec, your not, you should be able to feel it. if your oil temp and car is not warm enough vtec will not engage. If you have a check engine light you are in limp mode and thats the reason for no vtec and 6500 rev limiter. So you have no vtec and thats the reason you cant rev it up so high. with this problem at hand i wouldn't rev it up past 5000 rpm's for the sake of the cams.
hope this helps.
chris

psychotic_z

You brought this month-old thread back to life to knock on someone? Come on dude.

justinh595

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by psychotic_z &raquo;</TD></TR><TR><TD CLASS="quote">You brought this month-old thread back to life to knock on someone? Come on dude. </TD></TR></TABLE>
thats funny, i'd like to argue your comment 88whitehf but the truth is i'm just way to tired and there really is no point. although it is kinda funny how you hope you help but you didn't give any helpful suggestions on how to fix it, you told him to not rev his car past 5000 because he's gonna damage the cams... now that is funny.