No Vtec when engine cold...
09-26-2003, 08:02 PM
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No Vtec when engine cold...
Anybody ever noticed that when the engine is relatively cold (like stopped for a couple of hours) vtec wont work for the first 30 sec. or so. I know its not the best to rev a cold motor but I noticed this twice recently. My B16 works great with no problems, I just had to ask...
Is it possible that ECU picks up water temp sensor's info, or that the cool oil will not turn on the vtec oil pressure switch - therefore no vtec?
Thanks for replies
Is it possible that ECU picks up water temp sensor's info, or that the cool oil will not turn on the vtec oil pressure switch - therefore no vtec?
Thanks for replies
09-26-2003, 08:06 PM
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Re: No Vtec when engine cold... (Fardoche)
to put it simply the ecu has a couple of settings, 1 setting for below warmed up, and 1 setting for warmed up. When the ecu sees the water temp is below 110F i beleve it wont enable vtec and it's rev limter is 500-750rpm lower
09-26-2003, 08:11 PM
#3
No tears. Only dreams, now.
Man... You really need to research **** before you go slapping it into your car. Yes, water temp is one of the variables for VTEC... and don't go slamming it off the limiter while it's in reserve mode like that. It's there for a reason. Oh yeah, and it's 80 degrees.
09-26-2003, 08:12 PM
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Re: No Vtec when engine cold... (Sideout)
yeah my b16 runs like *** in the morning or when sitting for a long *** time, always gotta warm it up for a couple of minutes before i really drive it. someone told me that my chipped ecu has somethin to do with it as well. but after that its perfect
ive always drivin like a grandma the first few minutes of my car being on, an old habit i guess, no matter what im drivin
ive always drivin like a grandma the first few minutes of my car being on, an old habit i guess, no matter what im drivin
09-26-2003, 08:34 PM
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Re: (VashTheStampede)
Chill man... I wont hold you liable if my engine blows...
Nobody's talking redline here, 4800-5000 rpm vtec crossover, on a motor that ran 1-2 hours earlier.
Just trying to get info to backup my assumptions
Nobody's talking redline here, 4800-5000 rpm vtec crossover, on a motor that ran 1-2 hours earlier.
Just trying to get info to backup my assumptions
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09-27-2003, 11:16 AM
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Re: (VashTheStampede)
god damn are you ******* serious? whya re you trying to gun it first thing when you start it anyways? wait till its warm or your motors not gonna last very long.
09-27-2003, 11:28 AM
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Re: (VashTheStampede)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VashTheStampede »</TD></TR><TR><TD CLASS="quote"><moment of realization>
haha.. Noah just reminded me why I was angry with you!!! I take back what I just said.
</TD></TR></TABLE>
bwuahahahahahahahaha
haha.. Noah just reminded me why I was angry with you!!! I take back what I just said.
</TD></TR></TABLE>bwuahahahahahahahaha
09-27-2003, 11:39 AM
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Re: (Noah *****)
**** when i go out and start my car first thing in the morning i revv it up to about 6 grand 
then i drop the clutch and im off with my foot buried in the floorboard. isnt that what your suppose to do??
then i drop the clutch and im off with my foot buried in the floorboard. isnt that what your suppose to do??
09-27-2003, 11:41 AM
#13
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Re: (misfithamster)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by misfithamster »</TD></TR><TR><TD CLASS="quote">**** when i go out and start my car first thing in the morning i revv it up to about 6 grand then i drop the clutch and im off with my foot buried in the floorboard. isnt that what your suppose to do??</TD></TR></TABLE>
Of course, it helps warming the engine up.
then i drop the clutch and im off with my foot buried in the floorboard. isnt that what your suppose to do??</TD></TR></TABLE>Of course, it helps warming the engine up.
09-27-2003, 07:51 PM
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Re: (misfithamster)
i know a trick to make your engine warm up faster. sit in your garage and bounce it off redline. make sure all the doors are closed and your car's windows are open.
09-27-2003, 07:58 PM
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Re: No Vtec when engine cold... (Fardoche)
u need to keep ure rpm's relatively low when ure engine is cold...wait till ure engine is at normal running temp before u ever rev that high..trust me, i tried to blow up my y7 cuz my parents thougth it was pointless to do a motor swap when i had a good motor, so i did evrthing i coud to kill it and revin it high when it was cold was what pushed it over the edge
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