was drivin my car to work the other day, and i noticed that when i got to about 4400-4500 rpms vtec wasn't crossing over....i've been having issues with my IAC/vaccum leak...haven't quite figured it out, i'm stuck on whats causing this...i'm throwing a CEL, but it could be multiple things that have been going on with the car...i have a 92 civic swapped with a 99 b18c1...converted to OBD1

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dchatch &raquo;</TD></TR><TR><TD CLASS="quote">was drivin my car to work the other day, and i noticed that when i got to about 4400-4500 rpms vtec wasn't crossing over....i've been having issues with my IAC/vaccum leak...haven't quite figured it out, i'm stuck on whats causing this...i'm throwing a CEL, but it could be multiple things that have been going on with the car...i have a 92 civic swapped with a 99 b18c1...converted to OBD1 </TD></TR></TABLE>


You said it, throwing codes and could be multiple things DUH

Check the codes bird brain

 

VTEC WONT ENGAGE for many resaons!!did u jump it and see what codes its throwing?and if your vtec is enageing at 4500 are u useing a chipped computer?cause stock crossover is 5k in most cases.

1.low on oil
2.ecu showing codes
3.vtec not hooked up right

 

i'm throwing codes 22 and 23, i know code 23 is the knock sensor....but i dont know what code 22...checked the oil...was low by about half a quart

 

fill it up with it up with oil, fix your vtec codes andfix the knock reset the ecu and try again.


FYI your crazy as hell running a b-series that low of oil!!!

 

tell me about it...i've never let the car go that low...off topic question, i bought this motor, tranny, and ecu and i've noticed v-tec crosses over at 4500....i thought that was the factory crossover point, how would i know if this thing was chipped

 

Post a pic of the ecu ill tell u if it is chipped.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zccr-xsi &raquo;</TD></TR><TR><TD CLASS="quote">FYI your crazy as hell running a b-series that low of oil!!!</TD></TR></TABLE>

And why would this be any worse than any other motor? A half-quart, although not good, is not "crazy as hell" bad.

And if your check engine is on, vtec won't engage in most all cases.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AMG &raquo;</TD></TR><TR><TD CLASS="quote">And if your check engine is on, vtec won't engage in most all cases.</TD></TR></TABLE>

Not really true. I've got a CEL for catalyst efficiency low, and VTEC works fine.

 

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

Not really true. I've got a CEL for catalyst efficiency low, and VTEC works fine.</TD></TR></TABLE>

caUSE its a soft cel.it would depend on what code its throwing.if its in limp mode forget it vtec wont work.