i have a kenji chipped p28 ecu. the vtec crossover is set at 5300, but it doesn't hit vtec until 5800. i don't think its the chip. he sent me 3 chips already and they all do the same thing. why would this be happening? i checked all my wires from my tach today and they all have good connections. its an autometer 5" tach with shiftlight.

would needing a serious valve job cause vtec to come on later?

thanks

 

No, either the chip is wrong or the tach is off.

 

hmmmmm.....what would cause the tach to be off? is the tach bad?

then damn, if the tach is off, then i could really be at 5300 when the tach reads 5800? that would mean i'm shifting earlier than i should.

my car idles fine though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaeg8 &raquo;</TD></TR><TR><TD CLASS="quote">hmmmmm.....what would cause the tach to be off? is the tach bad?

.</TD></TR></TABLE>

Is the tach OEM? There you go.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Luserkid &raquo;</TD></TR><TR><TD CLASS="quote">
Is the tach OEM? There you go. </TD></TR></TABLE>

Read son.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaeg8 &raquo;</TD></TR><TR><TD CLASS="quote">
Its an autometer 5" tach with shiftlight</TD></TR></TABLE>

 

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

Read son.

</TD></TR></TABLE>

Eh ::shurgs::

 

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

Read son.

</TD></TR></TABLE>

haha dustin

 

aftermarket tach

 

How do you know when its hitting VTEC? The only way to really know is to have a light hooked up to the VTEC signal wire and see when the ecu sends the signal..

Just because you dont feel or hear it right away doesn't mean its not kicking in..

 

i can hear it at 5800 rpms. i slowly get the rpms up until i hear vtec kick in. you definately hear it at 5800.

 

Hit the redline, and see what the tach says when you do.

 

i tried that today. the revlimit should be set at 8500, but i went up to 8800, by accident. i don't even want to try to go any higher. with the redline at 8500, where it should be, i still shift at 8k. i don't want to see how high it will go cause my motor has all stock internals.

 

then your tach is prolly screwed or something, what's the idle show at?

 

usually it starts the crossover at 5300 and ends at 5800. On my b16 it crosses over at 5300 and by 5800 that's when I can hear vtec

 

900-1k