alright guys i have $100 to anyone who can help me fix my problem im havin with my 2000 Si i have been workin and workin and WORKIN with this thing and i cant figure out what the deal is...if anyone can help me figure this out or point out my problem and it FIXES it..you get $100 which i will send through paypal..ok on to the problem....ok my car is converted to obd1 has dc header, aem intake, full 2.5 exhaust with a guted cat.

no internal mods what so ever only bolt ons..the car hits vtec like it doesnt have it..my exhaust is really deep UNTIL i hit vtec... when vtec enageges the intake gets REALLLLLLY loud and the exhaust will go quiet all u can hear is the intake and thats standin outside of the car as it goes down the road...and sometimes when im goin down the road just crusin bout 3k for acouple miles stop and take off about half throttle vtec will engage 1k rpm's too early but will engage hard.

BUT u can only hear the exhaust pop from engagement and no intake and when u get to like 6k it'll make this wierd sound from the intake and go back to the shitty style and intake go loud and exhaust so back to nothen...i have chaged the fuel filter, checked the dizzy timing, put a bigger fuel pump on, spark plugs, cap and rotor button, AND gutted the cat thinkin it was clogged..and this all was goin on b4 i converted to obd1...please no smart *** comments or stupid sayin that will take up this thread..i have done EVERYTHING and i cant seem to get to whats wrong with it...


Modified by EM1_ at 5:30 PM 4/24/2006

 

why is your car converted to obd-1

 

What ecu are you running? Also, have you hooked up a test light on the vtec wire from the ecu to see when it is engaging under different circumstances?

 

send the money to dhicks@homexpressway.net ........ you dont have a problem, you have cheap exhaust, when the turbulence gets high enough it makes the buzz (from the exhaust) once vtec engages it quits and you hear normal exhaust and intake. ok, dont send any money, but i dont see a problem here, sounds like you dont have a resonator in your exhaust.

 

i have an apex resonator...ALSO i guess i should mention that when vtec engages the car just sounds like its revin out...and not goin anywhere..and c'mon i got beat by another si with same mods i have with 17's...and his car runs no where near like mine..i have had alot of b series motors and this one is the only one which has givin me this kinda problem...and i have tried diff. vtec siliniods..but it made no diff. im runnin a GSR ecu BUT this problem was goin on b4 i converted and b4 i gutted my cat..

 

also..if i didnt have a resonator the exhaust would be HELLA loud...i mean the car feels like i have more trq than HP

 

hell..i got beat by a stock EX with 160k miles :S SOMETHIN is wrong with it..

 

Send the money to bebz_216@yahoo.com
Lol

Well ur problem might be the ecu if u have a friend that have a p28 or something try it and if it doesn't do ur problem then its ur ecu k

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EM1_ &raquo;</TD></TR><TR><TD CLASS="quote">hell..i got beat by a stock EX with 160k miles :S SOMETHIN is wrong with it..</TD></TR></TABLE>

ouch.

 

ok if i switch ecu's and it fixes it..$100 on its way if not...YOU SUCK!! lol j/k i been tryin to fix this problem for like 4months

 

Try hooking up a light to see if vtec is engaging irregularly. Oil pressure and level good?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EM1_ &raquo;</TD></TR><TR><TD CLASS="quote">i have an apex resonator...ALSO i guess i should mention that when vtec engages the car just sounds like its revin out</TD></TR></TABLE>

Your clutch could be slipping.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spoon95eg &raquo;</TD></TR><TR><TD CLASS="quote">Send the money to bebz_216@yahoo.com
Lol

Well ur problem might be the ecu if u have a friend that have a p28 or something try it and if it doesn't do ur problem then its ur ecu k</TD></TR></TABLE>

alright, thats a good idea, lets put ANOTHER incorrect ecu onto it, maybe that one will work better

 

why dont you just keep it obd2b and run the correct ecu.. hmm that sounds like a good idea to me.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jerbear! &raquo;</TD></TR><TR><TD CLASS="quote">why dont you just keep it obd2b and run the correct ecu.. hmm that sounds like a good idea to me.</TD></TR></TABLE>

He said the issue was there before the ecu swap. There's nothing wrong with converting to obd1. I did it from obd0 and the car runs like a champ...

 

why dont you take it to honda
it may cost less..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sh!ttyLS &raquo;</TD></TR><TR><TD CLASS="quote">alright, thats a good idea, lets put ANOTHER incorrect ecu onto it, maybe that one will work better </TD></TR></TABLE>

What r u talking about of course u need a p28 CHIPPED cuz if not u won't be able to use it on dohc VTEC common sense

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sh!ttyLS &raquo;</TD></TR><TR><TD CLASS="quote">alright, thats a good idea, lets put ANOTHER incorrect ecu onto it, maybe that one will work better </TD></TR></TABLE>

What r u talking about of course u need a p28 CHIPPED cuz if not u won't be able to use it on dohc VTEC common sense


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EM1_ &raquo;</TD></TR><TR><TD CLASS="quote">ok if i switch ecu's and it fixes it..$100 on its way if not...YOU SUCK!! lol j/k i been tryin to fix this problem for like 4months</TD></TR></TABLE>

It will solve it for sure


U haven't try changing it to different ecu right??

 

p28 and p30 maps are not that different. I doubt it would just be the ecu. There's nothing on the ecu that's like oh yeah, I'll only run one camshaft today. And that doesn't make sense anyway considering he said the problem was there before the ecu swap.

 

I know its not that diffence but then again ecu controls the vtec timing and engagement fuel delivery

 

WAAAA, my car is slow, waaa i lost to a sohc, your car just sucks.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dontgivafuk &raquo;</TD></TR><TR><TD CLASS="quote">why dont you take it to honda
it may cost less..</TD></TR></TABLE>

Don't think they'll cover it because of the aftermarket it parts like that


YOu can't just go to honda and be like "my apexi exhaust is making a weird sound"

 

my $0.02, you're a tooth or two off on the camshafts OR your TPS is off. A distributor problem will behave like this also ut will more than likely set a CEL. (your CEL is off right?)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spoon95eg &raquo;</TD></TR><TR><TD CLASS="quote">What r u talking about of course u need a p28 CHIPPED cuz if not u won't be able to use it on dohc VTEC common sense

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

or you could just run a P30 instead like honda intended if you're really trying to see if thats the problem? common sense

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SVOboy &raquo;</TD></TR><TR><TD CLASS="quote">p28 and p30 maps are not that different. I doubt it would just be the ecu. There's nothing on the ecu that's like oh yeah, I'll only run one camshaft today. And that doesn't make sense anyway considering he said the problem was there before the ecu swap.</TD></TR></TABLE>

SVOboy is right though, his problem most likely isn't even his ecu. Though, P75 maps probably aren't all that different compared to P30 maps either.

 

just my experience with a tooth or two tooth off the timing on myi let go the gas to like 15% throttle its bugging and when vtec kicks in still normal but u i know i lose power cuz of the extra timing

and like what he said he havent touch anything on the internal