youdontneed2cams

Allright, first off ive searched high and low and to no avail. i have plenty of oil pressure my oil is not low, my vtec solenoid responds when current is applied and no cels. right when i get to 5500 Rpm the power dissapears and there is not even the slightest change over tone, whats the deal? I would love to fix it tonight so any help would be appreacated

97Ej6mike

Engine temp reading OK?
Speedo and tach working normal?

Do any recent changes such as intake or exhaust?
What motor is this btw, list all your engine modifications.

youdontneed2cams

the car is completly stock and the tach/speedo are dead on and the temp gauge is horizontal which is where it typically is for me

JDBubble

Vtec looks at these:

oil pressure
engine temp
tps
knock sensor
iat

maybe some more

CivicKGC

can i ask what type of engine you're driving...?

youdontneed2cams

d16y8

CivicKGC

okay.. that might answer why you dont feel anything.. you DONT feel any gain on a d16 v-tec

youdontneed2cams

let me restate this, i heard it before and i know what the diffrence between the two feels like, so thats nice to know but it doesnt help me, the car stops pulling where it used to be changing over

97Ej6mike

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by youdontneed2cams &raquo;</TD></TR><TR><TD CLASS="quote">let me restate this, i heard it before and i know what the diffrence between the two feels like, so thats nice to know but it doesnt help me, the car stops pulling where it used to be changing over</TD></TR></TABLE>

Any recent modifications done to your motor? Have you tried reseting the ECU? Are you 100% sure that your CEL bulb isnt burnt out? (not common, but possible)

youdontneed2cams

resetting the ecu, meaning unpluging it and leaving it unplugged for a minute or so?

97Ej6mike

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by youdontneed2cams &raquo;</TD></TR><TR><TD CLASS="quote">resetting the ecu, meaning unpluging it and leaving it unplugged for a minute or so?</TD></TR></TABLE>

Doesnt even need to be for a minute, a few moments will suffice believe it or not.

JDM Roc

Might not have all the oil pressure you need...

Happened to me had enought not to turn on the idoit light but not enough to enage vtec

Had to replay oil sending unit

youdontneed2cams

allright ill try that, and the cel isnt burnt out for the record it was on a few days ago for a vacuum problem which was fixed

CivicKGC

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by youdontneed2cams &raquo;</TD></TR><TR><TD CLASS="quote">let me restate this, i heard it before and i know what the diffrence between the two feels like, so thats nice to know but it doesnt help me, the car stops pulling where it used to be changing over</TD></TR></TABLE>


haha i'm sorry but i still dont understand what you're trying to ask.. because on a d16, you dont feel anything when it changes over to v-tec.. unless you boost your motor.

97Ej6mike

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by youdontneed2cams &raquo;</TD></TR><TR><TD CLASS="quote">allright ill try that, and the cel isnt burnt out for the record it was on a few days ago for a vacuum problem which was fixed</TD></TR></TABLE>

Good to know.
Answer this tho; Have you done any recent motor modifications? Intake, exhaust, tune-ups, ect?

youdontneed2cams

no shes unmolested, for now completly stock, i did remove the air box and put a cone filter on the end of the stock intake pipe as a temp set up

youdontneed2cams

To civicKGC you have a grand total of 30 posts, about the same as me, ill start listening to you when you have, lets see, about 2000, no offence but you cant tell somewone what they hear/feel

97Ej6mike

Could be a number of things. I would start with a general tune-up of the motor with plugs, wires, rotor, cap, fuel filter, oil change (stock recomended is 5w-20 i believe). Maybe run some injector-cleaner thru the tank. Could just be carbon buildup in the motor making it feel sluggish.

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


haha i'm sorry but i still dont understand what you're trying to ask.. because on a d16, you dont feel anything when it changes over to v-tec.. unless you boost your motor.</TD></TR></TABLE>

Not entirly correct : In USDM single cam's you dont notice the crossover as much, but it is there. I had a friend with a bone stock 96 Ex, and you heard the crossover quite clearly. Sohc motors such as the JDM D15b's (both the OBD1 regular and OBD2 3-stage VTEC) have fairly loud and aggressive VTEC lobes.

speedooo

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97Ej6mike &raquo;</TD></TR><TR><TD CLASS="quote">Could be a number of things. I would start with a general tune-up of the motor with plugs, wires, rotor, cap, fuel filter, oil change (stock recomended is 5w-20 i believe). Maybe run some injector-cleaner thru the tank. Could just be carbon buildup in the motor making it feel sluggish.

Not entirly correct : In USDM single cam's you dont notice the crossover as much, but it is there. I had a friend with a bone stock 96 Ex, and you heard the crossover quite clearly. Sohc motors such as the JDM D15b's (both the OBD1 regular and OBD2 3-stage VTEC) have fairly loud and aggressive VTEC lobes.</TD></TR></TABLE>

he had an intake and yours only sounds like that because you refuse to run the right ecu.

take off the solenoid and clean it out...sometimes it gets clogged

youdontneed2cams

allright, i did a midnight tune up, took off the solenoid, cleaned it, it didnt respond to any voltage input, im assuming the solenoid has just burned out. i reset my ecu, checked oil level, everything that was stated above

BUDtoker

i can feel the vtec kick really good on my 98 civic ex d16y8

CivicKGC

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by youdontneed2cams &raquo;</TD></TR><TR><TD CLASS="quote">To civicKGC you have a grand total of 30 posts, about the same as me, ill start listening to you when you have, lets see, about 2000, no offence but you cant tell somewone what they hear/feel</TD></TR></TABLE>

none taken but you cant always judge by post or even the avatar..

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97Ej6mike &raquo;</TD></TR><TR><TD CLASS="quote">Not entirly correct : In USDM single cam's you dont notice the crossover as much, but it is there. I had a friend with a bone stock 96 Ex, and you heard the crossover quite clearly. Sohc motors such as the JDM D15b's (both the OBD1 regular and OBD2 3-stage VTEC) have fairly loud and aggressive VTEC lobes.</TD></TR></TABLE>

yeah i know about that... i can hear the v-tec on my sohc loudly but i was just talking about the feel of any gain.

youdontneed2cams

alright so this sucks, i was so close to boosting, had all the pieces parts and just needed the time, now i have to fix this before i can tune, blah, thanks for all the help guys

youdontneed2cams

allrighty, its back, i think the oil was too low and the pressure wasnt high enough, so thanks for all of the help

JDM Roc

what did you do?? just add oil?