1sikhatch

I need some help my car sucks in high rpm. like at 5k and above its really sluggish, it will rev really fast until like about 5 then after that the rpm moves REALLY slow like it doesnt have any power up there. Its a d16z6 with a skunk2 chipped p28.

also it has a obd2 dizzy wired to obd1. everything thing else is stock.

q45mm

I'm not understanding the question?
Explain further please

FoRd FoCuZ 4 Life

bad VTEC. somethings wrong. usually vtec engages above 5k rpm and i think there is something fishy with yours.

IHateJDM

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jxmac206 &raquo;</TD></TR><TR><TD CLASS="quote">bad VTEC. </TD></TR></TABLE>

More likely no vtec. If it doesn't crossover, the motor will fall on its face. Do you have any CEL's?

1sikhatch

yea it might have something to do with the vtec, is there anyway to check it?

cause i know the vted is suppoed to kick in at like 5-5.5k rpm but when it reached that point its like the engine is straining like something is holding it back.

A matter a fact my car is so damn slow i got beat by a dx ek hatch 3 times last night so i know something is definently wrong with my car. another thing is my car doesnt even chirp second gear

1sikhatch

it only throwed a o2 sensor heater code

IHateJDM

check to make sure your oil level is good. also check the screen in the solenoid to make sure its not clogged.

1sikhatch

yes the oil level is good just changed the oil over the weekend

anyway to check if the vtec solenoid is working?

IHateJDM

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1sikhatch &raquo;</TD></TR><TR><TD CLASS="quote">anyway to check if the vtec solenoid is working?</TD></TR></TABLE>

put power to it and listen for a click (meaning it opened the path that oil travels through to the head). If the screen is clogged, or there isn't enough oil/oil pressure, vtec will not engage. Also make sure your pressure switch is grounded well.

1sikhatch

damn its raingin now, i'll try that as soon as it stops raining. any other ideas? does anyone think that the obd2 dizzy will have anything to do with it?

IHateJDM

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1sikhatch &raquo;</TD></TR><TR><TD CLASS="quote">damn its raingin now, i'll try that as soon as it stops raining. any other ideas? does anyone think that the obd2 dizzy will have anything to do with it?</TD></TR></TABLE>

it could if the timing is off, or it wasn't wired in properly. did you use a timing light when you installed it?

1sikhatch

i didn't use a timing light, but when we took it out of the other car it was working perfectly and i know its wired correctly. I'll check the vtec solenoid and if its working then i'll move onto the dizzy and timing.

nota-eg

Probably your O2 code that you're getting. Take care of the O2 and you should fix the problem after you reset the ECU.

As a matter of fact, pull the fuse to your ECU and then put it back in. Take the car for a spin after it warms up. See if you get a code, and see if it has it's pickup back before you get the heater code again.

1sikhatch

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

put power to it and listen for a click (meaning it opened the path that oil travels through to the head). If the screen is clogged, or there isn't enough oil/oil pressure, vtec will not engage. Also make sure your pressure switch is grounded well.</TD></TR></TABLE>


so with the engine off i just run a wire from the battery to the vtec wire and i should hear the click right? and the pressure switch ur talking about is the one with the green plug? cause its all factory wiring so it should be grounded good

dantastic

get a timing light and set your timing. also, the skunk2 chip is probably hurting your performance.

IHateJDM

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1sikhatch &raquo;</TD></TR><TR><TD CLASS="quote">


so with the engine off i just run a wire from the battery to the vtec wire and i should hear the click right? and the pressure switch ur talking about is the one with the green plug? cause its all factory wiring so it should be grounded good</TD></TR></TABLE>

solenoid is the one wire plug, run it to the + on the battery and listen for the click.
pressure switch has 2 wires (usually black and blue wire). Black is your ground, but if its all factory, that's probably not it.

1sikhatch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dantastic &raquo;</TD></TR><TR><TD CLASS="quote">get a timing light and set your timing. also, the skunk2 chip is probably hurting your performance.</TD></TR></TABLE>

bad thing is that its missing the timing cover

.Beaver

On a Z6 stock vtec engagement is 4800, not sure what the chip is, but if vtec doesn't engage it'll be very "lame"

1sikhatch

good newz, its WORKING!!!!!!!!!!!!

i changed out the ecu for a stock one then i noticed that around 2k rpm the engine had a little bog then would pick up like a demon so then i bought a dizzy dropped it in and what a difference did that make. Time go make back my money.

Thanks for all the help guys