EGgoJDM

I recently acquired a chipped ecu obd1 with base map from phearable.net for my set up. I know it needs to be tuned but I notice that i keep smelling fuel and white smoke coming out of the muffler and i wondered why. I started removing the spark plugs to check for correct gapping and when I removed spark plug no.2, I notice that it was clean looking and it smell like fresh gasoline while the other 3 spark plugs were black and smell like burned fuel. That alone lets me know that there is no combustion in cylinder no2.
My question is, does anybody know if it's a dizzy problem or a spark plug wire?

<U>Engine setup</U>
precision 310cc fuel injectors
skunk2 pro 2+ cams
skunk2 pro cam gears
skunk2 pro springs, ti retainers and flat valves
skunk2 pro IM, BBK 70mm TB
2 layer oem head gasket
ngk IR spark plugs
passwordjdm whale dick intake
stock block
2.5 straight pipe with ES oval muffler


Modified by EGgoJDM at 10:32 AM 10/16/2008

EGgoJDM

can anyone guide me... what can cause a misfire? distributor or spark plug wire... any GURUs out there... can you share your knowledge.

mar778c

iTrader: (1)

It could be a lot of things, but you've got fuel so that's one less thing to worry with.

Here's what I would do:
1) Check the dizzy cap and rotor.
2) Check the plug wire.

EGgoJDM

I pulled out the spark plug out and plug it to the wire to see if there is spark and i saw blue spark... what can it be?

mar778c

iTrader: (1)

If you have spark then leak test the cylinder. It could be a bent valve.

EGgoJDM

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mar778c &raquo;</TD></TR><TR><TD CLASS="quote">If you have spark then leak test the cylinder. It could be a bent valve.</TD></TR></TABLE>

A bent valve ... the valves are new. How do you bent a valve?

mar778c

iTrader: (1)

Over-rev, miss a shift, valves come in contact with the head.

Are you sure the dizzy is firing all cylinders?

IntegraType-R

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

A bent valve ... the valves are new. How do you bent a valve?</TD></TR></TABLE>

Your running pro2's.. Bending a valve is quite easy with cams that huge.

BMo Tuning

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

You're running pro2's.. Bending a valve is quite easy with cams that huge.</TD></TR></TABLE>

especially if the cams are zero'd out

IntegraType-R

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

especially if the cams are zero'd out </TD></TR></TABLE>

No "PRO" Series cams make they're most power 0ed out.. nor do they NEED to be 0ed out.. he probably contacted a valve slighty.

BMo Tuning

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

No "PRO" Series cams make they're most power 0ed out.. nor do they NEED to be 0ed out.. he probably contacted a valve slighty.</TD></TR></TABLE>

usually they like it when you take overlap away, i think the key for safety is to seperate them by 3 degrees?? or is it 4.......i dont remember.

IntegraType-R

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

usually they like it when you take overlap away, i think the key for safety is to seperate them by 3 degrees?? or is it 4.......i dont remember.

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

I LIKE ME SOME BMO TUNING BOY

BMo Tuning

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

I LIKE ME SOME BMO TUNING BOY</TD></TR></TABLE>

i heard they have medication to fix that.

EGgoJDM

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

Your running pro2's.. Bending a valve is quite easy with cams that huge.</TD></TR></TABLE>

I havent run it yet... all I've been doing is turning on the engine. I still need to wire the vtec and knock sensor.

EGgoJDM

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

usually they like it when you take overlap away, i think the key for safety is to seperate them by 3 degrees?? or is it 4.......i dont remember.

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

so if I degree the cams, I should not have a misfire?

BMo Tuning

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

I havent run it yet... all I've been doing is turning on the engine. I still need to wire the vtec and knock sensor.</TD></TR></TABLE>

wait.......what?

you have not fired the engine up yet?

EGgoJDM

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

wait.......what?

you have not fired the engine up yet?</TD></TR></TABLE>

Sorry... What I meant to say is that I have fired it up but not driving it anywhere far... just around that block.

IntegraType-R

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

Sorry... What I meant to say is that I have fired it up but not driving it anywhere far... just around that block.</TD></TR></TABLE>

you can bend a valve turning the engine by hand you can surely do it, driving around the block

EGgoJDM

Finaly after all this time... problem solved. I took the car to a friend of a friend. they found 5 bend intake valves. The reason was that the cams(skunk2 pro2) are too big and the valves needed a valves job. I was told that every time you get after market valves(skunk2 pro flat)... get a valve job.