ok......

I'm having problems with the tach jumping around 4-5k, car hesitates at the same time. Then in vtec Tach goes crazy revving PAST THE 10k on my usdm itr cluster and bogs and back-fires really bad. Also smokes some when bogging and jerks the car around some. But runs better after attempting to engage vtec a few times but still bogs, backfires and hesitates.

Things I've replaced so far....

New Distributor (From Distributor King)
New MSD 8.5mm Spark Plug Wires
New NGK Iridium Spark Plugs
New T-Belt and Water-Pump
New Clutch (PP and disc)
Vtec Solenoid is minty

Changed the ignitor a few times and it fixed the problem temporarily.
Also when the new Dizzy was installed it fixed the problem temporarily and now it has come back to haunt me once again a few weeks/months and $700 later
When i say temporarily i usually runs fun for a few weeks and then oneday the Tach will jump and then before you know it I'm back to bogging

Problem started to occur ever since my Dizzy went on me after missing 3rd at 8900rpm, Tach went past the 10k mark and then car shut off (Missed 3rd due to a bad clutch) but that was 2 dizzy's and 2 ignitors ago since then i've replaced the things above......

93 cx hatch w/ jdm itr swap
99 gsr engine harness
P28 chipped to itr spec (not professionaly done)
usdm itr cluster @ the moment (going back to stock)

I plan on trying a different ECU to see if thats at fault but if its not then next are the injectors and then the fuel pump but......
Whoever figures out the problem w/o me spending anymore big bucks I'm willing to give them 50 BUCKS I'm paypal verified

 

sounds like it could be a loose pin on your wireharness

 

Either that or you've got some kind of motion induced short in the ECU (loose piece of solder or something).

Any codes?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kendall &raquo;</TD></TR><TR><TD CLASS="quote">Either that or you've got some kind of motion induced short in the ECU (loose piece of solder or something).

Any codes?</TD></TR></TABLE>

I won't know until Thurs. when i put the stock civic cluster (ex/si cluster w/ Tach)
and a brand new uncut dash harness in on thurs.

well the loose pin theory should be solved after thursday (New harness and stock cluster)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bonez21 &raquo;</TD></TR><TR><TD CLASS="quote">the loose pin theory should be solved after thursday (New harness and stock cluster) </TD></TR></TABLE>

Don't rule out the possibility of a loose pin or a short in the engine harness.

 

I was going to say engine harness.

If you are messing with the distributor (ignitor) and it temporarily fixes it, that means that there is a loose connection somewhere near the distributor. Check the plugs around the dizzy for loose pins.

Good luck.

 

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

Don't rule out the possibility of a loose pin or a short in the engine harness.</TD></TR></TABLE>

At this point I'm not ruling out anything i haven't messed with already, EVERYTHING IS A SUSPECT HA!!!!!!

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TypeR &raquo;</TD></TR><TR><TD CLASS="quote">I was going to say engine harness.

If you are messing with the distributor (ignitor) and it temporarily fixes it, that means that there is a loose connection somewhere near the distributor. Check the plugs around the dizzy for loose pins.

Good luck. </TD></TR></TABLE>
Will do thanks alot but what other connections would i be checking? I installed the dizzy myself and the plugs were plug and play.....

 

Maybe a lose earth screw on your thermostat? I know someone who had the same problem.

 

my car does same exact thing right now, its been driving me insane for months

 

Also, make sure your tranny ground is tight!

My '92 GSR had a similar problem and it was because the tranny ground was loose and would rattle (loose connection) causing the ECU to cut.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gaskleppie &raquo;</TD></TR><TR><TD CLASS="quote">Maybe a lose earth screw on your thermostat? I know someone who had the same problem.
</TD></TR></TABLE>

I agree will that also kinda happened to me.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bonez21 &raquo;</TD></TR><TR><TD CLASS="quote">At this point I'm not ruling out anything i haven't messed with already, EVERYTHING IS A SUSPECT HA!!!!!!
</TD></TR></TABLE>

I agree..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gaskleppie &raquo;</TD></TR><TR><TD CLASS="quote">Maybe a lose earth screw on your thermostat? I know someone who had the same problem.
</TD></TR></TABLE>

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

I agree will that also kinda happened to me.</TD></TR></TABLE>

Where and wtf is that lol? lmk I'm desperate here..... I'll do whatever it takes....

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TypeR &raquo;</TD></TR><TR><TD CLASS="quote">Also, make sure your tranny ground is tight!

I looked at the tranny ground on Sat. its a bit rusted but looks secure i even sprayed some WD40 on the bolt but I'll check the tightness tomorrow

My '92 GSR had a similar problem and it was because the tranny ground was loose and would rattle (loose connection) causing the ECU to cut.</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Azcheron &raquo;</TD></TR><TR><TD CLASS="quote">my car does same exact thing right now, its been driving me insane for months</TD></TR></TABLE>

I FEEL YOUR PAIN, Doesn't it just make you wanna sell the damn thing

 

my guess
electric load detector

 

I think it's for sure electrical.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dan GSR &raquo;</TD></TR><TR><TD CLASS="quote">my guess
electric load detector</TD></TR></TABLE>

Electric Load Detector????? please more input.......

 

my civic did exactly the same thing

it turned out to be the tranny ground like some one esle said in here.
it's the ground behind where the water hoses go into the motor.

check all your grounds

 

I will thanks for the tips guys keepem coming

 

I had some really weird problems when I first got my swapped hatch running. I noticed that you said you had a P28 ecu that had been rechipped with ITR specs but it wasn't done professionaly. I found that my ECU was bad on my car and swapped it out and it solved all my problems. But from what others are saying you may have a wire problem elsewhere which would make more sense in your situation.

My car wouldnt idle right for anything and turns out after what seemed hours of troubleshooting my ecu was actually trying to engage vtec while idleing which is pretty weird and sounds pretty bad also all this popping and pinging coming from the valvetrain while at idle. I talked to alot of people that had never heard of that type of problem before but then again stock ECU's dont always go bad either.

 

grounds own u

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crx4life2002 &raquo;</TD></TR><TR><TD CLASS="quote">grounds own u</TD></TR></TABLE>

ha I'll checkem out man

 

check to see if ur dizzy is loose

 

I've had similar problems in the past. Have your battery and alternator tested.

 

You could also try temporarily replacing the ecu with a known good one from a different car...