Revs Jumping Around (vid included)

[aznstyler]

http://www.youtube.com/watch?v=q2KlJHwmcZ0&feature=g-upl&context=G29faaf8AUAAAAAAAAAA

What can cause this to happen ? car feels very slow and pings sometimes.

[bennjamin]

The tachometer takes its signal off a sensor in the distributor - check
The wiring from the dash to the engine bay wiring loom , and then also check the dizzy clip itself . Make sure no pulls or shorts etc. might also be the sensor itself is dying/dead leaving you with the need for a new dizzy
.

[VTec1987]

Change the ICM in the dizzy, this will fix the problem

[aznstyler]

but what about power loss? How it pings, sounds line it mis fires on high revs

[dc2r-0636]

Yeh above it's an ignition problem with the dizzy, that's why it misfires and tacho is out.

[aznstyler]

So new dizzy? could it also me timing?

[aznstyler]

problem is only in high revs also

[dc2r-0636]

Could be timing, but in my case it wasn't.
No harm in trying to set the timing if u have a timing light or a friend that could do it.

[VTec1987]

Change the ICM inside the dizzy or change your whole dizzy as you wish

this should fix your problem, advise us what happens after you changed it

[aznstyler]

How do u change the ICM ?

[charliebrown]

How do u change the ICM ?

http://www.ozhonda.com/forum/showthread.php?127058-DIY-Ignition-Control-Module-(ICM)-Replacement.-Lots-of-Pics!

I have the same problem on my EG, haven't got around to changing the ICM yet

[aznstyler]

Mechanic Rkn it's my spark plug leads.. Cause everytime he pushed the 3rd lead he gets sparked. Waiting for repco to get leads in...