imported_xplizitremix

So i did some research on the forums

My RPM is working PERFECT until i hit 6-7 K
After that the needle goes crazy bouncing from 6- 9 all over
so its not smooth anymore .

I :

1.) unplugged all the dizzy plugs
2.) replugged everything
3.) checked the sensors on the dizzy

And problem still there ( im sorry neighborhood for hitting vtec at 3:02 a.m.) but the problem bugs me


I HAVN'T
Touched any grounds on the car yet maybe its loose? but if it was i'd guess it would bounce around regardless not just on 6-7 k

It started when i was driving and went over a bunch of consecutive bumps on airport road (crappy *** roads they never fix what really needs to be fixed) and as it went over them pretty quick i saw the tach bounch all over and then after it went below 4k it went smoothly again.

Someone said my dizzy is done and i need another one?? but i don't see why it would be if its just a bunch of bumps and high revs.


Any help please,
Also if your going to reply and say " take the dizzy cap off etc"
Leave detailed instructions LOL and any precautions
Just in case
Thanks

imported_xplizitremix

Nobody?
:S

bbarbulo

iTrader: (2)

yeah I'd start with checking out the grounds on the vehicle... then remove the cap (this should be easy for you to do, if you need instructions, maybe you shouldn't be doing it) and check for water in there. the tach signal comes from the dizzy...

if you can' get another cluster from a buddy and test it (so you can eliminate the cluster as the problem)... then you just gotta make sure the wiring isn't damaged (perhaps a shielded wire got stripped)... check the tach output from the distributor (see factory service manual for a prelude) as well... if the output is bad right at the dizzy, then you might as well start shopping for a distributor...

thing is if the rpms are getting all crazy (depending on what OBD level you have) your ECU should be giving you a code, cuz OBD2 engines reference the CKP and CKF sensors.

imported_ludesrv

I know that in my car because it hits the dash at 8000rpm, that after a few months of driving like that that the tach will float from 5-8 whenever you go into it. It's usually the cluster that failed internally.