I could really use some thoughts on what would possibly cause a jumping tach and a slight stutter at cruzing speeds especially around 3500RPM. I think Ive read that this could be a bad ground issue. Is this right? Which ground is typically the problem? Motor to chassis?
Car is bone stock except I/H.

Thanks a ton,
-S

 

i have a 88 crx si .... my tach jumps also .... so include mi ... ima need the help also

 

sounds like the ignitor is on it's way out

 

Ive seen the ignitors screws come loose and the igniter moves a little causing that issue. If its in there tight though id get a new ignitor.

 

ignitor .... more info please ....

 

does the tack jump when the car misses or does it do it by itself also?

 

by itself ....

 

check out your distributor and its internals

 

i have this same issue. I figured maybe a coil so i changed that and all was well for about a week and now it's back to the same old stuff. Any other ideas?

 

common failure. ignitor needs replacement.

does it really need to be said any more?

 

Thanks for all the input. Is there a test I can run to check the ignitor? Resistance?

 

You can take the ignition module to a parts store and they can test it for you if you are lazy...

 

Im not lazy. Just wanted to know if there was a method to test the module.
Thank you.
-S

 

check the alternator could be that.....mine was only operating at 12% when i checked it, then drove it for about 20mi. then totally quit on me

 

I've had the same issue for a while now. I havent gotten around to checking the ignitor yet but I have noticed a few things.

The colder it is outside the worse the jumping of the tach.

When its really cold the engine bogs with the jumping tach.

Could this still relate to the ignitor?

 

kingofnothing

That is totally the symptoms my ef is having too. Its been 20 below zero here in central OR!!

 

you both need a new ignitor. just replace it. its not like you guys are the only ones, were all giving you guys advice form experience.

 

Thanks Tyson.
Im pricing out modules. Is common price $120?
Again, thank you for the advice. Im hoping to get mine done this weekend.

 

$80 online.

http://www.hondaautomotiveparts.com/...y5=DISTRIBUTOR

for $120, you could buy a whole new distributor from distributor king for a bit more.

 

I was told it was the ignitor also but it wasn't...I still haven't fould out why mine does what it does

 

donladmejr
Does your car stutter when your tach flips out?

 

Thanks Tyson.
Yeah, great price. Ill take that to my local dealer to see if they can price match.
They'll probably s*&$t their drawers.
-S

 

Here is an update to my problem. I removed the distrib cap to take a look at the ignitor, which I just ordered. I decided to clean up the cap and contacts inside the cap. When I cleaned the spark plug wire contacts inside the cap, a little white oxide pancake layer came off and the contacts cleaned up nice.
I also simply removed and replugged in the three wires that go to the ignitor. Reassembled and have not had a jump on the tach or engine stutter since.
Now I have a new ignitor in a box. Guess good back up equipment.
Thanks for everyones help.
-S

 

I'm assuming my issue may be different then this then.

I recently replaced the entire distributer assembly, plugs and wires and my idle is better than before, but it's still bouncing between 1200 and 1700 RPM (somewhere in that range) it only bounces around 100-200RPM at any one time, but it's mostly when I'm at idle and often only after I've driven it kinda hard for a bit....anyone have any thoughts?

 

bouncing?? liike idling up and down?? not smooth but more of a wahhh ohhhh wahhh ohhhh?? mine does it. i need a new tps. also air in cooling sytem is a culprit too