Would a faulty fuse box be the culprit? Or a bad dizzy? Or cap? Just got the o2 sensors replaced. New thermostat. New radiator.

 

what codes are you throwing?

 

yeah whats the code?

 

It put down an o2 signal, but I just got them replaced. So the engine light doesn't come on now, but it's still going crazy. Should've mentioned that before.

 

That's crazy, I expected a simple idle hunt... Throttle position sensor? just a guess

 

Seems like a bad ground or loose or bad wiring connector.

 

I agree with this guy, get the helms manual and find your grounds and clean them one at a time.

 

When mine did that it was a bad igniter.

Most people end up just replacing the distributor to solve that issue.

When I wrote this post I was assuming we were talking about the needle jumping around

 

If it's revving that high, the throttle plate would have to be opening. Check that it's not.

 

Wait a sec...............are you not stepping on the throttle at all in that video?


Like F22 says, it can't possibly rev that high with the throttle plate closed. If it is, I'd have to assume you're getting mass amounts of air sneaking into the intake past the TB.

 

vacuum lines? looks like a the ecu is frying at the end there.

 

i would say ecu issue too