k1l4m

iTrader: (2)

I have been having this issue on and off. It's hard to replicate and I can go 3-4 days without noticing and then on the 5th day it will happen briefly and then won't notice it for another 4-5 days.

-RPMs will jump when you rev the car while stopped in neutral
-RPMs will hold for 1 second
-If you are in gear and you lift of the gas pedal and clutch in, revs will jump
-If you are trying to shift through the gears, revs will jump when you clutch in to shift
-Usually happens within the first 10-15 mins of driving, if it doesn't happen then, then I don't notice it for the rest of the drive.
-Might be a coincidence but seems to not happen if I turn the car off and back on?

First 2 videos from earlier today, last one was recorded just now.

Seems to retract fine, car off -
Seems to be working fine, car on -
Seems to be retracting very slowly, car off -
It's too late at night for me to try now, but I am guessing if the car was on in the 3rd video, the revs would jump/hold, correct?

Going to try and clean and lube what I can, maybe that may help before maybe replacing the cable if that's the issue.

Thanks in advance.

Savington

iTrader: (31)

The cables are extremely cheap. Just replace it.

k1l4m

iTrader: (2)

Good point. I guess I was maybe seeking some assurance that it does indeed sound like a faulty throttle cable and replacing it would fix the issue I seem to be having.

I'll place the order for a cable tomorrow as there was none at the dealerships in town today so hopefully by next week I'll know for sure.

albumleaf

iTrader: (7)

Also nevermind all the dumb m.net threads about replacement being a pain in the ***. Look at your new cable, observe the orientation of the two tabs under the dash. Use a small vice grip to depress the tabs and push it out.

sixshooter

iTrader: (12)

Those cables can melt if they aren't shielded from all of the exhaust components. Throttle return springs can break (I haven't specifically heard of it happening on a Miata). They can also be kinked or crushed by careless work under the hood.

As Andrew said, definitely change cable, but try to determine the root cause so it doesn't reoccur.