My 89 camaro shows idling at 5000. I recently changed caps and rotor and changed wires. Changed the battery also. Any idea how to fix?

 

Still not fixed...anyone ever had this problem?

 

i am having that problem with my 91 RS it's showing 2500rpm at idle

 

Your solution is here, well, maybe:

https://www.thirdgen.org/forums/elec...meter-fix.html

Mine is 89 so a little bit different.

I am thinking the capacitor is good, but since I changed the cap and rotor and put an MSD it is cousing the problem. I now have to try: first change the cap and rotor to another brand, maybe ac delco., then maybe swap the tach if it didnt work.

 

Yeah, it's just an inaccurate tach. Fix the tach or get an aftermarket one.

 

Hate to tell you this, but our tachometers are notoriously inaccurate. You'll have better luck in the electronics board if you want a solution though, try a search. I've seen many threads on it. Or like he ^^^ said, an aftermarket tach is a simple "solution" as well, if you're not a stock ****

 

Swaped the tach, problem solved. Found a used one from a guy who was parting out his camaro.