> Just bought an 81 280ZXT with 46k. The car
> runs strong under acceleration but at a
> steady speed has a miss. I've changed
> plugs,cap,rotor,EGR valve,PCV valve. Also
> checked vacuum lines and injector
> connections. Any other ideas? Thanks!
You might want to check injector operation.
Easy test.
Use a long screwdriver as a stethescope by placing it on the injector block and put your ear to it.
If the injector is working you'll hear and feel it clicking as it fires. If you find an injector that doesn't exhibit this, it's probably a bad injector.
Good luck