85 GT jitters

[MetalBlue85GT]

So I have this jitter in the car when I am at constant speed it is like the car is missing. I have changed: distributor, cap rotor, the ECM 2x so I have 3 good ones. the spark plugs, wires and coil. It is the last mechanical thing I need to fix on this car so I can claim victory and start looking for my own.

Since the above I went back to the old Coil and spark plug wires. a slight change but is it still doing it. I am going to probably swap all the spark plugs out.

Any other Ideas?

[Fierofool]

I don't know if we talked about it, but when the timing was set, was it in Drive?  I didn't know you were supposed to set the timing on an automatic with it in Drive.  If it wasn't, it might be that it's a little too far advanced, even though your light would indicate correct timing with it in Neutral. 

I could also drop off my infrared laser thermometer when I'm out there Saturday.  You could check your exhaust ports to see if they're all running near the same temp.  It could be a sticky injector. 

Another Fiero?  Tinman says he's selling his beautiful 85GT 4-speed.  See it in the Boy Scout thread.  It has it's own image sitting on top. 

[MetalBlue85GT]

Well between buying the 2nd donated car and the Red one I am wanting one of my own to start on.  I need a hobby to fill my time in the winter.

I am soo close on my sons first car from being done I am ready to start looking for my own.

[Roger]

Check this out.
It is also better to set the timing when the engine is at operating temperature.

http://gafiero.org/timing.shtml