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I'm assuming the car is properly tuned and the spark plug wires, cap and rotor are good?
Some other thoughts.....
1. I did notice that my car seemed to idle a little better after I removed and cleaned all electrical grounds and contacts in the engine bay. Use elecrical cleaner and apply dabs of dielectric grease where appropriate. Pay particular attention to f.i. grounds. Also clean up the fusebox and replace any questionable fuses.
2. Cleaning the flame trap and related hoses did seem to make a slight difference - maybe just my imagination?? Definitely made the car feel a little more peppy though! So you might be onto something there.
3. Aye Roll's right, clean throttle body and replace gasket. Check AMM hose.
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90 244DL 1/4 million miles - original engine/drivetrain :)
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