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Hi there,
The hesitation and bucking is between 2000 and 3000 rpm. I assume it's due to a lean condition caused either by a vacuum leak or low fuel pressure. The ignition system is ok and so is the CO mixture. I had a vacuum leak around the pop-off valve which made things better when fixed, so if the issue doesn't go away after I fix the fuel pressure, I'll go back to looking for vacuum leaks...
Have you had this problem?
Thomas
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Thomas
1976 911S Ice Green Metallic Targa
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