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Electronically controlled two-barrel Carter carbs on 258 sixes have wires sticking out the back, and are found on CJs and YJs from 1982 until fuel injection was introduced. The throttle shafts wear out and suck in air at idle, causing the mixture to lean out. The lean condition is automatically compensated for by the computer, causing the idle to be erratic. A proper rebuild of these carbs entails reaming the carb base and installing bushings to cure the air leak.
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 Electronically controlled two-barrel Carter carbs on 258 sixes have wires sticking out the back, and are found on CJs and YJs from 1982 until fuel injection was introduced. The throttle shafts wear out and suck in air at idle, causing the mixture to lean out. The lean condition is automatically compensated for by the computer, causing the idle to be erratic. A proper rebuild of these carbs entails reaming the carb base and installing bushings to cure the air leak.  View Related Article

 

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