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Home >> Jeep >> 1981 >> CJ7 Base, 2.5L Eng VIN B, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Controlled Catalytic Converter (C-4) System >> Testing & Diagnosis >> System Performance Check >> Notes
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System Performance Check: Notes

Since it is not possible to store a code for every possible problem, one may develop in which the "CHECK CARB" light does NOT come on. If C-4 system is suspected, make a System Performance Check, using a dwell meter, ohmmeter, test light, voltmeter, tachometer, vacuum gauge and jumper wires. Refer to  Figure  chart later in this article  .