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Home >> Jeep >> 1991 >> Wrangler Base, 4.0 S, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/O Codes >> Symptoms >> Engine Runs Only With Key In Start Position
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Engine Runs Only With Key In Start Position

Check resistance wire for open circuit or excessive resistance (5.9L engine). See appropriate SYSTEM/COMPONENT TESTS article. See list below.