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Home >> Cadillac >> 1990 >> Seville STS, 440T4/ME9 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> ECM Trouble Code Charts >> ECM Code EO26: Shorted Throttle Switch Circuit >> Test Conditions:

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Test Conditions:

Code EO21 and EO22 clear and throttle angle is 20-75 degrees.

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