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Home >> Cadillac >> 1990 >> Allante F7/ME9 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Ignition Systems >> HEI System Tests

HEI System Tests

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For HEI diagnosis, see Fig 1 and Fig 2 .

Fig 1: Intermittent Operation Or Miss Flow Chart
G00114068Courtesy of GENERAL MOTORS CORP.
Fig 2: Engine Cranks, But Will Not Start (With Integral Ignition Coil) Flow Chart
G00114066Courtesy of GENERAL MOTORS CORP.