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Ignition Control Module Replacement

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Signs of a failing ignition control module

If the ignition control module fails, or is failing, the engine may run rough, stall, fail to start, hesitate, or buck during normal driving. The check engine light will illuminate on the instrument panel, and will often be flashing; this indicates the engine should be stopped immediately.

Best practices when replacing an ignition control module

The ignition control module must be diagnosed in a logical path, and may require diagnostic scanning in some cases.

Common misdiagnoses

Spark plugs, spark plug wires, ignition coils, and distributor cap and rotor sets are the most commonly replaced components to correct a misfire, even before testing the ignition control module. A functional fuel pump and fuel filter are commonly replaced in an attempt to solve ignition control module failure due to lack of testing.

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Audi 90 Ignition Control Module Replacement Cost by Year

The average cost for a Audi 90 Ignition Control Module Replacement is between $512 and $558 but can vary from car to car.

Audi Ignition Control Module Replacement Cost Estimates

The average cost for a Ignition Control Module Replacement is between $512 and $558 but can vary from car to car.

Estimates last updated January 28, 2026

Audi 90 Ignition Control Module Replacement Cost

The average cost for an Audi 90 Ignition Control Module Replacement is between $512 and $558.

Labor costs are estimated between $49 and $72 while parts are priced between $463 and $487.
This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
For a more accurate estimate based on your location, use our Fair Price Estimator below.