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Ignition Knock (Detonation) Sensor. Color-Blue. Color-Green. Ignition Knock (Detonation) Sensor. Ignition Knock (Detonation) Sensor
Fits 200, 5000, 90, CoupeCoupe Quattro; Blue. W/200 Series. Knock Sensor - Repair or ReplaceA failed Knock Sensor will often have no noticeable symptoms beyond a check engine light or engine ping or knock, but it does cause your 1991 Audi 90 to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Audi genuine parts.
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