Detonation WELLS VEHICLE ELECTRONICS SU7697

WELLS VEHICLE ELECTRONICS

SU7697

Wells SU7697 Ignition Knock/Detonation Sensor

EAN: 0025889424396

UPC: 025889424396

Detonation


Overmolded plastics resist shrinkage due to age and heat
Internal seals resist moisture
100 percent computer controlled testing
Mounting threads match OE for exact fit

Wells Vehicle Electronics' Ignition Knock (Detonation) Sensors are designed and manufactured to meet or exceed original equipment manufacturers' specifications for performance and durability. The Ignition Knock (Detonation) Sensor, also known as the Knock Sensor or KS, "listens" for certain harmonic frequencies associated with engine knock or "ping" and sends a voltage signal to the Engine Control Module (ECM) when detected. The ECM calculates proper ignition spark timing based in part on the Ignition Knock (Detonation) Sensor's signal. A malfunctioning or inoperative Ignition Knock (Detonation) Sensor can allow engine knock or "ping" to occur for which the ECM would otherwise adjust ignition timing to eliminate. It can also cause the Check Engine Light (CEL), Service Engine Soon (SES), or Malfunction Indicator Lamp (MIL) to illuminate and can set a trouble code (P-code) in the ECM when not functioning correctly. Not correcting a failed Ignition Knock (Detonation) Sensor condition can cause reduced fuel mileage and performance under load, increased emissions, and damage to other components. Prolonged engine knock can cause internal engine damage from the piston skirt "slapping" against the cylinder wall.

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